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Marshall’s Physiology of Reproduction pp 233–460Cite as

Placentation

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Abstract

This review of vertebrate placental structure attempts to integrate some of the considerable body of work done using electron microscopic and other techniques since Amoroso’s classic 1952 chapter. The reference list concentrates on the most recent work. Mossman (1987) provides the best comprehensive list of placental references. This chapter is mainly concerned with providing data to facilitate broad comparisons of structures and secretions both during development and in their final form with a view to relating them to the functional activity of the placenta. The remarkably wide variety of structures in the mature placenta develops from a basically similar repertoire of extraembryonic membranes as typified in the amniote egg, and the diversity can be further simplified by use of straightforward structural criteria. The major problem is to relate those criteria to the wide range of functions served by the placenta. A few non-amniotes have developed analogous structures which serve similar functions to the extraembryonic membranes, and these offer further insights into the requirements for successful fetal development (Hagan, 1951; Woollacott and Zimmer, 1975; Amoroso et al., 1979; Bone et al., 1985).

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References

  • Adelman, J.P., Mason, A.J., Hayflick, J.S. and Seeburg, P.H. (1986) Isolation of the gene and hypothalamic cDNA for the common precursor of gonadotropin-releasing hormone and prolac-tin release-inhibiting factor in human and rat. Proceedings of the National Academy of Sciences of the USA, 83, 179–183.

    Article  PubMed  CAS  Google Scholar 

  • Aitken, R.J. (1974) Delayed implantation in roe deer. Journal of Reproduction and Fertility, 39, 225–233.

    Article  PubMed  CAS  Google Scholar 

  • Al-Timimi, A. and Fox, H. (1986) Immuno-histochemical localisation of FSH, LH, GH, ACTH and PRL in the human placenta. Placenta, 7, 163–172.

    Article  PubMed  CAS  Google Scholar 

  • Alexander, G. (1964) Studies on the placenta of the sheep (Ovis aries L.): effect of surgical reduction in the number of caruncles. Journal of Reproduction and Fertility, 7, 307–322.

    Article  PubMed  CAS  Google Scholar 

  • Alexander, G. and Williams, D. (1966) Progesterone and placental development in the sheep. Journal of Endocrinology, 34, 241–245.

    Article  PubMed  CAS  Google Scholar 

  • Alexander, G. and Williams, D. (1968) Hormonal control of amniotic and allantoic fluid volume in ovariectomized sheep. Journal of Endocrinology, 41, 477–485.

    Article  PubMed  CAS  Google Scholar 

  • Allen, W.R. (1975) Endocrine functions of the placenta, in Comparative Placentation (ed. D. Steven), Academic Press, London, pp. 214–267.

    Google Scholar 

  • Allen, W.R. (1982) Immunological aspects of the endometrial cup reaction and the effect of xeno-geneic pregnancy in horses and donkeys. Journal of Reproduction and Fertility, 31, 57–94.

    PubMed  CAS  Google Scholar 

  • Allen, W.R. and Moor, R.M. (1972) The origin of the equine endometrial cups. I. Production of PMSG by fetal trophoblast cells. Journal of Reproduction and Fertility, 29, 313–316.

    Article  PubMed  CAS  Google Scholar 

  • Allen, W.R., Hamilton, D.W. and Moor, R.M. (1973) Origin of equine endometrial cups. II. Invasion of the endometrium by trophoblast. Anatomical Record, 177, 485–502.

    Article  PubMed  CAS  Google Scholar 

  • Allen, W.R., Kydd, J.H. and Antczak, D.F. (1986) Successful applications of immunotherapeutics to a model of pregnancy failure in equids, in Reproductive Immunology (eds D.A. Clark and B.A. Croy), Elsevier Science, Amsterdam, 253–260.

    Google Scholar 

  • Allen, W.R., Kydd, J.H., Boyle, M.S. and Antczak, D.F. (1987) Extraspecific donkey x horse pregnancy as a model for early fetal death. Journal of Reproduction and Fertility, Suppl. 35, 197–209.

    PubMed  CAS  Google Scholar 

  • Amoroso, E.C. (1952) Placentation, in Marshall’s Physiology of Reproduction, Vol. II Chapter 15, Longman, Green and Co., London, pp. 127–311.

    Google Scholar 

  • Amoroso, E.C. (1960) Viviparity in fishes. Symposia of the Zoological Society of London, 1, 153–181.

    Google Scholar 

  • Amoroso, E.C. (1981) Viviparity, in Cellular and Molecular Aspects of Implantation (eds S.R. Glasser and D.H. Bullock), Plenum Press, New York, pp. 3–25.

    Chapter  Google Scholar 

  • Amoroso, E.C. and Perry, J.S. (1975) The existence during gestation of an immunological buffer zone at the interface between maternal and foetal tissues. Philosophical Transactions of the Royal Society, B 271, 343–361.

    Article  CAS  Google Scholar 

  • Amoroso, E.C, Heap, R.B. and Renfree, M.B. (1979) Hormones and the evolution of viviparity (ed. E.J.W. Barrington), Hormones and Evolution, Academic Press, New York.

    Google Scholar 

  • Anderson, A.B.M., Flint, A.P.F. and Turnbull, A.C. (1975) Mechanism of action of glucocorti-coids in induction of ovine parturition: effect on placental steroid metabolism. Journal of Endocrinology, 66, 61–70.

    Article  PubMed  CAS  Google Scholar 

  • Anderson, D. and Faber, J.J. (1982) Regulation of fetal placental blood flow in the lamb. American Journal of Physiology, 247, R567–R574.

    Google Scholar 

  • Anderson, G.B. (1988) Interspecific pregnancy: barriers and prospects. Biology of Reproduction, 38, 1–15.

    Article  PubMed  CAS  Google Scholar 

  • Anderson, J.W. (1969) Ultrastructure of the placenta and fetal membranes of the dog. I. The placental labyrinth. Anatomical Record, 165, 15–36.

    Article  PubMed  CAS  Google Scholar 

  • Anderson, J.W. and Wimsatt, W.A. (1963) Placentation and fetal membranes of the Central American Noctilionid bat Noctilio labialis minor. American Journal of Anatomy, 112, 181–202

    Article  PubMed  CAS  Google Scholar 

  • Anderson, T.L. and Hoffman, L.H. (1984) Alterations in epithelial glycocalyx of rabbit uteri during early pseudopregnancy and pregnancy and following ovariectomy. American Journal of Anatomy, 171, 321–334.

    Article  PubMed  CAS  Google Scholar 

  • Anderson, T.L., Olson, G.E. and Hoffman, L.H. (1986) Stage specific alterations in the apical membrane glycoproteins of endometrial epithelial cells related to implantation in rabbits. Biology of Reproduction, 34, 701–720.

    Article  PubMed  CAS  Google Scholar 

  • Aoki, A., Metz, J. and Forssman, W.G. (1978) Studies on the ultrastructural and permeability of the haemotrichorial placenta. II. Fetal capillaries and tracer administration into the fetal blood circulation. Cell and Tissue Research, 192, 409–422.

    Article  PubMed  CAS  Google Scholar 

  • Aplin, J.D. (1991) Review: Implantation, tropho-blast differentiation and hemochorial placen-tation, mechanistic evidence in vivo and in vitro. Journal of Cell Science, 99, 681–692.

    PubMed  Google Scholar 

  • Arima, Y. and Bremel, R.D. (1983) Purification and characterisation of bovine placental lactogen. Endocrinology, 113, 2186–2194.

    Article  PubMed  CAS  Google Scholar 

  • Aschheim, S. and Zondek, B. (1927) Hypophysen vorderlappenhormon und ovarial-hormon im Harn von schwangeren. Klinische Wochenschrift, 6, 1322.

    Article  Google Scholar 

  • Assheton, R. (1906) The morphology of the ungulate placenta, particularly the development of that organ in the sheep and notes upon the placenta of the elephant and hyrax. Philosophical Transactions of the Royal Society, B 198, 143–315.

    Article  Google Scholar 

  • Bacon, B.J., Gilbert, R.D., Kaufmann, P., Smith, A.D., Trevino, F.T. and Longo, L.D. (1984) Placental anatomy and diffusing capacity in guinea pigs following long-term maternal hypoxia. Placenta, 5, 475–488.

    Article  PubMed  CAS  Google Scholar 

  • Bainter, K. (1986) Intestinal absorption of macro-molecules and immune transmission from mother to young. CRC Press, Florida.

    Google Scholar 

  • Bambra, C.S., Lynch, S.S., Foxcroft, G.R., Robinson, G. and Amoroso, E.C. (1984) Purification and characterization of guinea-pig chorionic gonadotrophin. Journal of Reproduction and Fertility, 71, 227–233.

    Article  PubMed  CAS  Google Scholar 

  • Barcroft, J. (1933) Researches on Pre-natal Life. Blackwell Scientific Publications, Oxford.

    Google Scholar 

  • Barcroft, J. and Barron, D.H. (1946) Observations on the form and relations of the maternal and fetal vessels in the placenta of the sheep. Anatomical Record, 94, 569–595.

    Article  PubMed  CAS  Google Scholar 

  • Barlow, P.W. and Sherman, M.I. (1972) The biochemistry of differentiation of mouse tropho-blast: studies on polyploidy. Journal of Experimental Embryology and Medicine, 27, 447–465.

    CAS  Google Scholar 

  • Barnes, R.J., Comline, R.S., Silver, M. and Steven, D.H. (1976) Ultrastructural changes in the placenta of the ewe after fetal hypophysectomy or adrenalectomy. Journal of Physiology, 263, 173–174.

    Google Scholar 

  • Barrau, M.D., Abel, J.H., Torbit, C.A. and Tietz, W.J. (1975) Development of the implantation chamber in the pregnant bitch. American Journal of Anatomy, 143, 115–130.

    Article  PubMed  CAS  Google Scholar 

  • Bass, F., Krane, E.J., Mallon, K., Nathanielz, P.W. and Steven, D.H. (1977) Mobilisation of bi-nucleate cells in the placenta of the ewe after foetal pituitary stalk section. Journal of Endocrinology, 73, 36–37.

    Google Scholar 

  • Bassett, J.M. (1991) Current perspectives on placental development and its integration with fetal growth. Proceedings of the Nutrition Society, 50, 311–319.

    Article  PubMed  CAS  Google Scholar 

  • Bassett, J.M., Oxborrow, T.J., Smith, I.D. and Thorburn, G.D. (1969) The concentration of progesterone in the peripheral plasma of the pregnant ewe. Journal of Endocrinology, 45, 449–457.

    Article  PubMed  CAS  Google Scholar 

  • Battaglia, F.C. (1992) New concepts in fetal and placental amino acid metabolism. Journal of Animal Science, 70, 3258–3270.

    PubMed  CAS  Google Scholar 

  • Battaglia, F.C. and Meschia, G. (1973) Foetal metabolism and substrate utilization, in Proceedings of the Sir Joseph Barcroft Centenary Symposium (eds K.S. Comline and K.W. Cross), Cambridge University Press, pp. 382-397.

    Google Scholar 

  • Battaglia, F.C. and Meschia, G. (1978) Principal substrates of fetal metabolism. Physiological Reviews, 58, 499–527.

    PubMed  CAS  Google Scholar 

  • Battaglia, F.C. and Meschia, G. (1986) An Introduction to Fetal Physiology, Academic Press, Orlando, Florida.

    Google Scholar 

  • Battista, P.J., Bell, A.W., Deaver, D.R. and Currie, W.B. (1990) Differential control of placental lactogen release and progesterone production by ovine placental tissue in vitro. Placenta, 11, 337–348.

    Article  PubMed  CAS  Google Scholar 

  • Bauchot, R. (1965) La placentation chez les reptiles. Annales Biologia, 4, 547–575.

    CAS  Google Scholar 

  • Baur, R. (1972) Quantitative analyse des wach-stums der Zottenoberfläche bei der Placenta des Rindes und des Menschen. Zeitschrift fur Anatomie Entwicklungsgeschichte, 136, 87–97.

    Article  CAS  Google Scholar 

  • Baur, R. (1977) Morphometry of the placental exchange area. Advances in Anatomy Embryology and Cell Biology, 53, 1–63.

    Google Scholar 

  • Bazer, F.W. and First, N.L. (1983) Pregnancy and parturition. Journal of Animal Science, 57, Suppl. 2, 425–460.

    PubMed  CAS  Google Scholar 

  • Bazer, F.W., Marengo, S.R., Geisert, R.D. and Thatcher, W.W. (1984) Exocrine versus endocrine secretion of PGF2α in the control of pregnancy in swine. Animal Reproduction Science, 7, 115–132.

    Article  CAS  Google Scholar 

  • Bazer, F.W., Vallet, J.L., Roberts, R.M., Sharp, D.C. and Thatcher, W.W. (1986) Role of concep-tus secretory products in establishment of pregnancy. Journal of Reproduction and Fertility, 76, 841–850.

    Article  PubMed  CAS  Google Scholar 

  • Bazer, F.W., Vallet, J.L., Harvey, J.P., Gross, T.S. and Thatcher, W.W. (1989) Comparative aspects of maternal recognition of pregnancy between sheep and pigs. Journal of Reproduction and Fertility, Suppl. 37, 85–89.

    PubMed  CAS  Google Scholar 

  • Beaulaton, J. and Lockshin, R.A. (1982) The relation of programmed cell death to development and reproduction: Comparative studies and an attempt at classification. International Review of Cytology, 79, 215–235.

    Article  PubMed  CAS  Google Scholar 

  • Becher, H. (1931) Placenta und uterus Schleimhaut von Tamandua tetradactyla (Myrmecophaga). Morphologisches Jahrbucher, 67, 381–458.

    Google Scholar 

  • Beck, F. and Lowe, J.R. (1972) The stimulation of a maternal pregnancy reaction in the ferret. Journal of Anatomy, 111, 333.

    PubMed  CAS  Google Scholar 

  • Beckers, J.F., DeCoster, R., Wouter-Ballman, P., Fromant Lienard, Ch., Vander Zwalmen, P. and Ecters, F. (1982) Dosage radioimmunologique de l’hormone placentaire somatotrope et mammo-trope bovine. Annales Médecine Vétérinaire, 126, 9–21.

    Google Scholar 

  • Bell, A.W. (1984) Factors controlling placental and fetal growth and their effects on future production, in Reproduction in Sheep (eds D.H. Lindsay and D.T. Pearce) Cambridge University Press, pp. 144-152.

    Google Scholar 

  • Bell, A.W. (1991) The whole animal-pregnancy and fetal metabolism, in Quantitative Aspects of Ruminant Digestion and Metabolism (eds J.M. Forbes and J. France), Butterworths, London, pp. 100–145.

    Google Scholar 

  • Bell, C. (1972) Autonomic nervous control of reproduction: circulatory and other factors. Pharmacological Reviews, 24, 657–736.

    PubMed  CAS  Google Scholar 

  • Bell, C. (1974) Control of uterine blood flow in pregnancy. Medical Biology, 52, 219–228.

    PubMed  CAS  Google Scholar 

  • Bell, S.C. (1979) Immunochemical identity of decidualisation associated protein and α2acute phase macroglobulin in the pregnant rat. Journal of Reproductive Immunology, 1, 193–206.

    Article  PubMed  CAS  Google Scholar 

  • Bell, S.C. (1983) Decidualisation: regional differentiation and associated functions. Oxford Review of Reproductive Biology, 5, 220–271.

    Google Scholar 

  • Bell, S.C, Patel, S.R., Jackson, J.A. and Waites, G.T. (1988) Major secretory protein of human decidualised endometrium is an IGF binding protein. Journal of Endocrinology, 118, 317–328.

    Article  PubMed  CAS  Google Scholar 

  • Ben David, E. and Shemesh, M. (1990) Localisation of cytoplasmic side chain cleavage enzyme in the bovine placentome using the protein A gold technique. Biology of Reproduction, 42, 131–138.

    Article  PubMed  CAS  Google Scholar 

  • Ben Rafael, Z. and Orvieto, R. (1992) Cytokines: involvement in reproduction. Fertility and Sterility, 58, 1093–1099.

    PubMed  CAS  Google Scholar 

  • Benirschke, K. (1983) Placentation. Journal of Experimental Biology, 200, 385–389.

    Google Scholar 

  • Bennett, M.J., Grudzinskas, J.G., Gordon, Y.B. and Turnbull, A.C. (1978) Circulating levels of alpha-fetoprotein and pregnancy specific β, gly-coprotein in pregnancies without an embryo. British Journal of Obstetrics and Gynaecology, 85, 348–350.

    Article  PubMed  CAS  Google Scholar 

  • Betteridge, K.J. (1989) The structure and function of the equine capsule in relation to embryo manipulation and transfer. Equine Veterinary Journal, Suppl. 8, 91–100.

    Google Scholar 

  • Bevilacqua, E.M.A.F. and Abrahamsohn, P.A. (1989) Trophoblast invasion during implantation of the mouse embryo. Archivos de Biologia y Medicina Experimentales, 22, 107–118.

    PubMed  CAS  Google Scholar 

  • Bhavnani, B.R. and Woolever, C.A. (1978) Formation of steroids by the pregnant mare. VI. Metabolism of [3H]dehydroepiandrosterone injected into the fetus. Endocrinology, 103, 2291–2298.

    Article  PubMed  CAS  Google Scholar 

  • Bhiwgade, D.A. (1990) Comparative electron microscopy of the chorioallantoic placental barrier in some Indian Chiroptera. Acta Anatomica, 138, 302–317.

    Article  PubMed  CAS  Google Scholar 

  • Billingsley, S.A. and Wooding, F.B.P. (1990) An immunogold cryoultrastructural study of sites of synthesis and storage of chorionic gonado-trophin and placental lactogen in human syncy-tiotrophoblast. Cell and Tissue Research, 261, 375–382.

    Article  PubMed  CAS  Google Scholar 

  • Billington, W.D. and Bell, S.C. (1983) Immunology of mouse trophoblast, in Biology of Trophoblast (eds C. Loke and A. Whyte), Elsevier, Amsterdam, pp. 571–594.

    Google Scholar 

  • Bissonnette, J.M. (1981) Studies in vivo of glucose transfer across the guinea-pig placenta. Placenta, Suppl. 2, 155–162.

    Article  Google Scholar 

  • Bissonnette, J.M. and Farrell, R.C. (1973) Pressure-flow and pressure-volume relationships in the fetal placental circulation. Journal of Applied Physiology, 35, 355–360.

    PubMed  CAS  Google Scholar 

  • Bissonnette, J.M. and Wickham, W.K. (1977) Placental diffusing capacity for carbon monoxide in unanesthetized guinea pigs. Respiration Physiology, 31, 161–168.

    Article  PubMed  CAS  Google Scholar 

  • Bjorkman, N.H. (1968) Fine structure of cryptal and trophoblastic giant cells in the bovine pla-centome. Journal of Ultrastructural Research, 24, 249–258.

    Article  CAS  Google Scholar 

  • Bjorkman, N.H. (1970) An Atlas of Placental Fine Structure, Williams & Wilkins, Baltimore, USA.

    Google Scholar 

  • Bjorkman, N.H. and Bloom, G. (1957) On the fine structure of the foetal-maternal junction in the bovine placentome. Zeitschrift Zellforschung, 45, 649–659.

    CAS  Google Scholar 

  • Bjorkman, N.H. and Wimsatt, W.A. (1968) The allantoic placenta of the vampire bat (Desmodus rotundus marinus): A reinterpretation of its structure based on electron microscopic observations. Anatomical Record, 162, 83–98.

    Article  PubMed  CAS  Google Scholar 

  • Blackburn, D.G. (1993) Chorioallantoic placen-tation in Squamate reptiles: structure, function, development and evolution. Journal of Experimental Zoology, 266, 414–430.

    Article  Google Scholar 

  • Blackburn, D.G., Vitt, L.J. and Beuchat, C.A. (1984) Eutherian like reproductive specialisation in a viviparous reptile. Proceedings of the National Academy of Sciences of the USA, 81, 4860–4863.

    Article  PubMed  CAS  Google Scholar 

  • Blackburn, D.G., Osteen, K.G., Winfrey, V.P. and Hoffman, L.H. (1989) Obplacental giant cells of the domestic rabbit. Development, morphology and intermediate filament composition. Journal of Morphology, 202, 185–203.

    Article  PubMed  CAS  Google Scholar 

  • Blank, M.S., Chan, J.S.D. and Friesen, H.G. (1977) Placental lactogens, new developments. Journal of Steroid Biochemistry, 8, 403–414.

    Article  PubMed  CAS  Google Scholar 

  • Blankenship, T.N. and Given, R.L. (1992) Penetration of the uterine epithelial basement membrane during blastocyst implantation in the mouse. Anatomical Record, 233, 196–204.

    Article  PubMed  CAS  Google Scholar 

  • Blankenship, T.N., Given, R.L. and Parkening, T.A. (1990) Blastocyst implantation in the Chinese hamster (Cricetulus griseus). American Journal of Anatomy, 187, 137–157.

    Article  PubMed  CAS  Google Scholar 

  • Blankenship, T.N., Enders, A.C. and King, B.F. (1992) Distribution of laminin, type IV collagen and fibronectin in the cell columns and trophoblast shell of early macaque placentas. Cell and Tissue Research, 270, 241–248.

    Article  PubMed  CAS  Google Scholar 

  • Bleier, W.J. (1975) Early embryology and implantation in the California leafnosed bat Macrotus californicus. Anatomical Record, 182, 237–254.

    Article  PubMed  CAS  Google Scholar 

  • Bodley, H.D. (1974) Ultrastructural development of the chorioallantoic placental barrier in the bat Macrotus waterhousii. Anatomical Record, 180, 351–368.

    Article  PubMed  CAS  Google Scholar 

  • Bohn, H., Dati, F. and Lüben, G. (1983) Human trophoblast specific products other than hormones, in Biology of Trophoblast (eds Y.W. Loke and A. Whyte), Elsevier Science Publishers, Amsterdam, pp. 317–352.

    Google Scholar 

  • Boime, I., Otani, T. and Chaplin, D. (1989) Regulation of the hCG β subunit genes. Journal of Reproduction and Fertility, Suppl. 37, 1–10.

    PubMed  CAS  Google Scholar 

  • Bone, Q., Pulsford, A.L. and Amoroso, E.C. (1985) The placenta of the salp (Tunicata: Thaliaced). Placenta, 6, 53–64.

    Article  PubMed  CAS  Google Scholar 

  • Boshier, D.P. (1969) A histological and histo-chemical examination of implantation and early placentome formation in sheep. Journal of Reproduction and Fertility, 19, 51–61.

    Article  PubMed  CAS  Google Scholar 

  • Boshier, D.P. (1970) The pontamine blue reaction in pregnant sheep uteri. Journal of Reproduction and Fertility, 11, 595–596.

    Google Scholar 

  • Boshier, D.P. and Holloway, H. (1977) The sheep trophoblast and placental function: an ultra-structural study. Journal of Anatomy, 124, 287–298.

    PubMed  CAS  Google Scholar 

  • Boving, B. (1971) Biomechanism of implantation, in Biology of the Blastocyst (ed. R.J. Blandau), University of Chicago Press.

    Google Scholar 

  • Bower, D.J. (1987) Chromosome organisation in polyploid mouse trophoblast nuclei. Chromosoma, 95, 76–80.

    Article  PubMed  CAS  Google Scholar 

  • Boyd, J.D. and Hamilton, W.J. (1970) The Human Placenta, Heffers, Cambridge.

    Google Scholar 

  • Boyd, R.D., Morriss Jr., F.H., Meschia, G., Makowski, E.L. and Battaglia, F.C. (1973) Growth of glucose and oxygen uptakes by fetuses of fed and starved ewes. American Journal of Physiology, 225, 897–902.

    PubMed  CAS  Google Scholar 

  • Bradbury, S., Billington, W.D. and Kirby, D.R.S. (1965) A histochemical and electron microscopical study of the fibrinoid of the mouse placenta. Journal of the Royal Microscopical Society, 84, 199–211.

    Article  PubMed  CAS  Google Scholar 

  • Brambel, C.E. (1933) Allantochorionic differentiations of the pig studied morphologically and histochemically. American Journal of Anatomy, 51, 397–459.

    Article  Google Scholar 

  • Brambell, F.W.R. (1966) The transmission of passive immunity from mother to young and the catabolism of immunoglobulins. Lancet, ii, 1087–1093.

    Article  CAS  Google Scholar 

  • Brambell, F.W.R. (1970) The transmission of passive immunity from mother to young. Frontiers of Biology, Vol. 18, North Holland Press, Amsterdam.

    Google Scholar 

  • Braverman, M.B., Bagni, A., DeZiegler, D., Den, T. and Gurpide, E. (1984) Isolation of PRL producing cells from first and second trimester deci-dua. Journal of Clinical Endocrinology and Medicine, 58, 521–528.

    Article  CAS  Google Scholar 

  • Brierley, J. and Clark, D. A. (1987) Characterisation of hormone dependent suppressor cells in the uterus of mated and pseudopregnant mice. Journal of Reproductive Immunology, 10, 201–217.

    Article  PubMed  CAS  Google Scholar 

  • Brodsky, W.Y. and Uryvaeva, I.V. (1977) Cell polyploidy: its relation to tissue growth and function. International Review of Cytology, 50, 275–332.

    Article  PubMed  CAS  Google Scholar 

  • Brody, S. (1969) Foetus and Placenta (eds A. Klopper and E. Diczfalusy), Blackwell Scientific Publications, Oxford pp. 299–411.

    Google Scholar 

  • Brunette, M.G. (1988) Calcium transport through the placenta. Canadian Journal of Physiology and Pharmacology, 66, 1261–1269.

    Article  PubMed  CAS  Google Scholar 

  • Bryant Greenwood, G.D., Rees, M.C.P. and Turnbull, G.D. (1987) Immunohistochemical localisation of relaxin, prolactin and prostaglan-din synthesase in human amnion, chorion and decidua. Journal of Endocrinology, 114, 491–496.

    Article  PubMed  CAS  Google Scholar 

  • Bryden, M.M., Evans, H.E. and Binns, W. (1972) Embryology of the sheep. I. Extra embryonic membranes and the development of body form. Journal of Morphology, 138, 160–186.

    Google Scholar 

  • Buckrell, B.C., Gartley, C.J., Mehren, K.G., Crawshaw, G.J., Johnson, W.H., Barker, I.K., Coghill, C., Challis, J.R.G. and Goodrowe, K.L. (1990) Failure to maintain interspecific pregnancy after transfer of Dall’s sheep embryos to domestic ewes. Journal of Reproduction and Fertility, 90, 387–394.

    Article  PubMed  CAS  Google Scholar 

  • Bulmer, J.N., Billington, W.D. and Johnson, P.M. (1984) Immunohistological identification of tro-phoblast populations in early human pregnancy with the use of monoclonal antibodies. American Journal of Obstetrics and Gynecology, 148, 19–26.

    PubMed  CAS  Google Scholar 

  • Bulmer, J.N., Morrison, L., Johnson, P.M. and Meager, A. (1990) Immunohistochemical localisation of interferons in human placental tissue in normal ectopic and molar pregnancy. American Journal of Reproductive Immunology, 22, 109–116.

    PubMed  CAS  Google Scholar 

  • Bunch, T.D., Foote, W.C. and Spillett, J.J. (1976) Sheep-goat hybrid karyotypes. Theriogenology, 6, 379–385.

    Article  Google Scholar 

  • Burd, L.I., Jones Jr., M.D., Simmons, M.A., Makowski, E.L., Meschia, G. and Battaglia, F.C. (1975) Placental production and foetal utilization of lactate and pyruvate. Nature, 254, 710–711.

    Article  PubMed  CAS  Google Scholar 

  • Burgess, T.L. and Kelly, R.B. (1987) Constitutive and regulated secretion of proteins. Annual Review of Cell Biology, 3, 243–293.

    Article  PubMed  CAS  Google Scholar 

  • Burke, J.L., Rice, G.E., Ralph, M.M. and Thorburn, G.D. (1989) Effects of calcium availability on the release of ovine choriomammotro-pin from cotyledonary cells incubated in vitro. Comparative Biochemistry and Physiology, 93A, 489–492.

    CAS  Google Scholar 

  • Burton, G.J. (1982) Review Article. Placental uptake of maternal erythrocytes: a comparative study. Placenta, 3, 407–434.

    Article  PubMed  CAS  Google Scholar 

  • Burton, G.J. (1987) The fine structure of the h uman placental villus as revealed by scanning electron microscopy. Scanning Microscopy, 1, 1811–1828.

    PubMed  CAS  Google Scholar 

  • Burton, G.J. (1990) On the varied appearances of the human placenta villous surface visualised by scanning electron microscopy. Scanning Microscopy, 4, 501–507.

    PubMed  CAS  Google Scholar 

  • Burton, G.J. and Tham, S.W. (1992) Formation of vasculosyncytial membrane in the human placenta. Journal of Developmental Physiology, 18, 43–47.

    PubMed  CAS  Google Scholar 

  • Busch, L.C., Winterhager, E. and Fischer, B. (1986) Regeneration of the uterine epithelium in later stages of pseudopregnancy in the rabbit. An ultrastructural study. Anatomy and Embryology, 174, 97–104.

    Article  PubMed  CAS  Google Scholar 

  • Butler, H. (1967) The giant cell trophoblast of the Senegal galago (Galago senegalensis) and its bearing on the evolution of the primate placenta. Journal of Zoology, 152, 195–207.

    Article  Google Scholar 

  • Byatt, J.C. and Schimonuta, K., Duello, T.M. and Bremel, R.D. (1986) Isolation and characterisation of multiple forms of bovine placental lacto-gen from secretory granules of the fetal cotyledon. Endocrinology, 119, 1343–1350.

    Article  PubMed  CAS  Google Scholar 

  • Byatt, J.C, Warren, W.C, Eppard, P.J., Staten, N.R., Krivi, G.G. and Collier, R.J. (1992) Ruminant placental lactogens: structure and the biology. Journal of Animal Science, 70, 2911–2923.

    PubMed  CAS  Google Scholar 

  • Campbell, W.J., Deb, S., Kwok, S.C.M., Joslin, J.A. and Soares, M.J. (1989) Differential expression of placental lactogen II and prolactin like protein A in the rat placenta. Endocrinology, 125, 1565–1574.

    Article  PubMed  CAS  Google Scholar 

  • Cardell, R.R., Hisaw, F.L. and Dawson, A.B. (1969) The fine structure of granular cells in the uterine endometrium of the Rhesus monkey Macaca mulatta with a discussion of the possible function of these cells in relaxin secretion. American Journal of Anatomy, 124, 307–340.

    Article  PubMed  Google Scholar 

  • Carnegie, J.A., Chan, J.S.D., McCully, M.E., Robertson, H.A. and Friesen, H.G. (1982) The cellular localisation of chorionic somatomammo-tropin in ovine chorion. Journal of Reproduction and Fertility, 66, 9–16.

    Article  PubMed  CAS  Google Scholar 

  • Carpenter, S.J. (1972) Light and electron microscope observations on the morphology of the chorioallantoic placenta of the golden hamster (Cricetusa (ureatus)) Days 7 through 9 of gestation. American Journal of Anatomy, 135, 445–476.

    Article  PubMed  CAS  Google Scholar 

  • Carpenter, S.J. (1975) Ultrastructural observations on the maturation of the placental labyrinth of the Golden Hamster (Days 10-16 (term) of gestation). American Journal of Anatomy, 143, 315–348.

    Article  PubMed  CAS  Google Scholar 

  • Carpenter, S.J. (1982) Tropoblast invastion and alteration of maternal arteries in the pregnant hamster. Placenta, 3, 219–242.

    Article  PubMed  CAS  Google Scholar 

  • Carstensen, M., Leichtweiss, H.-P., Molsen, G. and Schrœr, H. (1977) Evidence for a specific transport of D-hexoses across the human term placenta in vitro. Archiv für Gynäkologie, 222, 187–196.

    Article  PubMed  CAS  Google Scholar 

  • Carter, A.M. (1975) Placental circulation, in Comparative Placentation: Essays in Structure and Function (ed. D.H. Steven), Academic Press, New York, pp. 108–160.

    Google Scholar 

  • Carter, A.M., Gothlin, J. and Olin, T. (1971) An angiographic study of the structure and function of uterine and maternal placental vasculature in the rabbit. Journal of Reproduction and Fertility, 25, 201–210.

    Article  PubMed  CAS  Google Scholar 

  • Casey, M.L., Winkel, C.A., Porter, J.C. and MacDonald, P.C. (1983) Endocrine regulation of the initiation of parturition. Clinics in Perinatology, 10, 709–712.

    PubMed  CAS  Google Scholar 

  • Casida, L.E. and Warwick, E.J. (1945) The necessity of the corpus luteum for maintenance of pregnancy in the ewe. Journal of Animal Science, 4, 34–36.

    Google Scholar 

  • Castellucci, M., Scheper, M., Scheffen, I., Celora, A. and Kaufmann, P. (1990) The development of the human placental villous tree. Anatomy and Embryology, 181, 117–128.

    Article  PubMed  CAS  Google Scholar 

  • Cate-Hoedemaker, N.J. (1933) Beitrage zur kennt-nis der plazentation bei Haien und Reptilien. Zeitschrift Zellforschung & Mikroskopisches Anatomie, 18, 299–345.

    Article  Google Scholar 

  • Challis, J.R.G., Dilley, S.R., Robinson, J.S. and Thorburn, G.D. (1976) Prostaglandins in the circulation of the foetal lamb. Prostaglandins, 11, 1041–1052.

    Article  PubMed  CAS  Google Scholar 

  • Chan, J.S.D., Robertson, H.A. and Friesen, H.G. (1978) Maternal and fetal concentrations of OPL measured by radioimmunoassay. Endocrinology, 102, 1606–1613.

    Article  PubMed  CAS  Google Scholar 

  • Chan, J.S.D., Nie, Z.-R., Seidah, N.G. and Chretien, M. (1986) Inhibition of binding of OPL to GH and PRL receptors by monoclonal antibodies. Endocrinology, 119, 2623–2628.

    Article  PubMed  CAS  Google Scholar 

  • Chan, J.S.D., Nie, Z.-R. and Pang, S.C. (1990) Cellular localisation of ovine placental lactogen using monoclonal antibodies. Animal Reproductive Science, 23, 33–40.

    Article  CAS  Google Scholar 

  • Chaouat, G. (1987) Placental immunoregulatory factors. Journal of Reproductive Immunology, 10, 179–188.

    Article  PubMed  CAS  Google Scholar 

  • Chatterjee, S., Hasrouni, S. and Lala, P.R. (1982) Localisation of paternal H2K antigens on murine trophoblast cells in vivo. Journal of Experimental Medicine, 155, 1679–1689.

    Article  Google Scholar 

  • Chavez, D.J. and Enders, A.C. (1982) Lectin binding of mouse blastocysts: appearance of Dolichos biflorus binding sites on the trophoblast during delayed implantation and their subsequent disappearance during implantation. Biology of Reproduction, 26, 545–552.

    Article  PubMed  CAS  Google Scholar 

  • Chen, T.T., Bazer, F.W., Gebhardt, B.M. and Roberts, R.M. (1975) Uterine secretion in mammals. Biology of Reproduction, 13, 304–313.

    Article  PubMed  CAS  Google Scholar 

  • Chêne, N., Martal, J. and Charrier, J. (1988) Ovine chorionic somatomammotropin and fetal growth. Reproduction Nutrition and Development, 28, 1707–1730.

    Article  Google Scholar 

  • Cherny, R.A. and Findlay, J.K. (1990) Separation and culture of endometrial epithelial and stromal cells: evidence of morphological and functional polarity. Biology of Reproduction, 43, 241–250.

    Article  PubMed  CAS  Google Scholar 

  • Christofferson, R.H. and Nillson, B.O. (1988) Morphology of the endometrial vasculature during early placentation in the rat. Cell and Tissue Research, 253, 209–220.

    Article  PubMed  CAS  Google Scholar 

  • Clark, D.A. (1985a) Maternofetal relations. Immunology Letters, 9, 239–247.

    Article  PubMed  CAS  Google Scholar 

  • Clark, D.A. (1985b) Prostaglandins and immunor-egulation during pregnancy. American Journal of Reproduction and Immunological Microbiology, 9, 111–112.

    CAS  Google Scholar 

  • Clark, D.A., Croy, B.A., Wegmann, T.G. and Chaouat, G. (1987) Immunological and para-immunological mechanisms in spontaneous abortion: recent insights and future directions. Journal of Reproductive Immunology, 12, 1–12.

    Article  PubMed  CAS  Google Scholar 

  • Clark, D.A., Slapsys, R., Croy, B.A., Krcek, J. and Rossant, J. (1984) Local active suppression by suppressor cells in the decidua: a review. American Journal of Reproduction and Immunological Microbiology, 5, 78–83.

    CAS  Google Scholar 

  • Clark, D.A., Slapsys, R., Chaput, A., Walker, C., Brierley, J., Daya, S. and Rosenthal, K.L. (1986) Immunoregulatory molecules of trophoblast and decidual suppressor cell origin at the mater-nofetal interface. American Journal of Reproduction and Immunological Microbiology, 10, 100–104.

    CAS  Google Scholar 

  • Clutton-Brock, T.H. (1991) The Evolution of Parental Care: Monographs in Behavior and Ecology (eds J.R. Krebs and T.H. Clutton-Brock), Princeton University Press, Princeton, New Jersey.

    Google Scholar 

  • Coceani, F., Olley, P.M., Bisha, I., Bodach, E. and White, E.P. (1978) Significance of the prosta-glandin system to the control of muscle tone of the ductus arteriosus. Advances in Prostaglandin and Thromboxane Research, 4, 325–333.

    PubMed  CAS  Google Scholar 

  • Colbern, C.T. and Main, E.K. (1991) Immunology of the maternal placental interface in normal pregnancy. Seminars in Perinatology, 15, 196–205.

    PubMed  CAS  Google Scholar 

  • Cole, W.C. and Garfield, R.E. (1989) Ultra-structure of the myometrium, in Biology of the Uterus, 2nd edn, Chapter 15 (eds R.M. Wynn and W.P. Jollie), Plenum, New York, pp. 455–504.

    Chapter  Google Scholar 

  • Colosi, P., Ogren, L., Thordarson, G. and Talamantes, F. (1987) Purification and partial characterisation of two prolactin like glyco-protein hormone complexes from the mid pregnant mouse conceptus. Endocrinology, 120, 2500–2511.

    Article  PubMed  CAS  Google Scholar 

  • Colosi, P., Thordarson, G., Hellmiss, R., Singh, K., Forsyth, I.A., Gluckman, P. and Wood, W.I. (1989) Cloning and expression of ovine placental lactogen. Molecular Endocrinology, 3, 1462–1469.

    Article  PubMed  CAS  Google Scholar 

  • Comline, R.S. and Silver, M. (1976) Some aspects of foetal and utero-placental metabolism in cows with indwelling vascular catheters. Journal of Physiology, London, 260, 571–586.

    CAS  Google Scholar 

  • Concannon, P.W., McCann, J.P. and Hemp, E.M. (1989) Biology and endocrinology of ovulation pregnancy and parturition in the dog. Journal of Reproduction and Fertility, Suppl. 39, 3–25.

    PubMed  CAS  Google Scholar 

  • Contractor, S.F. (1983) Metabolic and enzymatic activity of the human trophoblast, in Biology of Trophoblast (eds C. Loke and A. Whyte), Elsevier, Amsterdam, pp. 236–282.

    Google Scholar 

  • Covone, A.E., Johnson, P.M., Mutton, D. and Adinolfi, M. (1984) Trophoblast cells in peripheral blood from pregnant women. Lancet, ii, 841–843.

    Article  Google Scholar 

  • Cowie, A.T., Daniel, P.M., Prichard, M.M.L. and Tindal, J.S. (1963) Hypophysectomy in pregnant goats and section of the pituitary stalk in pregnant goats and sheep. Journal of Endocrinology, 28, 93–102.

    Article  PubMed  CAS  Google Scholar 

  • Crawford, R.J., Tregear, G.W. and Niall, H.D. (1986) The nucleotide sequences of baboon chorionic gonadotropin β-subunit genes have diverged from the human. Gene, 46, 161–169.

    Article  PubMed  CAS  Google Scholar 

  • Crepeau, M.A., Yamashito, S. and Croy, B.A. (1989) Morphological demonstration of the failure of Mus caroli trophoblast in the Mus muscu-lus uterus. Journal of Reproduction and Fertility, 86, 277–288.

    Article  PubMed  CAS  Google Scholar 

  • Crews, D. (1992) Chemical communication — The language of pheromones. Nature, 359, 492.

    Article  Google Scholar 

  • Critchley, G.R. and Burton, G.J. (1987) Intra-lobular variation in barrier thickness in the mature human placenta. Placenta, 8, 185–194.

    Article  PubMed  CAS  Google Scholar 

  • Crombie, P.R. (1972) The morphology and ultra-structure of the pig’s placenta throughout pregnancy. PhD thesis, University of Cambridge.

    Google Scholar 

  • Cross, J.C. and Roberts, R.M. (1989) Porcine con-ceptuses secrete an interferon during the pre-attachment period of early pregnancy. Biology of Reproduction, 40, 1109–1118.

    Article  PubMed  CAS  Google Scholar 

  • Croy, B.A. and Chapeau, C. (1990) Evaluation of pregnancy immunotrophism hypothesis by assessment of the reproductive performance of young adult mice of genotype scid, scid bg/bg. Journal of Reproduction and Fertility, 88, 231–239.

    Article  PubMed  CAS  Google Scholar 

  • Croy, B.A. and Kassorf, S.A. (1989) Evaluation of the murine metrial gland for immunological function. Journal of Reproductive Immunology, 15, 51–70.

    Article  PubMed  CAS  Google Scholar 

  • Croy, B.A., Rossant, J. and Clark, D.A. (1982) Histological and immunological studies of post-implantation death of Mus caroli embryos in the Mus musculus uterus. Journal of Reproduction and Immunology, 4, 277–293.

    Article  CAS  Google Scholar 

  • Croy, B.A., Gambel, P., Rossant, J. and Wegmann, T.G. (1985) Characterisation of murine decidual NK cells and their relevance to the success of pregnancy. Cellular Immunology, 93, 315–326.

    Article  PubMed  CAS  Google Scholar 

  • Crump, A., Donaldson, W.L., Miller, J., Kydd, J.H., Allen, W.R. and Antczak, D. F. (1987) Expression of MHC antigens on horse tropho-blast. Journal of Reproduction and Fertility, Suppl. 35, 379–388.

    PubMed  CAS  Google Scholar 

  • Csapo, A.I. (1977) The’ see-saw’ theory of parturition, in The Fetus and Birth (eds J. Knight and M. O’Connor), Ciba Foundation Symposium, No. 47 (New Series), Elsevier, Amsterdam, pp. 159–195.

    Google Scholar 

  • Csapo, A.I. and Corner, G.W. (1952) The antagonistic effects of estrogen and progesterone on the staircase phenomenon in uterine muscle. Endocrinology, 51, 378–385.

    Article  PubMed  CAS  Google Scholar 

  • Cukierski, M.A. (1987) Synthesis and transport studies of the intrasyncytial lamina: an unusual placental basement membrane in the little brown bat Myotis lucifugus. American Journal of Anatomy, 178, 387–409.

    Article  PubMed  CAS  Google Scholar 

  • Currie, W.B., Card, C.E., Michel, F.J. and Ignotz, G. (1990) Purification, partial characterisation and development of a specific RIA for goat placental lactogen. Journal of Reproduction and Fertility, 90, 25–36.

    Article  PubMed  CAS  Google Scholar 

  • Dallenbach-Hellweg, G. (1967) Endometrial gra-nulocytes and implantation. Excerpta Medica International Congress, Series 133, 411-418.

    Google Scholar 

  • Dallenbach-Hellweg, G. (1981) Histopathology of the Endometrium, Springer, Berlin.

    Book  Google Scholar 

  • Dantzer, V. (1985) Electron microscopy of the initial stages of placentation in the pig. Anatomy and Embryology, 172, 281–293.

    Article  PubMed  CAS  Google Scholar 

  • Dantzer, V., Bjorkman, N. and Hasselager, E. (1981) An electron microscopic study of histo-trophe in the interareolar part of the porcine placenta. Placenta, 21, 19–28.

    Article  Google Scholar 

  • Davies, J. and Davenport, G.R. (1979) Symplasma formation and decidualisation in the pseudo-pregnant rabbit after intraluminal instillation of tricaprylin. Journal of Reproduction and Fertility, 55, 141–145.

    Article  PubMed  CAS  Google Scholar 

  • Davies, J. and Glasser, S.R. (1968) Histological and fine structural observations on the placenta of the rat. I. Organisation of the normal placenta. II. Changes after surgical removal of the fetus. Acta Anatomica, 69, 542–608.

    Article  PubMed  CAS  Google Scholar 

  • Davies, J. and Hoffman, L.H. (1975) Studies on the progestational endometrium of the rabbit. II. Electron microscopy day 0 to day 13 of gonado-trophin induced pseudopregnancy. American Journal of Anatomy, 142, 335–366.

    Article  PubMed  CAS  Google Scholar 

  • Davies, J., Dempsey, E.W. and Amoroso, E.C. (1961a) The subplacenta of the guinea pig: an electronmicroscope study. Journal of Anatomy, 95, 311–324.

    PubMed  CAS  Google Scholar 

  • Davies, J., Dempsey, E.W. and Amoroso, E.C. (1961b) The subplacenta of the guinea pig: development, histology and histochemistry. Journal of Anatomy, 95, 457–473.

    PubMed  CAS  Google Scholar 

  • Dawes, G.S. (1968) Foetal and neonatal physiology: a comparative study of the changes at birth. Year Book Medical Publishers, Chicago.

    Google Scholar 

  • Daya, S., Clark, D.A., Derlin, C. and Javrell, J. (1985) Preliminary characterisation of two types of suppressor cells in the human uterus. Fertility and Sterility, 44, 778–785.

    PubMed  CAS  Google Scholar 

  • De, M., Sandford, T.R. and Wood, G.W. (1993) Expression of IL1, 6 and TNFα in the mouse uterus during the peri-implantation period and pregnancy. Journal of Reproduction and Fertility, 97, 83–89.

    Article  PubMed  CAS  Google Scholar 

  • Deane, H.W., Rubin, B.L., Driks, E.C, Lobel, B.L. and Leipsner, G. (1962) Trophoblast giant cells in placentas of rats and mice and their probable role in steroid hormone production. Endocrinology, 70, 407–419.

    Article  PubMed  CAS  Google Scholar 

  • Del Pino, E.M., Galarza, M.L., DeAlbuja, CM. and Humphries, A.A. (1975) The maternal pouch and development in the marsupial frog Gastrotheca riobambae. Biological Bulletin, 149, 480–491.

    Article  Google Scholar 

  • Dempsey, E.W. (1969) Comparative aspects of the placentae of certain African mammals. Journal of Reproduction and Fertility, 6, 189–192.

    Google Scholar 

  • Denamur, R. and Martinet, J. (1955) Effets de l’ovariectomie chez la brebis pendant la gestation. Comptes Rendus des Seances Societe de Biologie, Paris 149, 2105–2107.

    CAS  Google Scholar 

  • Denker, H.W. (1978) Role of trophoblastic factors in implantation, in Novel Aspects of Reproductive Physiology (eds C.H. Spilman and J.W. Wilks), Spectrum, New York. 181–182.

    Google Scholar 

  • Denker, H.W. (1993) Implantation: a cell biological paradox. Journal of Experimental Zoology, 266, 541–558.

    Article  PubMed  CAS  Google Scholar 

  • Denker, H.W. and Tyndale-Biscoe, CH. (1986) Embryonic implantation and proteinase activity in a marsupial (Macropus eugenii) histochemical patterns. Cell and Tissue Research, 246, 279–291.

    Article  PubMed  Google Scholar 

  • Denker, H.W., Eng, L.W. and Hamner, C.E. (1978) Studies on the early development and implantation in the cat. II. Implantation processes. Anatomy and Embryology, 54, 39–54.

    Article  Google Scholar 

  • Diczfalusy, E. and Trën, P. (1961) Endocrine functions of the human placenta. Vitamins and Hormones, 19, 229–250.

    Article  CAS  Google Scholar 

  • Dobashi, K., Ajika, K., Kambegawa, A. and Arai, K. (1985) Localisation and distribution of uncon-jugated steroid hormones in the normal placenta at term. Placenta, 6, 445–454.

    Article  PubMed  CAS  Google Scholar 

  • Donaldson, W.L., Zhang, G.H., Oriol, J.G. and Antczak, D.F. (1990) Invasive equine tropho-blast expresses conventional class I MHC antigens. Development, 110, 63–71.

    PubMed  CAS  Google Scholar 

  • Donaldson, W.L., Oriol, J.G., Plavin, A. and Antczak, D.F. (1992) Developmental regulation of class I MHC antigen expression by equine trophoblast cells. Differentiation, 52, 69–78.

    Article  PubMed  CAS  Google Scholar 

  • Dracopoli, N.C., Rettig, W.J., Whitfield, G.K., Darlington, G.R., Spengler, B.A., Biedler, J.L., Old, L.J. and Kouridea, I.A. (1986) Assignment of the gene for the β subunit of thyroid-stimulating hormone to the short arm of human chromosome 1. Proceedings of the National Academy of Sciences of the USA, 83, 1822–1826.

    Article  PubMed  CAS  Google Scholar 

  • Dresser, B.L., Pope, C.E., Kramer, L., Kuehn, G., Dahlhassen, R.D., Maruska, E.J., Reece, B. and Thomas, W.D. (1985) Birth of bongo antelope (Tragelaphus euryceros) to eland antelope (Tragela-phus oryx) and cryopreservation of bongo embryos (abstract). Theriogenology, 23, 190.

    Article  Google Scholar 

  • Drieux, H. and Thiery, G. (1951) La placentation chez Mammifères domestiques. III. Placenta des Bovides. Recueil de Médecin Vétérinaire, 127, 5–25.

    CAS  Google Scholar 

  • Drummond-Robinson, G. and Asdell, S.A. (1926) The relation between the corpus luteum and the mammary gland. Journal of Physiology, London, 61, 608–614.

    CAS  Google Scholar 

  • Duckworth, M.L., Schroedter, I.C. and Friesen, H.G. (1990) Cellular localisation of rat placental lactogen II and rat prolactin like proteins A and B by in situ hybridisation. Placenta, 11, 143–155.

    Article  PubMed  CAS  Google Scholar 

  • Duello, T.M., Byatt, J.C. and Bremel, R.D. (1986) Immunohistochemical localisation of placental lactogen in binucleate cells of bovine placen-tomes. Endocrinology, 119, 1351–1355.

    Article  PubMed  CAS  Google Scholar 

  • Du Mesnil Du Buisson, F. and Dauzier, L. (1957) Influence de l’ovariectomie chez la Tunie pendant 1a gestation. Comptes Rendus des Séances Sociétiéde Biologie, Paris, 151, 311–313.

    CAS  Google Scholar 

  • Durrant, B. and Benirschke, K. (1981) Embryo transfer in exotic animals. Theriogenology, 15, 77–83.

    Article  PubMed  CAS  Google Scholar 

  • Dziuk, P.J., Polge, C. and Rowson, L.E. (1964) Intrauterine migration and mixing of embryos in swine following egg transfer. Journal of Animal Science, 23, 37–42.

    Google Scholar 

  • Edson, J.L., Hudson, D.G. and Hull, D. (1975) Evidence for increased fatty acid transfer across the placenta during a maternal fast in rabbits. Biology of the Neonate, 27, 50–55.

    Article  PubMed  CAS  Google Scholar 

  • Edwards, D., Jones, C.J.P., Sibley, C.P. and Nelson, D.M. (1993) Paracellular permeability pathways in the human placenta: a quantitative and morphometric study of maternofetal transfer of HRP. Placenta, 14, 63–73.

    Article  PubMed  CAS  Google Scholar 

  • Elcock, J.M. and Searle, R.F. (1985) Antigen presenting capacity of mouse decidual tissue and placenta. American Journal of Reproductive Immunology, 7, 99–103.

    CAS  Google Scholar 

  • Ellington, S.K.L. (1985) A morphological study of the development of the allantois of rat embryos in vivo. Journal of Anatomy, 142, 1–11.

    PubMed  CAS  Google Scholar 

  • Ellington, S.K.L. (1987) A morphological study of the development of the chorion of rat embryos. Journal of Anatomy, 150, 247–263.

    PubMed  CAS  Google Scholar 

  • Elphick, M.C., Hull, D. and Broughton-Pipkin, F. (1979) The transfer of fatty acids across the sheep placenta. Journal of Developmental Physiology, 1, 31–45.

    PubMed  CAS  Google Scholar 

  • Emane, M.N., Delouis, C., Kelly, P.A. and Djiane, J. (1986) Evolution of PRL and PL receptors in ewes during pregnancy and lactation. Endocrinology, 118, 695–704.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. (1965) A comparative study of the fine structure of the trophoblast in hemochorial placentas. American Journal of Anatomy, 116, 29–68.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. (1982) Whither studies of placental morphology. Journal of Reproduction and Fertility, 31, 9–15.

    PubMed  CAS  Google Scholar 

  • Enders, A.C. (1989) Trophoblast differentiation during the transition from trophoblast plate to lacunar stage of implantation in the rhesus monkey and human. American Journal of Anatomy, 186, 85–98.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. (1991) Structural responses of the primate endometrium to implantation. Placenta, 12, 309–325.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Enders, R.K. (1969) The placenta of the four eyed opossum (Philander opossum). Anatomical Record, 165, 431–450.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Given, R.L. (1977) The endometrium of delayed and early implantation, in Biology of the Uterus (ed. R.M. Wynn), Plenum, New York, 203–238.

    Chapter  Google Scholar 

  • Enders, A.C. and King, B.F. (1991) Early stages of trophoblast invasion of the maternal vascular system during implantation in the macaque and baboon. American Journal of Anatomy, 192, 329–346.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Liu, I.K.M. (1991a) Lodgement of the equine blastocyst in the uterus from fixation through endometrial cup formation. Journal of Reproduction and Fertility, Suppl. 44, 427–438.

    PubMed  CAS  Google Scholar 

  • Enders, A.C. and Liu, I.K.M. (1991b) Trophoblast-uterine interactions during equine chorionic girdle cell maturation migration and transformation. American Journal of Anatomy, 192, 366–381.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Schlafke, S. (1969) Cytological aspects of trophoblast-uterine interaction in early implantation. American Journal of Anatomy, 125, 1–30.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Schlafke, S. (1971a) Implantation in the ferret: epithelial penetration. American Journal of Anatomy, 291-316.

    Google Scholar 

  • Enders, A.C. and Schlafke, S. (1971b) Penetration of the uterine epithelium during implantation in the rabbit. American Journal of Anatomy, 132, 219–240.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Welsh, A.O. (1993) Structural interactions of trophoblast and uterus during hemochorial placenta formation. Journal of Experimental Zoology, 266, 578–587.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Wimsatt, W. A. (1968) Formation and structure of the hemodichorial chorioallan-toic placenta of the bat (Myotis lucifugus Inc.). American Journal of Anatomy, 122, 453–463.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C. and Wimsatt, W.A. (1971) Transport and barrier function in the chorioallantoic placenta of the bat, Myotis lucifugus. Anatomical Record, 170, 381–400.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C., Schlafke, S. and Welsh, A.O. (1980) Trophoblastic and uterine luminal epithelial surfaces at the time of blastocyst adhesion in the rat. American Journal of Anatomy, 159, 59–72.

    Article  PubMed  CAS  Google Scholar 

  • Enders, A.C., Welsh, A.O. and Schlafke, S. (1985) Implantation in the rhesus monkey: endometrial responses. American Journal of Anatomy, 173, 147–169.

    Article  PubMed  CAS  Google Scholar 

  • Faria, T.N., Deb, S., Kwok, S.C.M., Talamantes, F. and Soares, M.J. (1990) Ontogeny of placental lactogens and placental lactogen II expression in the developing rat placenta. Developmental Biology, 141, 279–291.

    Article  PubMed  CAS  Google Scholar 

  • Farin, C.E., Imakawa, K. and Roberts, R.M. (1989) In situ localisation of mRNA for the IFN OTP-1 during early embryonic development in the sheep. Molecular Endocrinology, 3, 1099–1107.

    Article  PubMed  CAS  Google Scholar 

  • Farin, C.E., Imakawa, K., Hansen, T.R., McDonnell, J.J., Murphy, C.N., Farin, P.W. and Roberts, R.M. (1990) Expression of trophoblast interferon genes in sheep and cattle. Biology of Reproduction, 43, 210–218.

    Article  PubMed  CAS  Google Scholar 

  • Farkash, Y., Timberg, R. and Orly, J. (1986) Preparation of an antiserum to rat cytochrome P450 cholesterol side chain cleavage enzyme and its use for ultrastructural localisation of the immunoreactive enzyme by protein A gold technique. Endocrinology, 118, 1353–1365.

    Article  PubMed  CAS  Google Scholar 

  • Fatemi, S.H. (1987) The role of secretory granules in the transport of basement membrane components: ARG studies of rat parietal yolk sac employing 3H proline as a precursor of type IV collagen. Connective Tissue Research, 16, 1–14.

    Article  PubMed  CAS  Google Scholar 

  • Faulk, W.P. and Hsi, B.L. (1983) Immunobiology of human trophoblast membrane antigens, in Biology of Trophoblast, (eds C. Loke and A. Whyte), Elsevier, Amsterdam, pp. 535–565.

    Google Scholar 

  • Faulk, W.P. and McIntyre, J.A. (1983) Immunological studies of human trophoblast: markers, subsets and functions. Immunological Reviews, 75, 139–175.

    Article  PubMed  CAS  Google Scholar 

  • Fehilly, C.B., Willadsen, S.M. and Tucker, E.M. (1984) Interspecific chimaerism between sheep and goat. Nature, 307, 634–636.

    Article  PubMed  CAS  Google Scholar 

  • Ferguson, M.M. and Christie, G.A. (1967) Distribution of hydroxysteroid dehydrogenase in the placental and foetal membranes of various mammals. Journal of Endocrinology, 38, 291–306.

    Article  PubMed  CAS  Google Scholar 

  • Ferry, B.L., Starkey, P.M., Sargent, I.L., Watt, G.M.O., Jackson, M. and Redman, C.W.G. (1990) Cell populations in the human early pregnancy decidua: NK activity and response to interleukin 2 of CD56 positive large granular lymphocytes. Immunology, 70, 446–452.

    PubMed  CAS  Google Scholar 

  • Fincher, K.B., Bazer, F.W., Hansen, P.J., Thatcher, W.W. and Roberts, R.M. (1986) Proteins secreted by the sheep conceptus suppress induction of uterine PGF2&#03B1 release by oes-tradiol and oxytocin. Journal of Reproduction and Fertility, 76, 425–433.

    Article  PubMed  CAS  Google Scholar 

  • Finn, C.A. (1986) Implantation, menstruation and inflammation. Biological Reviews, 61, 313–328.

    Article  PubMed  CAS  Google Scholar 

  • Finn, C.A. and Bredl, J.C.S. (1973) Studies on the development of the implantation reaction in the mouse uterus: Influence of actinomycin D. Journal of Reproduction and Fertility, 34, 247–253.

    Article  PubMed  CAS  Google Scholar 

  • Finn, C.A. and Porter, D.G. (1975) The Uterus, Handbooks in Reproductive Biology, Vol. 1, Elek Science, London.

    Google Scholar 

  • First, N.L. and Bosc, M.J. (1979) Proposed mechanisms controlling parturition and the induction of parturition in swine. Journal of Animal Science, 48, 1407–1421.

    PubMed  CAS  Google Scholar 

  • First, N.L. and Staigmiller, R.B. (1973) Effects of ovariectomy, dexamethasone and progesterone on the maintenance of pregnancy in swine. Journal of Animal Science, 37, 1191–1194.

    PubMed  CAS  Google Scholar 

  • Firth, J.A., Sibley, C.P. and Ward, B.S. (1986a) Histochemical localisation of phosphatases in the pig placenta. I. Nonspecific phosphatases and their relation to uteroferrin. Placenta, 7, 17–25.

    Article  PubMed  CAS  Google Scholar 

  • Firth, J.A., Sibley, C.P. and Ward, B.S. (1986b) Histochemical localisation of phosphatases in the pig placenta. II. Potassium dependent and potassium independent paranitrophenylphos-phatases at high pH: relationship to sodium dependent ATP’ase. Placenta, 7, 26–36.

    Google Scholar 

  • Fisher, D. A. (1986) The unique endocrine milieu of the fetus. Journal of Clinical Investigation, 78, 603–611.

    Article  PubMed  CAS  Google Scholar 

  • Fischer, T.V. (1971) Placentation in the American beaver (Castor canadensis). American Journal of Anatomy, 131, 159–184.

    Article  PubMed  CAS  Google Scholar 

  • Fischer, T.V. and Mossman, H.W. (1969) The fetal membranes of Pedetes capensis and their taxo-nomic significance. American Journal of Anatomy, 124, 89–116.

    Article  PubMed  CAS  Google Scholar 

  • Flint, A.P.F. (1983) Controlling placental endocrine function in domestic animals. Current Topics in Experimental Endocrinology, 5, 75–95.

    CAS  Google Scholar 

  • Flint, A.P.F. and Burton, R.D. (1984) Properties and ontogeny of the glucocorticoid receptor in the placenta and fetal lung of the sheep. Journal of Endocrinology, 103, 31–42.

    Article  PubMed  CAS  Google Scholar 

  • Flint, A.P.F., Kingston, E.J., Robinson, J.S. and Thorburn, G.D. (1978) Initiation of parturition in the goat: evidence for control by foetal glucocorticoid through activation of placental C21-steroid 17α-hydroxylase. Journal of Endocrinology, 78, 367–378.

    Article  PubMed  CAS  Google Scholar 

  • Flint, A.P.F., Henville, A. and Christie, W.B. (1979) Presence of placental lactogen in bovine conceptuses before attachment. Journal of Reproduction and Fertility, 56, 305–308.

    Article  PubMed  CAS  Google Scholar 

  • Flint, A.P.F., Burton, R.D. and Heap, R.B. (1983) Sources of progesterone during gestation in Barbary sheep (Ammotragus lervia). Journal of Endocrinology, 98, 283–288.

    Article  PubMed  CAS  Google Scholar 

  • Folkart, G.R., Dancis, J. and Money, W.L. (1960) Transfer of carbohydrates across guinea-pig placenta. American Journal of Obstetrics and Gynecology, 80, 221–223.

    PubMed  CAS  Google Scholar 

  • Ford, S.P., Weber, L.J. and Stormshak, F. (1977) Role of estradiol-17β and progesterone in regulating constriction of ovine uterine arteries. Biology of Reproduction, 17, 480–483.

    Article  PubMed  CAS  Google Scholar 

  • Forsyth, I.A. (1986) Variation among species in the endocrine control of mammary gland growth and function: Structure of PRL, GH and PL. Journal of Dairy Science, 69, 886–903.

    Article  PubMed  CAS  Google Scholar 

  • Forsyth, I.A. (1991) The biology of the placental PRL/GH family. Oxford Reviews of Reproductive Biology, 13, 97–148.

    PubMed  CAS  Google Scholar 

  • Fraser, E.A. and Renton, R.M. (1940) Observations on the breeding and development of the viviparous fish Heterandria formosa. Quarterly Journal of Microscopical Science, 81, 479–520.

    Google Scholar 

  • Freemark, M. and Handwerger, S. (1986) The gly-cogenic effects of PL and GH in ovine fetal liver are mediated through binding to specific fetal OPL receptors. Endocrinology, 118, 613–618.

    Article  PubMed  CAS  Google Scholar 

  • Freemark, M., Cromer, M., Korner, G. and Handwerger, S. (1987) A unique placental lactogen receptor: implications for fetal growth. Endocrinology, 120, 1865–1872.

    Article  PubMed  CAS  Google Scholar 

  • Friess, A.E., Sinowatz, F., Skolek-Winnischen, R. and Trautner, W. (1981) The placenta of the pig. II. the ultrastructure of the areolae. Anatomy and Embryology, 163, 43–53.

    Article  PubMed  CAS  Google Scholar 

  • Fuchs, A.R., Helmer, H., Chang, S.M. and Fields, M.J. (1992) Concentration of OT receptors in the placenta and fetal membranes of cows during pregnancy and labour. Journal of Reproduction and Fertility, 96, 775–783.

    Article  PubMed  CAS  Google Scholar 

  • Fujimoto, S., Hamasaki, K., Ueda, H. and Kagawa, H. (1986) Immunoelectronmicroscope observations on secretion of HPL in the human chorionic villi. Anatomical Record, 216, 68–72.

    Article  PubMed  CAS  Google Scholar 

  • Galton, M. (1962) DNA content of placental nuclei. Journal of Cell Biology, 13, 183–191.

    Article  PubMed  CAS  Google Scholar 

  • Gambel, P., Rossant, J., Hunziker, R.D. and Wegmann, T. (1985) Origin of decidual cells in murine pregnancy and pseudopregnancy. Transplantation, 39, 443–445.

    Article  PubMed  CAS  Google Scholar 

  • Gardner, R. (1975) Origins and properties of tro-phoblast, in Immunology of Trophoblast (eds. R.G. Edwards, C.W.S. Howe and M.H. Johnson), Cambridge University Press, Cambridge, pp. 43–61.

    Google Scholar 

  • Garfield, R.F., Robideau, S., Challis, J.R.G. and Daniel, E.E. (1979) Hormonal control of gap junction formation in sheep myometrium during parturition. Biology of Reproduction, 21, 999–1007.

    Article  PubMed  CAS  Google Scholar 

  • Garfield, R.E., Blennerhassett, M.G. and Miller, S.M. (1988) Control of myometrial contractility: role and regulation of gap junctions. Oxford Review of Reproductive Biology, 10, 436–490.

    CAS  Google Scholar 

  • Geier, G., Schuhmann, R. and Kraus, H. (1975) Regionale unterschiedliche Zeilproliferation innerhalb der Plazentome reifer menschlicher Plazenten. Archiv Gynakologie, 218, 31–37.

    Article  CAS  Google Scholar 

  • Geisert, R.D., Renegar, R.H., Thatcher, W.W., Roberts, R.M. and Bazer, F.W. (1982a) Establishment of pregnancy in the pig. I. Interrelationship between pre-implantation development of the pig blastocyst and uterine endometrial secretions. Biology of Reproduction, 27, 925–939.

    Article  PubMed  CAS  Google Scholar 

  • Geisert, R.D., Brookbank, J.W., Roberts, R.M. and Bazer, F. W. (1982b) Establishment of pregnancy in the pig. II. Cellular remodelling of the porcine blastocyst during elongation on day 12 of pregnancy. Biology of Reproduction, 27, 941–955.

    Article  PubMed  CAS  Google Scholar 

  • Geisert, R.D., Thatcher, W.W., Robert, R.M. and Bazer, F.W. (1982c) Establishment of pregnancy in the pig. III. Endometrial secretory response to estradiol administration on day 11 of the estrous cycle. Biology of Reproduction, 27, 957–965.

    Article  PubMed  CAS  Google Scholar 

  • Geisert, R.D., Lee, C.L., Simmen, F.A., Zavi, M.T., Fliss, A.E., Bazer, F.W. and Simmen, R.C.M. (1991) Expression of mRNAs encoding IGFI and II and IGFBP2 in bovine endometrium during the estrus cycle and early pregnancy. Biology of Reproduction, 45, 975–983.

    Article  PubMed  CAS  Google Scholar 

  • Gibori, G., Ralison, B., Basuray, R., Rowe, M.C., Hunzicker, B. and Dunn, M. (1984) Endocrine role of the decidual tissue: Decidual and luteo-trophic regulation of luteal and cyclase activity, luteal hormone receptors and steroidogenesis. Endocrinology, 115, 1153–1157.

    Article  Google Scholar 

  • Gill, T.A. and Wegmann, T.G. (1987) Immuno-regulation and Fetal Survival, Oxford University Press.

    Google Scholar 

  • Ginther, OJ. (1979) Reproductive Biology of the Mare (privately published book). 4343 Garfoot Rd Cross Plains, Wisconsin 53528, USA.

    Google Scholar 

  • Ginther, OJ. (1983) Mobility of early equine con-ceptus. Theriogenology, 19, 603–610.

    Article  PubMed  CAS  Google Scholar 

  • Ginther, O.J. (1984a) Mobility of twin embryonic vesicles in mares. Theriogenology, 22, 83–95.

    Article  PubMed  CAS  Google Scholar 

  • Ginther, O.J. (1984b) Intrauterine movement of the early conceptus in barren and postpartum mares. Theriogenology, 21, 633–644.

    Article  PubMed  CAS  Google Scholar 

  • Ginther, O.J. (1989) The nature of embryo reduction in mares with twin conceptuses: deprivation hypothesis. American Journal of Veterinary Research, 50, 45–52.

    PubMed  CAS  Google Scholar 

  • Given, R.L. and Enders, A.C. (1989) The endometrium of delayed and early implantation, in Biology of the Uterus, 2nd edn, Chapter 8 (eds R.M. Wynn and W.P. Jollie), Plenum Medical, New York, pp. 175–231.

    Chapter  Google Scholar 

  • Glasser, S.R. (1990) Biochemical and structural changes in uterine endometrial cell types following natural or artificial deciduogenic stimuli. Trophoblast Research, 4, 377–416.

    CAS  Google Scholar 

  • Glasser, S.R. and McCormack, S.A. (1980) Functional development of rat trophoblast and decidual cells during establishment of the hemo-chorial placenta. Advances in Bioscience, 25, 165–198.

    CAS  Google Scholar 

  • Gluckman, P.D., Breier, B.H. and Davis, J.R. (1987) Physiology of the somatotropic axis with particular reference to the ruminant. Journal of Dairy Science, 70, 442–466.

    Article  PubMed  CAS  Google Scholar 

  • Godkin, J.D., Bazer, F.W. and Roberts, R.M. (1984a) Ovine trophoblast protein 1, an early secreted blastocyst protein, binds specifically to uterine endometrium and affects protein synthesis. Endocrinology, 114, 120–129.

    Article  PubMed  CAS  Google Scholar 

  • Godkin, J.D., Bazer, F.W., Thatcher, W.W. and Roberts, R.M. (1984b) Proteins released by cultured day 15-16 conceptuses prolong luteal maintenance when introduced into the uterine lumen of cyclic ewes. Journal of Reproduction and Fertility, 71, 57–64.

    Article  PubMed  CAS  Google Scholar 

  • Goldstein, S.R. (1926) A note on the vascular relations and areolae in the placenta of the pig. Anatomical Record, 34, 25–33.

    Article  Google Scholar 

  • Gopalakrishna, A. and Karim, K.B. (1979) Fetal membranes and placentation in Chiroptera. Journal of Reproduction and Fertility, 56, 417–429.

    Article  PubMed  CAS  Google Scholar 

  • Gosseye, S. and Fox, H. (1984) An immunohistolo-gical comparison of the secretory capacity of villous and extravillous trophoblast in the human placenta. Placenta, 5, 329–348.

    Article  PubMed  CAS  Google Scholar 

  • Grandis, A.S. and Handwerger, S. (1983) Differential effects of ornithine on placental lactogen and GH secretion. Journal of Endocrinology, 97, 175–178.

    Article  PubMed  CAS  Google Scholar 

  • Gray, A.P. (1971) Mammalian Hybrids. Commonwealth Agricultural Bureau, Farnham Royal, Slough, UK, pp. 262.

    Google Scholar 

  • Greenstein, J.S., Murray, R.W. and Foley, R.C. (1958) Observations on the morphogenesis and histochemistry of the bovine preattachment placenta between 16 and 33 days of gestation. Anatomical Record, 132, 321–325.

    Article  PubMed  CAS  Google Scholar 

  • Greiss, F.C. (1966) Pressure-flow relationship in the gravid uterine vascular bed. American Journal of Obstetrics and Gynecology, 96, 41–47.

    PubMed  Google Scholar 

  • Greiss, F.C. and Anderson, S.G. (1970) Effect of ovarian hormones on the uterine vascular bed. American Journal of Obstetrics and Gynecology, 107, 829–836.

    PubMed  CAS  Google Scholar 

  • Gresham, E.L., James, E.J., Raye, J.R., Battaglia, F.C, Makowski, E.L. and Meschia, G. (1972) Production and excretion of urea by the foetal lamb. Pediatrics, 50, 372–379.

    PubMed  CAS  Google Scholar 

  • Gross, T.S., Williams, W.F. and Russek-Cohen, E. (1991) Cellular changes in the peripartum bovine fetal placenta related to placental separation. Placenta, 12, 27–35.

    Article  PubMed  CAS  Google Scholar 

  • Grove, B.D. and Wourms, J.P. (1991) The follicular placenta of the viviparous fish Heterandria for-mosa. 1. Ultrastructure and development of the embryonic absorptive surface. Journal of Morphology, 209, 265–284.

    Article  Google Scholar 

  • Gruenwald, P. (1973) Lobular structure of hemo-chorial primate placentas and its relationship to maternal vessels. American Journal of Anatomy, 136, 133–152.

    Article  PubMed  CAS  Google Scholar 

  • Grunert, E. (1986) Etiology and pathology of retained bovine placenta, in Current Therapy in Theriogenology (ed. D.A. Morrow) W.B. Saunders, London, 2, pp. 237–242.

    Google Scholar 

  • Guillette, L.J. (1981) On the occurrence of oviparous and viviparous forms of the Mexican lizard Sceloporus aeneus. Herpetologica, 37, 11–15.

    Google Scholar 

  • Guillette, L.J. (1982) The evolution of viviparity and placentation in the high elevation Mexican lizard Sceloporus aeneus. Herpetologica, 38, 94–103.

    Google Scholar 

  • Guillette, L.J., Lavia, L.A., Walker, N.J. and Roberts, D.K. (1984) Luteolysis induced by pros-taglandin F2α in the lizard, Anolis carolinensis. General and Comparative Endocrinology, 56, 271–277.

    Article  PubMed  CAS  Google Scholar 

  • Guillette, L.J., Herman, C.A. and Dickey, D.A. (1988) Synthesis of prostaglandin by tissues of the viviparous lizard, Sceloporus aeneus. Journal of Herpetology, 22, 180–185.

    Article  Google Scholar 

  • Guillette, L.J. (1991) The evolution of viviparity in aminote vertebrates — new insights, new questions. Journal of Zoology, 223, 521–526.

    Article  Google Scholar 

  • Guillomot, M. and Guay, P. (1982) Ultrastructural features of the cell surfaces of uterine and tro-phoblastic epithelium during embryonic attachment in the cow. Anatomical Record, 204, 315–322.

    Article  PubMed  CAS  Google Scholar 

  • Guillomot, M., Flechon, E., Wintenberger-Torres. S. (1981) Conceptus attachment in the ewe: an ultratructural study. Placenta, 2, 169–182.

    Article  PubMed  CAS  Google Scholar 

  • Guillomot, M., Flechon, E., Wintenberger-Torres. S. (1982) Cytochemical studies of the uterus and trophoblastic surface during blastocyst attachment in the ewe. Journal of Reproduction and Fertility, 65, 1–8.

    Article  PubMed  CAS  Google Scholar 

  • Guillomot, M., Michel, C., Gaye, P., Charlier, N., Trojan, J. and Martal, J. (1990) Cellular localisation of an embryonic interferon, ovine trophob-lastin, and its mRNA in sheep embryos during early pregnancy. Biologie Cellulaire, 68, 205–211.

    Article  CAS  Google Scholar 

  • Habashi, S., Burton, G.J. and Steven, D.H. (1983) Morphological study of the fetal vasculature of the human term placenta: scanning electron microscopy of corrosion casts. Placenta, 4, 41–56.

    Article  PubMed  CAS  Google Scholar 

  • Hafez, E.S.E. and Tsutsumi, Y. (1966) Changes in endometrial vascularity during implantation and pregnancy in the rabbit. American Journal of Anatomy, 118, 249–282.

    Article  PubMed  CAS  Google Scholar 

  • Hagan, H. (1951) Embryology of the Viviparous Insects. Ronald Press, New York.

    Google Scholar 

  • Hall, J. and Talamantes, F. (1984) Immunogold localisation of mouse placental lactogen in the mouse placenta. Journal of Histochemistry and Cytochemistry, 32, 379–382.

    Article  PubMed  CAS  Google Scholar 

  • Haluska, G.J. and Currie, W.B. (1988) Variation in plasma concentrations of oestradiol 17β and their relationship to those of progesterone, PGF2α and oxytocin across pregnancy and at parturition in pony mares. Journal of Reproduction and Fertility, 84, 635–644.

    Article  PubMed  CAS  Google Scholar 

  • Hamilton, D.W., Allen, W.R. and Moor, R.M. (1973) Origin of endometrial cups. III. Light and electron microscopic study of fully developed equine endometrial cups. Anatomical Record, 177, 503–518.

    Article  PubMed  CAS  Google Scholar 

  • Hamilton, W.J., Harrison, R.J. and Young, B.A. (1960) Aspects of placentation in certain Cervidae. Journal of Anatomy, 94, 1–33.

    PubMed  CAS  Google Scholar 

  • Hamlett, W.C. (1989) Evolution and morphology of the placenta in sharks. Journal of Experimental Zoology, Suppl. 2, 35–52.

    Article  Google Scholar 

  • Hamlett, W.C. and Wourms, J.P. (1984) Ultrastructure of the preimplantation shark yolk sac placenta. Tissue and Cell Research, 16, 613–625.

    Article  CAS  Google Scholar 

  • Hamlett, W.C, Wourms, J.P. and Hudson, J.S. (1985) Ultrastructure of the full term shark yolk sac placenta. I. Morphology and cell transport at the fetal attachment site. Journal of Ultrastructure Research, 91, 192–206.

    Article  PubMed  CAS  Google Scholar 

  • Hamlett, W.C, Eulitt, A.M., Jarrell, R.L. and Kelly, M.A. (1993) Utero-gestation and placentation in Elasmobranchs. Journal of Experimental Biology, 266, 347–367.

    Google Scholar 

  • Hamon, M., Heap, R.B., Morgan, G., Wango, E. and Wooding, F.B.P. (1985) Steroid production by isolated of binucleate cells from ruminant placenta. Journal of Physiology, 371, 218P.

    Google Scholar 

  • Handwerger, S. (1991) The physiology of placental lactogen in human pregnancy. Endocrine Reviews, 12, 329–339.

    Article  PubMed  CAS  Google Scholar 

  • Hansen, P.J., Anthony, R.V., Bazer, F.W., Baumbach, G.A. and Roberts, R.M. (1985) In vitro synthesis and secretion of OTP-1 during the period of maternal recognition of pregnancy. Endocrinology, 117, 1424–1430.

    Article  PubMed  CAS  Google Scholar 

  • Harding, J.E., Jones, C.T. and Robinson, J.S. (1985) Studies on experimental growth retardation in sheep. The effects of a small placenta in restricting transport to and growth of the fetus. Journal of Developmental Physiology, 7, 427–442.

    PubMed  CAS  Google Scholar 

  • Hasselager, E. (1985) Surface exchange area of the porcine placenta: morphometry of anisotropic interdigitating microvilli. Journal of Microscopy, 141, 91–100.

    Article  Google Scholar 

  • Head, J.R. and Seelig, L.L. (1984) Lymphatic vessels in the uterine endometrium of virgin rats. Journal of Reproductive Immunology, 6, 157–166.

    Article  PubMed  CAS  Google Scholar 

  • Heap, R.B., Flint, A.P.F. and Staples, L.D. (1983) Endocrinology of trophoblast in farm animals, in Biology of Trophoblast (eds C. Loke and A. Whyte), Elsevier, Amsterdam, pp. 353–400.

    Google Scholar 

  • Heap, R.B., Fleet, I.R. and Hamon, M. (1985) PGF2α is transferred from the uterus to the ovary in the sheep by lymphatic and blood vascular pathways. Journal of Reproduction and Fertility, 74, 645–656.

    Article  PubMed  CAS  Google Scholar 

  • Hees, H., Moll, W., Wrobel, K.H and Hees, Z. (1987) Pregnancy induced structural changes and trophoblast invasion in the segmental mesometrial arteries of the guinea pig. Placenta, 8, 609–626.

    Article  PubMed  CAS  Google Scholar 

  • Helmer, S.D., Hansen, P.J., Anthony, R.V., Thatcher, W.W., Bazer, F.W. and Roberts, R.M. (1987) Identification of bovine trophoblast protein 1, a secretory protein immunologically related to OTP-1. Journal of Reproduction, 79, 83–91.

    Article  CAS  Google Scholar 

  • Hemmings, W.A. (1957) Protein selection in yolk sac splanchnopleur of the rabbit: the total uptake as estimated as loss from the uterus. Proceedings of the Royal Society, B 148, 76–83.

    Article  Google Scholar 

  • Hill, D.J., Clemmons, D.R., Riley, S.C., Bassett, N. and Challis, J.R.G. (1993) Immunohisto-chemical localisation of IGFs and IGF1/2/3 binding proteins in the human placenta and fetal membranes. Placenta, 14, 1–12.

    Article  PubMed  CAS  Google Scholar 

  • Hill. J.P. (1932) The developmental history of the primates. Philosophical Transactions of the Royal Society, 221, 45–178.

    Article  Google Scholar 

  • Hobson, B.M. and Wide, L. (1972) A comparison between chorionic gonadotrophins extracted from human, rhesus monkey and marmoset placentas. Journal of Endocrinology, 55, 363–368.

    Article  PubMed  CAS  Google Scholar 

  • Hodgen, G.D., Tullner, W.W., Vaitukaitis, J.L., Ward, D.N. and Ross, G.T. (1974) Specific radio-immunoassay of chorionic gonadotrophin during implantation in Rhesus monkeys. Journal of Clinical Endocrinology and Medicine, 39, 457–464.

    Article  CAS  Google Scholar 

  • Hofmann, G.E., Scott, R.T., Bergh, P.A. and Deligdisch, L. (1991) Immunohistochemical localisation of EGF in human endometrium deci-dua and placenta. Journal of Clinical Endocrinology and Medicine, 73, 882–887.

    Article  CAS  Google Scholar 

  • Hoffman, L.H. (1970) Placentation in the garter snake, Thamnophis sirtalis. Journal of Morphology, 131, 57–88.

    Article  PubMed  CAS  Google Scholar 

  • Hoffmann, L.H. and Wooding, F.B.P. (1993) Giant and binucleate trophoblastic cells of mammals. Journal of Experimental Zoology, 266, 559–577.

    Article  Google Scholar 

  • Hoffman, L.H., Winfrey, V.P., Anderson, T.Z. and Olson, G.E. (1990a) Uterine receptivity to implantation in the rabbit: evidence for a 42 kDa glycoprotein as a marker of receptivity. Trophoblast Research, 4, 243–258.

    CAS  Google Scholar 

  • Hoffman, L.H., Winfrey, V.P. and Hoos, P.C. (1990b) Sites of endometrial vascular leakage during implantation in the rabbit. Anatomical Record, 227, 47–61.

    Article  PubMed  CAS  Google Scholar 

  • Hogarth, P.J. (1976) Viviparity, Studies in Biology No. 75. Arnold, London.

    Google Scholar 

  • Hoshina, M., Boothby, M. and Boime, I. (1982) Cytological localization of chorionic gonadotrophin-α and placental lactogen mRNAs during development of the human placenta. Journal of Cellular Biology, 93, 190–198.

    Article  CAS  Google Scholar 

  • Hradecky, P., Mossman, H.W. and Stott, G.G. (1988) Comparative histology of antelope pla-centomes. Theriogenology, 29, 693–714.

    Article  PubMed  CAS  Google Scholar 

  • Humblot, P., De Montigny, G., Jeanguyot, N., Tetodoie, F., Payen, B., Thibier, M. and Sasser, R.G. (1990) PSPB and progesterone concet-rations in french alpine goats throughout gestation. Journal of Reproduction and Fertility, 89, 205–212.

    Article  PubMed  CAS  Google Scholar 

  • Hunt, J.S. and Hsi, B.L. (1990) Review. Evasive strategies of trophoblast cells: selective expression of membrane antigens. American Journal of Reproductive Immunology, 23, 57–63.

    PubMed  CAS  Google Scholar 

  • Hunt, J.S., Manning, L.S. and Wood, G.W. (1984) Macrophages in murine uterus are immunosup-pressive. Cellular Immunology, 85, 499–510.

    Article  PubMed  CAS  Google Scholar 

  • Hunt, J.S., Fishback, J.L., Chumbley, G. and Loke, Y.W. (1990) Identification of class I MHC mRNA in human first trimester trophoblast cells by in situ hybridisation. Journal of Immunology, 144, 4420–4425.

    CAS  Google Scholar 

  • Hunziker, R.D. and Wegman, T.G. (1986) Placental immunoregulation. Clinical Reviews in Immunology, 6, 245–285.

    CAS  Google Scholar 

  • Ilgren, E.B. (1983) Review Article: Control of trophoblast growth. Placenta, 4, 307–328.

    Article  PubMed  CAS  Google Scholar 

  • Imakawa, K., Anthony, R.V., Kazemi, M., Marotti, K.K., Polites, H.G. and Roberts, R.M. (1987) Interferon like sequence of ovine trophoblast protein secreted by embryonic trophecto-derm. Nature, 330, 377–379.

    Article  PubMed  CAS  Google Scholar 

  • Imakawa, K., Hansen, T.R., Malathy, P.V., Anthony, R.V., Polites, H.G., Marotti, K.R. and Roberts, R.M. (1989) Molecular cloning and characterisation of cDNAs corresponding to BTP-1; a comparison with OTP-1 and bovine interferon αII. Molecular Endocrinology, 3, 127–139.

    Article  PubMed  CAS  Google Scholar 

  • Ing, N.H. and Roberts, R.M. (1989) The major progesterone modulated proteins secreted into the sheep uterus are members of the serpin superfamily of serine protease inhibitors. Journal of Biological Chemistry, 264, 3372–3379.

    PubMed  CAS  Google Scholar 

  • Ingermann, R.L. (1987) Control of placental glucose transfer. Placenta, 8, 557–571.

    Article  PubMed  CAS  Google Scholar 

  • Johns, R. and Renegar, R.H. (1990) Ultrastructural morphology and relaxin immunolocalisation in giant trophoblast cells of the golden hamster placenta. American Journal of Anatomy, 189, 167–178.

    Article  PubMed  CAS  Google Scholar 

  • Johnson, S.A. and Wooding, F.B.P. (1988) Synthesis and storage of chorionic gonado-trophin and placental lactogen in human syncy-tiotrophoblast. Journal of Physiology, 403, 29P.

    Google Scholar 

  • Jollie, W.P. (1969) Nuclear and cytoplasmic fine structure in the trophectoderm giant cells of rat placenta. Anatomical Record, 65, 1–14.

    Article  Google Scholar 

  • Jollie, W.P. (1979) The fine structure of placental junctional zone cells during prolonged pregnancy in rats. Acta Anatomica, 105, 386–400.

    Article  PubMed  CAS  Google Scholar 

  • Jollie, W.P. and Craig, S.S. (1979) The fine structure of the placental junctional zone cells during prolonged pregnancy in rats. Acta Anatomica, 105, 386–400.

    Article  PubMed  CAS  Google Scholar 

  • Jollie, W.P. and Jollie, L.G. (1967) Electron microscopic observations on the yolk sac of the spiny dogfish Squalus acanthias. Journal of Ultrastructure Research, 18, 102–126.

    Article  PubMed  CAS  Google Scholar 

  • Jones, C.J.P. and Fox, H. (1991) Ultrastructure of the normal human placenta. Electron microscopy Reviews, 4, 129–178.

    Article  PubMed  CAS  Google Scholar 

  • Jones, R.E. and Guillette, L.J. (1982) Hormonal control of oviposition and parturition in lizards. Herpetologica, 38, 80–93.

    Google Scholar 

  • Kalter, S.S., Helmke, R.J., Panigel, M., Heberling, R.C., Felsburg, P.J. and Axelrod, L.R. (1973) Observation of apparent C type particles in Baboon (Papio Cyno Cephalaus) placentas. Science (Washington), 179, 1332–1333.

    Article  CAS  Google Scholar 

  • Kanbour, A., Ho, H.N., Misra, D.N., Macpherson, T.A., Kinz, H.W. and Gill, T.O. (1987) Differential expression of MHC class I antigens on the placenta of the rat. Journal of Experimental Medicine, 166, 1882–1887.

    Article  Google Scholar 

  • Kappes, S.M., Warren, W.C., Pratt, S.L., Liang, R. and Anthony, R.V. (1992) Quantification and cell localisation of OPL mRNA expression during mid and late gestation. Endocrinology, 131, 2829–2838.

    Article  PubMed  CAS  Google Scholar 

  • Kasturirangan, L.R. (1952) The allantoplacenta of the sea snake Hydrophis cyanocinctus Daudin. Journal of the Zoological Society of India, 3, 277–290.

    Google Scholar 

  • Kaufmann, M.H. (1983) Origin, properties and fate of trophoblast in the mouse, in Biology of Trophoblast (eds C. Loke and A. Whyte), Elsevier, Amsterdam, 23–70.

    Google Scholar 

  • Kaufmann, P. (1981a) Electron microscopy of the guinea pig placental membranes. Placenta, 2, 3–10.

    Google Scholar 

  • Kaufmann, P. (1981b) Entwicklung der Plazenta, in Die Plazenta des Menschen, (eds V. Becker, T.H. Schiebler and F. Kubli), Thieme, New York, pp. 13–50.

    Google Scholar 

  • Kaufmann, P. (1982) Development and differentiation of the human placental villous tree. Bibliotheca Anatomica, 22, 29–39.

    PubMed  Google Scholar 

  • Kaufmann, P. (1985) Basic morphology of the fetal and maternal circuits in the human placenta. Contributions to Gynecology and Obstetrics, 13, 5–17.

    PubMed  CAS  Google Scholar 

  • Kaufmann, P., Bruns, V., Leiser, R., Luckhard, M. and Winterhager, E. (1985) The fetal vasculature of term human placental villi. II. Intermediate and terminal villi. Anatomy and Embryology.

    Google Scholar 

  • Kearns, M. and Lala, P.K. (1983) Life history of decidual cells: a review. American Journal of Reproduction and Immunological Microbiology, 3, 78–82.

    CAS  Google Scholar 

  • Kellas, L.M. (1966) The placenta and foetal membranes of the antelope Ourebia ourebi (Zimmerman). Acta Anatomica, 64, 390–445.

    Article  Google Scholar 

  • Kennedy, T.G. (1983) Embryonic signals and the initiation of blastocyst implantation. Australian Journal of Biological Science, 36, 531–543.

    CAS  Google Scholar 

  • Kennedy, T.G. and Lukash, L.A. (1982) Induction of decidualisation in rats by the intrauterine infusion of prostaglandins. Biology of Reproduction, 27, 253–260.

    Article  PubMed  CAS  Google Scholar 

  • Keys, J.L. and King, G.J. (1988) Morphological evidence for increased uterine vascular permeability at the time of embryonic attachment in the pig. Biology of Reproduction, 39, 473–487.

    Article  PubMed  CAS  Google Scholar 

  • Keys, J.L. and King, G.J. (1989) Structural changes in the luminal epithelium of the porcine uterus between days 10 and 19 of the estrous cycle. American Journal of Anatomy, 185, 42–57.

    Article  PubMed  CAS  Google Scholar 

  • Keys, J.L. and King, G.J. (1990) Microscopic examination of procine conceptus-maternal interface between days 10 and 19 of pregnancy. American Journal of Anatomy, 188, 221–228.

    Article  PubMed  CAS  Google Scholar 

  • Keys, J.L., King, C.J. and Kennedy, T.G. (1986) Increased uterine vascular permeability at the time of embryonic attachment in the pig. Biology of Reproduction, 34, 405–411.

    Article  PubMed  CAS  Google Scholar 

  • Keys, J.L., King, G.J. and Laforest, J.P. (1989) Autofluorescence of the porcine endometrium during early pregnancy. Biology of Reproduction, 40, 220–222.

    Article  PubMed  CAS  Google Scholar 

  • Kimber, S.J. and Lindenberg, S. (1990) Hormonal control of a carbohydrate epitope involved in implantation in mice. Journal of Reproduction and Fertility, 89, 13–21.

    Article  PubMed  CAS  Google Scholar 

  • Kimberley, D.J. and Thornburg, K.L. (1989) Electronmicroscopical tracers in the uterine epithelium of the pregnant guinea pig. Placenta, 10, 531–543.

    Article  Google Scholar 

  • Kimura, K. and Uchida, T. (1984) Development of the main and accessory placentae in the Japanese long fingered bat Miniopterus schreiber-sii fuliginosus. Journal of Reporoduction and Fertility, 71, 119–126.

    Article  CAS  Google Scholar 

  • Kimura, K. and Uchida, T.A. (1983) Electron microscopical observations of delayed implantation in the Japanese long fingered bat Miniopterus schreibersii fuliginosus. Journal of Reproduction and Fertility, 69, 187–193.

    Article  PubMed  CAS  Google Scholar 

  • King, A. and Loke, Y.W. (1993) Effect of IFN and α on killing of human trophoblast by decidual LAK cells. Journal of Reproductive Immunology, 23, 51–62.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. (1977) An electronmicroscopic study of absorption of peroxidaseconjugated immuno-globulin G by guinea pig visceral yolk sac in vitro. American Journal of Anatomy, 148, 447–456.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. (1984) The fine structure of the placenta and chorionic vesicles of the bush baby Galago crassicaudata. American Journal of Anatomy, 169, 101–117.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. (1986) Morphology of the placenta and fetal membranes, in Comparative Primate Biology, Vol. 3 (eds W.R. Dukelow and J.E. Erwin), Wiley, New York, Reproduction and Development, pp. 311–331.

    Google Scholar 

  • King, B.F. (1992) Ultrastructural evidence for transtrophoblastic channels in the hemomono-chorial placenta of the Degu (Octodon degus). Placenta, 13, 35–41.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. and Enders, A.C. (1971) Protein absorption by the guinea pig chorioallantoic placenta. American Journal of Anatomy, 130, 409–430.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. and Hastings, R. A. (1977) The comparative fine structure of the interhemal membrane of chorioallantoic placentas from six genera of myomorph rodents. American Journal of Anatomy, 149, 165–180.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. and Mossman, H.W. (1974) The fetal membranes and unusual giant cell placenta of the jerboa (Jaculus) and jumping mouse (Zapus). American Journal of Anatomy, 140, 405–432.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. and Tibbitts, F.D. (1969) The ultrastructure of the placental labyrinth in the kangaroo rat Dipodomys. Anatomical Record, 163, 543–554.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F. and Tibbitts, F.D. (1976) The fine structure of the chinchilla placenta. American Journal of Anatomy, 145, 33–56.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F., Enders, A.C. and Wimsatt, W.A. (1978) The annular hematoma of the shrew yolk sac placenta. American Journal of Anatomy, 152, 45–58.

    Article  PubMed  CAS  Google Scholar 

  • King, B.F., Pinheiro, P.B.N. and Hunter, R.L. (1982) The form of the placental labyrinth in the sloth Bradypus tridactylis. Anatomical Record, 202, 15–22.

    Article  PubMed  CAS  Google Scholar 

  • King, G.J. and Ackerley, C.A. (1985) Demonstration of oestrogens on developing pig troph-ectoderm and yolk sac endoderm between days 10 and 16. Journal of Reproduction and Fertility, 73, 361–367.

    Article  PubMed  CAS  Google Scholar 

  • King, G.J. and Atkinson, B.A. (1987) The bovine intercaruncular placenta throughout gestation. Animal Reproduction Science, 12, 241–254.

    Article  Google Scholar 

  • King, G.J., Atkinson, B.A. and Robertson, H.A. (1979) Development of the bovine placentome during the second month of gestation. Journal of Reproduction and Fertility, 55, 173–180.

    Article  PubMed  CAS  Google Scholar 

  • King, G.J., Atkinson, B.A. and Robertson, H.A. (1981) Development of the intercaruncular areas during early gestation and the establishment of the bovine placenta, Journal of Reproduction and Fertility, 61, 469–474.

    Article  PubMed  CAS  Google Scholar 

  • Kirby, D.R.S. (1963) The development of mouse blastocysts transplanted to the scrotal and cryp-torchid testis. Journal of Anatomy, 97, 119–130.

    PubMed  CAS  Google Scholar 

  • Kirby, D.R.S. (ed.) (1965) The ‘invasiveness’ of the trophoblast, in The early Conceptus, normal and abnormal (ed. W. Wallace Park), Livingstone, London, pp. 68-73.

    Google Scholar 

  • Kisalus, L.L., Hew, J.C. and Little, CD. (1987) Immunolocalisation of extracellular matrix proteins and collagen synthesis in first trimester human decidua. Anatomical Record, 218, 402–415.

    Article  PubMed  CAS  Google Scholar 

  • Kishi, K., Ogren, L., Southard, J.N. and Talam-antes, F. (1988) Pituitary factors regulating mouse placental lactogen II secretion during the last half of pregnancy in mice. Endocrinology, 122, 2309–2317.

    Article  PubMed  CAS  Google Scholar 

  • Kiso, Y., Yasufuku, K., Matsuda, H. and Yamavchi, S. (1990) Existence of an endothelio-endothelial placenta in the insectivore Suncus murinus. Cell and Tissue Research, 262, 195–197.

    Article  PubMed  CAS  Google Scholar 

  • Kitchen, H. and Bunn, H.F. (1975) Ontogeny of equine haemoglobins. Journal of Reproduction and Fertility, Suppl. 23, 595–598.

    PubMed  CAS  Google Scholar 

  • Kliman, H.J., Nestler, J.E., Sermasi, E., Sanger, J.M. and Strauss, J.F. (1986) Purification, characterisation and in vitro differentiation of cytotro-phoblast from human term placenta. Endocrinology, 118, 1567–1582.

    Article  PubMed  CAS  Google Scholar 

  • Klopper, A. and Ahmed, A.G. (1985) New applications for the assay of placental proteins. Placenta, 6, 173–184.

    Article  PubMed  CAS  Google Scholar 

  • Knickerbocker, J.J., Thatcher, W.W., Berger, F.W., Drost, M., Barron, D.H., Fincher, K.B. and Roberts, R.M. (1986) Proteins secreted by day 16 to 18 bovine conceptuses extend CL function in cows. Journal of Reproduction and Fertility, 77, 381–391.

    Article  PubMed  CAS  Google Scholar 

  • Knight, P.M., Lombardi, J., Wourms, J.P. and Burns, J.R. (1985) Follicular placenta and embryonic growth of the viviparous four eyed fish (Anableps). Journal of Morphology, 185, 131–142.

    Article  Google Scholar 

  • Kramer, B., Stein, B.A. and Vanderwalt, L.A. (1990) Exogenous gonadotropins serum oestrogen and progesterone and the effect on endometrial morphology in the rat. Journal of Anatomy, 173, 177–186.

    PubMed  CAS  Google Scholar 

  • Krcek, J. and Clark, D.A. (1985) Selective localisation of a bone marrow cell subpopulation at the implantation site in murine decidua. American Journal of Reproduction and Immunological Microbiology, 7, 95–98.

    Article  CAS  Google Scholar 

  • Kunz, Y. W. (1971) Histological study of the greatly enlarged pericardial sac in the embyro of the viviparous telost Lebistes reticulatus. Revue Suisse Zoologie, 78, 187–207.

    Google Scholar 

  • Kurman, R.J., Main, C.S. and Chen, H.C. (1984) Intermediate trophoblast: a distinctive form of trophoblast with specific morphological biochemical and functional features. Placenta, 5, 349–370.

    Article  PubMed  CAS  Google Scholar 

  • Lala, P.K. (1989) Similarities between immunore-gulation in pregnancy and malignancy: the role of prostaglandin E2. American Journal of Reproductive Immunology, 20, 147–152.

    PubMed  CAS  Google Scholar 

  • Lala, P.K., Chatterjee, Hasrouni S., Kearns, M., Montgomery, B. and Colavicenzo, V. (1983) Immunobiology of the fetomaternal interface. Immunological Reviews, 75, 87–116.

    Article  PubMed  CAS  Google Scholar 

  • Larkin, L.H. and Flickinger, C.J. (1969) Ultra-structure of the metrial gland cell in the pregnant rat. American Journal of Anatomy, 126, 337–354.

    Article  PubMed  CAS  Google Scholar 

  • Larsen, J.F. (1961) Electron microscopy of the implantation site in the rabbit. American Journal of Anatomy, 109, 319–334.

    Article  PubMed  CAS  Google Scholar 

  • Lawn, A.M., Chiquoine, A.D. and Amoroso, E.C. (1969) The development of the placenta in the sheep and goat: an electron microscopic study. Journal of Anatomy, 105, 557–578.

    PubMed  CAS  Google Scholar 

  • Leach, L., Eaton, B.M., Firth, J.A. and Contractor, S.F. (1990) Uptake and intracellular routing of peroxidase conjugated IgG by the perfused human placenta. Cell and Tissue Research, 261, 383–388.

    Article  PubMed  CAS  Google Scholar 

  • Ledger, W.L., Ellwood, D.A. and Taylor, M.J. (1983) Cervical softening in late pregnant sheep by infusion of PGE2 into a cervical artery. Journal of Reproduction and Fertility, 69, 511–523.

    Article  PubMed  CAS  Google Scholar 

  • Lee, C.S., Gogolin-Ewens, K., White, T.R. and Brandon, M.R. (1985) Studies on the distribution of binucleate cells in the placenta of sheep with a monoclonal antibody SBU-3. Journal of Anatomy, 140, 565–576.

    PubMed  Google Scholar 

  • Lee, C.S., Gogolin-Ewens, K. and Brandon, M. (1986a) Comparative studies on the distribution of binucleate cells in the placentae of the deer and cow using the monoclonal antibody SBU3. Journal of Anatomy, 147, 163–180.

    PubMed  CAS  Google Scholar 

  • Lee, C.S., Wooding, F.B.P. and Brandon, M.R. (1986b) Light and electron microscope immuno-cytochemical studies on the role of binucleate cells in villus growth in goat placentomes. Journal of Submicroscopical Cytology, 18, 661–672.

    CAS  Google Scholar 

  • Lee, C.S., Wooding, F.B.P. and Brandon, M.R. (1986c) Immunogold co-localization of ovine pla-cental lactogen and the antigen recognized by the SBU-3 monoclonal antibody in sheep pla-cental granules. Journal of Reproduction and Fertility, 78, 653–662.

    Article  PubMed  CAS  Google Scholar 

  • Lee, C.S., Wooding, F.B.P. and Brandon, M.R. (1986d) Ultrastructural immunogold investigations of the function and diversity of binucleate cells in the sheep placenta using a monoclonal antibody. Placenta, 7, 495–504.

    Article  PubMed  CAS  Google Scholar 

  • Lee, C.S., Ralph, M.M., Gogolin Ewens, K.J. and Brandon, M.R. (1990) Monoclonal antibody identification of cells dissociated from the sheep placentomal trophoblast. Journal of Histo-chemistry and Cytochemistry, 38, 649–652.

    Article  CAS  Google Scholar 

  • Lee, C.S., Meeusen, E., Gogolin Ewens, K. and Brandon, M.R. (1992) Quantitative and qualitative changes in the intraepithelial lymphocyte population in the uterus of nonpregnant and pregnant sheep. American Journal of Reproductive Immunology, 28, 90–96.

    PubMed  CAS  Google Scholar 

  • Lee, S.Y., Mossman, H.W., Mossman, A.S. and DelPino, G. (1977) Evidence for a specific implantation site in ruminants. American Journal of Anatomy, 150, 631–640.

    Article  PubMed  CAS  Google Scholar 

  • Lee, S.Y., Anderson, J.W., Scott, G.L. and Mossman, H. W. (1983) Ultrastructure of the placenta and fetal membranes of the dog. II. The yolk sac. American Journal of Anatomy, 166, 313–327.

    Article  PubMed  CAS  Google Scholar 

  • Legrand, C. (1974) Origine et évolution des cellules trophoblastiques intra arterielles, chez le rat: étude autoradiographique. Journal of Experimental Embryology and Medicine, 31, 693–705.

    CAS  Google Scholar 

  • Leiser, R. (1975) Kontaktaufnahme zwischen trophoblast und uterus epithel wahrend der frühen implantation beim rind. Anatomy Histology Embryology, 4, 63–86.

    Article  CAS  Google Scholar 

  • Leiser, R. (1979) Blastocysten implantation bei der Hauskatze. Licht und Elektronen optische Untersuchungen. Anatomy Histology Embryology, 8, 79–96.

    Article  CAS  Google Scholar 

  • Leiser, R. (1987) Mikrovaskularisation der Ziegenplazenta, dargestellt mit Rasterelektronisch untersuchten Gefassausgussen. Schweizwer Archiv fur Tierheilkunde, 129, 59–74.

    CAS  Google Scholar 

  • Leiser, R. and Dantzer, V. (1988) Structural and functional aspects of porcine placental vascula-ture. Anatomy and Embryology, 177, 409–419.

    Article  PubMed  CAS  Google Scholar 

  • Leiser, R. and Enders, A.C. (1980a) Light and electron microscopy study of the near term para-placenta of the domestic cat. 1. Polar zone and paraplacental functional areas. Acta Anatomica, 106, 293–311.

    Article  PubMed  CAS  Google Scholar 

  • Leiser, R. and Enders, A.C. (1980b) Light and electron microscopy study of the near term par-aaplacenta of the domestic cat. 2. paraplacental hematoma. Acta Anatomica, 106, 312–326.

    Article  PubMed  CAS  Google Scholar 

  • Leiser, R. and Kohler, T. (1983) The blood vessels of the cat girdle placenta. Observations on corrosion casts. SEM and histological studies. I. Maternal vasculature. Anatomy and Embryology, 167, 85–93.

    Article  PubMed  CAS  Google Scholar 

  • Leiser, R. and Kohler, T. (1984) The blood vessels of the cat girdle placenta, observations on corrosion casts, scanning electron microscopical and histological studies. II. Fetal vasculature. Anatomy and Embryology, 170, 209–216.

    Article  PubMed  CAS  Google Scholar 

  • Lemons, J.A., Adcock III, E.W., Jones Jr., M.D., Naughton, M.A., Meschia, G. and Battaglia, F.C. (1976) Umbilical uptake of amino acids in the unstressed fetal lamb. Journal of Clinical Investigation, 58, 1428–1434.

    Article  PubMed  CAS  Google Scholar 

  • Lennep, E.W. (1961) The histology of the placenta of the one humped camel (Camelus dromedarius) during the first half of pregnancy. Acta Morphological Neerlandica Scandinavica, 4, 180–193.

    Google Scholar 

  • Lifsey, B.J., Baumbach, G.A. and Godkin, J.D. (1989) Isolation characterisation and immuno-cytochemical localisation of bovine trophoblast protein-1. Biology of Reproduction, 40, 343–352.

    Article  PubMed  CAS  Google Scholar 

  • Liggins, G.C. (1981) Endocrinology of parturition, in Fetal Endocrinology (eds M.J. Novy and J.A. Resko), Academic Press, New York, pp. 211–237.

    Google Scholar 

  • Lin, T.M., Haibert, S.P., Kiefer, D., Spellacy, W.N. and Gall, S. (1974) Characterization of four human pregnancy-associated plasma proteins. American Journal of Obstetrics and Gynecology, 118, 223–236.

    PubMed  CAS  Google Scholar 

  • Lindenberg, S., Hyttel, P., Sjogren, A. and Greve, T. (1989) A comparative study of attachment of human bovine and mouse blastocysts to uterine epithelial monolayers. Human Reproduction, 4, 446–456.

    PubMed  CAS  Google Scholar 

  • Loke, Y.W. and King, A. (1989) Immunology of pregnancy: quo vadis? Human Reproduction, 4, 613–615.

    PubMed  CAS  Google Scholar 

  • Loke, Y.W., Burland, K. and Butterworth, B. (1986) Antigen bearing trophoblast in human placental implantation site, in Reproduction and Immunology (eds D.A. Clark and B.A. Croy), Elsevier, London, pp. 53–59.

    Google Scholar 

  • Lombardi, J. and Wourms, J.P. (1985a) The tro-photaenial placenta of a viviparous Goodeid Fish. I. Ultrastructure of the internal ovarian epithelium: the maternal component. Journal of Morphology, 184, 277–292.

    Article  PubMed  CAS  Google Scholar 

  • Lombardi, J. and Wourms, J.P. (1985b) The tro-photaenial placenta of a viviparous Goodeid Fish. II. Ultrastructure of trophotaeniae: the embryonic component. Journal of Morphology, 184, 293–309.

    Article  PubMed  CAS  Google Scholar 

  • Lombardi, J. and Wourms, J.P. (1985c) The tro-photaenial placenta of a viviparous Goodeid Fish. III. Protein uptake by trophotaeniae: the embryonic component. Journal of Experimental Zoology, 236, 165–179.

    Article  PubMed  CAS  Google Scholar 

  • Lowe, K.C., Beck, N.F.G., McNaughton, D.C., Jansen, C.A.M., Thomas, A.L., Nathanielz, P.W., Mallon, K. and Steven, D.H. (1979) Ultrastructural changes in the placenta of the ewe after long term intravascular infusion of 2-bromo-β-ergocryptine (CB154) into mother or fetus. Quarterly Journal of Experimental Physiology, 64, 253–262.

    CAS  Google Scholar 

  • Luckett, W.P. (1976) Cladistic relationship among primate higher categories: evidence from fetal membranes and placenta. Folia Primatologia, 25, 245–276.

    Article  CAS  Google Scholar 

  • Luckett, W.P. (1977) Ontogeny of amniote fetal membranes and their application to phylogeny, in Major Patterns in Vertebrate Evolution (eds M.K. Hecht, P.C. Goody and B.M. Hecht), Plenum Press, New York, pp.439-516.

    Google Scholar 

  • Luckett, W.P. (1978) Origin and differentiation of the yolk sac and embryonic mesoderm in preso-mite human and Rhesus monkey embryos. American Journal of Anatomy, 152, 59–98.

    Article  PubMed  CAS  Google Scholar 

  • Luckhardt, M., Kaufmann, P. and Elger, W. (1985) The structure of the Tupaia placenta. I. Histology and vascularisation. Anatomy and Embryology, 171, 201–210.

    Article  PubMed  CAS  Google Scholar 

  • Ludwig, K.S. (1962) Zur feinstruktur der materno-fetalen Verbindung in placentom des schafes (Ovis aries. L.). Experientia, 18, 212–213.

    Article  PubMed  CAS  Google Scholar 

  • Ludwig, K.S. (1968) Zur vergleichenden Histologie des Allantochorion. Revue Suisse de Zoologie, 75, 819–831.

    CAS  Google Scholar 

  • MacDonald, A.A. (1975) Uterine vasculature of the pregnant pig: a scanning electron microscopy study. Anatomical Record, 184, 689–698.

    Article  Google Scholar 

  • MacDonald, A.A. (1981) The vascular anatomy of the pig placenta: a scanning electron microscope study. Acta Morphologica Neerlandica Scandi-navica, 19, 171–172.

    Google Scholar 

  • McGovern, P.T. (1973) The effect of maternal immunity on the survival of goat x sheep hybrid o? embryos. Journal of Reproduction and Fertility, 34, 215–220.

    Article  PubMed  CAS  Google Scholar 

  • Magness, R.R., Mitchell, M.D. and Rosenfeld, C.R. (1990) Uteroplacental production of eicosa-noids in ovine pregnancy. Prostaglandins, 39, 75–88.

    Article  PubMed  CAS  Google Scholar 

  • Makowski, E.L. (1968) Maternal and fetal vascular nets in placentas of sheep and goats. American Journal of Obstetrics and Gynecology, 100, 283–288.

    Google Scholar 

  • Malassine, A. (1974) Evolution ultrastructurale du labyrinthe de placenta de chatte. Anatomy and Embryology, 146, 1–20.

    Article  PubMed  CAS  Google Scholar 

  • Malassine, A. and Leiser, R. (1984) Morphogenesis and fine structure of the near term placenta of Talpa europea. 1. Endotheliochorial labyrinth. Placenta, 5, 145–158.

    Article  PubMed  CAS  Google Scholar 

  • Martal, J. and Djiane, J. (1977) The production of chorionic somatomammotrophin in sheep. Journal of Reproduction and Fertility, 49, 285–289.

    Article  PubMed  CAS  Google Scholar 

  • Martal, J. and Lacroix, M.C. (1978) Production of chorionic somatomammotrophin (OCS): fetal growth of the placenta and corpus luteum in ewes treated with 2-bromo-β-ergocryptine (BC). Endocrinology, 103, 193–199.

    Article  PubMed  CAS  Google Scholar 

  • Martal, J., Djiane, J. and Dubois, M.P. (1977) Immunofluorescent localisation of ovine placental lactogen. Cell and Tissue Research, 184, 427–433.

    Article  PubMed  CAS  Google Scholar 

  • Martal, J., Lacroix, M.C., Loudes, C., Saunier, M. and Wintenberger-Torres, S. (1979) Tropho-blastin, an antiluteolytic protein present in early pregnancy in sheep. Journal of Reproduction and Fertility, 56, 63–73.

    Article  PubMed  CAS  Google Scholar 

  • Martin, C.B. (1981) Models of placental blood flow. Placenta, Suppl. 1, 65–80.

    Google Scholar 

  • Martinek, J.J. (1970) Fibrinoid and the fetal-maternal interface of the rat placenta. Anatomical Record, 166, 587–604.

    Article  PubMed  CAS  Google Scholar 

  • Maslar, I.A., Powers, J., Craddock, P. and Ansbacher, K. (1986) Decidual prolactin production by organ cultures of human endo-metrium: effects of intermittent progesterone treatment. Biology of Reproduction, 34, 741–750.

    Article  PubMed  CAS  Google Scholar 

  • Mathialagan, N., Bixby, J.A. and Roberts, R.M. (1992) Expression of IL6 in porcine, ovine and bovine preimplantation conceptuses. Molecular Reproduction and Development, 32, 324–330.

    Article  PubMed  CAS  Google Scholar 

  • Matre, R., Tonder, O. and Endresen, C. (1975) Fe receptors in human placenta. Scandinavian Journal of Immunology, 4, 741–745.

    Article  PubMed  CAS  Google Scholar 

  • Mattson, B.A., Overstrom, E.W. and Albertini, D.E. (1990) Transitions in trophectodermal cellular shape and cytoskeletal organisation in the elongating pig blastocyst. Biology of Reproduction, 42, 195–205.

    Article  PubMed  CAS  Google Scholar 

  • Mayhew, T.M., Joy, C.F. and Haas, J.D. (1984) Structure-function correlation in the human placenta: the morphometric diffusing capacity for oxygen at full term. Journal of Anatomy, 139, 691–708.

    PubMed  Google Scholar 

  • Mayhew, T.M., Jackson, M.R. and Haas, J.D. (1986) Microscopical morphology of the human placenta and its effects on oxygen diffusion: a morphometric model. Placenta, 7, 121–131.

    Article  PubMed  CAS  Google Scholar 

  • Mazariegos, M.R., Leblond, C.P. and van der Rest, M. (1987) Radioautographic tracing of 3H proline in the endodermal cells of the parietal yolk sac as an indicator of the biogenesis of basement membrane components. American Journal of Anatomy, 179, 79–93.

    Article  PubMed  CAS  Google Scholar 

  • Mead, R.A. (1993) Embryonic diapause in vertebrates. Journal of Experimental Zoology, 266, 629–641.

    Article  PubMed  CAS  Google Scholar 

  • Medawar, P.B. (1953) Some immunological and endocrinology problems raised by the evolution of viviparity in vertebrates. Symposia Society for Experimental Biology, 7, 328–338.

    Google Scholar 

  • Meinecke-Tillmann, S. (1984) Experimental chim-aeras — removal of reproductive barrier between sheep and goat. Nature, 307, 637–638.

    Article  PubMed  CAS  Google Scholar 

  • Meites, J., Webster, H.D., Young, F.W., Thorp, F. and Hatch, R.N. (1951) Effects of corpora lutea removal and replacement with progesterone on pregnancy in goats. Journal of Animal Science, 10, 411–416.

    PubMed  CAS  Google Scholar 

  • Merker, H.J., Bremer, D., Barach, H.J. and Gossrau, R. (1987) The basement membrane of the persisting maternal blood vessels in the placenta of Callithrix jacchus. Anatomy and Embryology, 176, 87–97.

    Article  PubMed  CAS  Google Scholar 

  • Metcalfe, J., Moll, W., Bartels, H., Hilpert, P. and Parer, J.T. (1965) Transfer of carbon monoxide and nitrous oxide in the artifically perfused sheep placenta. Circulation Research, 16, 95–101.

    Article  PubMed  CAS  Google Scholar 

  • Metz, J. (1980) On the development of the rat placenta I. Differentiation and functional alterations of labyrinthine layers II and III. Anatomy and Embryology, 159, 289–305.

    Article  PubMed  CAS  Google Scholar 

  • Metz, J., Heinrich, D. and Forssmann, W.G. (1976) Gap junctions in haemodi-, and trichorial placentas. Cell and Tissue Research, 171, 305–316.

    Article  PubMed  CAS  Google Scholar 

  • Metz, J., Aoki, A. and Forssman, W.G. (1978) Studies on the ultrastructure and permeability of the haemotrichorial placenta. I. Intercellular junctions of layer I and tracer administration into the maternal compartment. Cell and Tissue Research, 192, 391–407.

    Article  PubMed  CAS  Google Scholar 

  • Meuris, S., Soumenkoff, G., Malengrean, A. and Robyn, C. (1980) Immunoenzymological localisation of prolactin like immunoreactivity in de-cidual cells of the endometrium from pregnant and non pregnant women. Journal of Histochemistry and Cytochemistry, 28, 1347–1350.

    Article  PubMed  CAS  Google Scholar 

  • Michael, C.A. and Schofield, B.M. (1968) The influence of ovarian hormones on the actomyosin content and the development of tension in uterine muscle. Journal of Endocrinology, 44, 501–511.

    Article  Google Scholar 

  • Michael, K., Ward, B.S. and Moore, W.M.O. (1985) In vitro permeability of the pig placenta in the last third of gestation. Biology of the Neonate, 47, 170–178.

    Article  PubMed  CAS  Google Scholar 

  • Miller, W.L. and Eberhardt, N.L. (1983) Structure and evolution of the growth hormone gene family. Endocrine Reviews, 4, 97–130.

    Article  PubMed  CAS  Google Scholar 

  • Milosavljevic, M., Duello, T.M. and Schuler, L.A. (1989) In situ localisation of the prolactin related mRNAs to binuleate cells of bovine placen-tomes. Endocrinology, 125, 883–889.

    Article  PubMed  CAS  Google Scholar 

  • Mitchell, B.S., Craggs, R.I. and Peel, S. (1981) Localisation of immunoglobulins (IgG) in granulated metrial gland cells of deciduomata of the pseudopregnant rat. Journal of Reproductive Immunology, 3, 237–241.

    Article  PubMed  CAS  Google Scholar 

  • Mitchell, M.D. and Flint, A.P.F. (1978a) Prostaglandin production by intra-uterine tissues from periparturient sheep: use of a super-fusion technique. Journal of Endocrinology, 76, 111–121.

    Article  PubMed  CAS  Google Scholar 

  • Mitchell, M.D. and Flint, A.P.F. (1978b) Use of meclofenamic acid to investigate the role of prostaglandin biosynthesis during induced parturition in sheep. Journal of Endocrinology, 76, 101–109.

    Article  PubMed  CAS  Google Scholar 

  • Molina, R.D., Meschia, G., Battaglia, F.C. and Hay, W. W. (1991) Gestational maturation of pla-cental glucose transfer capacity in sheep. American Journal of Physiology, 261, 697–704.

    Google Scholar 

  • Moll, W. (1972) Gas exchange in concurrent, coun-tercurrent and crosscurrent flow systems. The concept of the fetoplacental flow unit, in Respiratory Gas Exchange and Blood Flow in the Placenta, (eds L.D. Longo and H. Bartels), US DHEW Publication No. (NIH), pp. 73-361

    Google Scholar 

  • Moll, W. (1985) Physiological aspects of placental ontogeny and phytogeny. Placenta, 6, 141–154.

    Article  PubMed  CAS  Google Scholar 

  • Moore, H.D.M., Gems, S. and Hearn, J.P. (1985) Early implantation stages in the marmoset monkey (Callithrix jacchus). American Journal of Anatomy, 172, 265–278.

    Article  PubMed  CAS  Google Scholar 

  • Morgan, G. and Wooding, F.B.P. (1983) Cell migration in the ruminant placenta, a freeze fracture study. Journal of Ultrastructure Research, 83, 148–160.

    Article  PubMed  CAS  Google Scholar 

  • Morgan, G., Wooding, F.B.P. and Brandon, M.R. (1987) Immunogold localisation of placental lac-togen and the SBU3 antigen by ultracryomicro-tomy at implantation in the sheep. Journal of Cell Science, 88, 503–512.

    PubMed  Google Scholar 

  • Morgan, G., Whyte, A. and Wooding, F.B.P. (1990) Characterisation of the synthetic capacities of isolated binucleate cells from sheep and goats. Anatomical Record, 226, 27–36.

    Article  PubMed  CAS  Google Scholar 

  • Morrish, D.W., Marusyk, H. and Siy, O. (1987) Demonstration of specific secretory granules for human choriogonadotrophin in the placenta. Journal of Histochemistry and Cytochemistry, 35, 93–101.

    Article  PubMed  CAS  Google Scholar 

  • Morrish, D.W., Marusyk, H. and Bhardwaj, D. (1988) Ultrastructural localisation of hPL in distinctive granules in human term placenta: comparison with granules containing hCG. Journal of Histochemistry and Cytochemistry, 36, 193–197.

    Article  PubMed  CAS  Google Scholar 

  • Morriss, F.H. and Boyd, R.D.H. (1988) Placental transport, in Physiology of Reproduction, Chapter 50 (eds E. Knobil and J. Neill), Raven Press, New York.

    Google Scholar 

  • Morton, W.R.M. (1961) Observations on the full term foetal membranes of the three members of the Camelidae (Camelus dromedarius L., C. bac-trianus L. and Lama glama L.). Journal of Anatomy, 95, 200–209.

    PubMed  CAS  Google Scholar 

  • Mossman, H.W. (1926) The rabbit placenta and the problem of placental transmission. American Journal of Anatomy, 37, 433–497.

    Article  Google Scholar 

  • Mossman, H.W. (1937) Comparative morphogenesis of the fetal membranes and accessory uterine structures. Carnegie Institute Contributions to Embryology, 26, 129–246.

    Google Scholar 

  • Mossman, H.W. (1965) The principal interchange vessels of the chorioallantoic placenta of mammals, in Organogenesis (eds R.L. De Haan and H. Ursprung), Holt Rinehart Wilson, New York, pp. 771–786.

    Google Scholar 

  • Mossman, H.W. (1987) Vertebrate Fetal Membranes, Rutgers University Press, New Brunswick, New Jersey.

    Google Scholar 

  • Moxon, L.A., Wildt, A.E. and Slade, B.S. (1976) Localization of proteins in coated micropinocy-totic vesicles during transport across rabbit yolk sac endoderm. Cell and Tissue Research, 171, 175–193.

    Article  PubMed  CAS  Google Scholar 

  • Munro, H.N. (1980) Placenta in relation to nutrition. Federation Proceedings, 39, 236–238.

    PubMed  CAS  Google Scholar 

  • Munro, H.N. (1986) Role of the placenta in ensuring fetal nutrition. Federation Proceedings, 45, 2500–2501.

    PubMed  CAS  Google Scholar 

  • Munson, L., Wilkinson, J.E. and Schlafer, D.H. (1990) Effects of substrata on the polarisation of bovine endometrial epithelial cells in vitro. Cell and Tissue Research, 261, 155–161.

    Article  PubMed  CAS  Google Scholar 

  • Murthy, A.S., Schellenberg, C. and Friesen, H.G. (1982) Purification and characterisation of bovine placental lactogen. Endocrinology, III, 2117–2174.

    Article  Google Scholar 

  • Musah, A.I., Schwabe, C., Willham, R.L. and Anderson, L.L. (1987) Induction of parturition, progesterone secretion and delivery of placenta in beef heifers given relaxin with cloprostenol or dexamethasone. Biology of Reproduction, 37, 797–803.

    Article  PubMed  CAS  Google Scholar 

  • Nathanielsz, P.W. (1980) Animal Models in Fetal Medicine, Elsevier, North Holland, Amsterdam.

    Google Scholar 

  • Nelson, D.M., Otman Nabi, J. and Curran, E.M. (1986) Morphology and glycoprotein synthesis of uterine gland epithelium in human basal plate at term: an ultrastructural and autoradio-graphic study. Anatomical Record, 216, 146–153.

    Article  PubMed  CAS  Google Scholar 

  • Nephew, K.P., McClure, K.E., Day, M.L., Xie, S., Roberts, R.M. and Pope, W.F. (1990) Effects of intramuscular administration of recombinant bovine interferon alpha-1 during the period of maternal recognition of pregnancy. Journal of Animal Science, 68, 2776–2780.

    Google Scholar 

  • Nieder, G.L. and Jenne, L. (1990) Production of mouse placental lactogen-1 by trophoblast giant cells in utero and in vitro. Endocrinology, 126, 2809–2814.

    Article  PubMed  CAS  Google Scholar 

  • O’Shea, J.D., Kleinfeld, F.G. and Morrow, H.A. (1983) Ultrastructure of decidualisation in the pseudopregnant rat. American Journal of Anatomy, 166, 271–298.

    Article  PubMed  Google Scholar 

  • Ockleford, C.D. and Menon, G. (1977) Differentiated regions of human placental cell surface associated with exchange of materials between maternal and fetal blood: a new organelle and the binding of iron. Journal of Cell Science, 25, 279–291.

    PubMed  CAS  Google Scholar 

  • Oduor-Okelo, D. (1984a) Histology of chorioallan-toic placenta of the golden rumped elephant shrew (Rhyncocyon chrysopygus). Anatomische Anzeiger, 157, 395–407.

    CAS  Google Scholar 

  • Oduor-Okelo, D. (1984b) An electron microscopy study of the chorioallantoic placenta and subpla-centa of the cane rat (Thryonomys swivinderianus Temminck). Placenta, 5, 433–442.

    Article  PubMed  CAS  Google Scholar 

  • Oduor-Okelo, D. and Neaves, W.B. (1982) The chorioallantoic placenta of the spotted hyena (Crocuta, crocuta Erxleben): an electron microscopy study. Anatomical Record, 204, 215–222.

    Article  PubMed  CAS  Google Scholar 

  • Oduor-Okelo, D., Musewe, U.O. and Gombe, S. (1983) Electron microscopic study of the chorioallantoic placenta of the rock hyrax (Hetero-hyrax brunei). Journal of Reproduction and Fertility, 68, 311–316.

    Article  PubMed  CAS  Google Scholar 

  • Ogren, L. and Talamantes, F. (1988) Placental lac-togens of pregnancy and their cellular source. International Review of Cytology, 112, 1–65.

    Article  PubMed  CAS  Google Scholar 

  • Ogren, L., Southard, J.N., Colosi, P., Linzer, D.I.H. and Talamantes, F. (1989) Mouse placental lactogen-I: RIA and gestational profiles in maternal serum. Endocrinology, 125, 2253–2257.

    Article  PubMed  CAS  Google Scholar 

  • Ogura, A., Nishida, T., Hayashi, Y. and Mochida, K. (1991) The development of the uteroplacental vascular system in the golden hamster Meso-cricetus auratus. Journal of Anatomy, 175, 65–77.

    PubMed  CAS  Google Scholar 

  • Oksenberg, J.R., Moryosef, S., Persitz, E., Schenker, Y., Mozes, E. and Brantbar, C. (1986) Antigen presenting cells in human decidual tissue. American Journal of Reproduction and Immunological Microbiology, 11, 82–88.

    CAS  Google Scholar 

  • Owens, J.A. (1991) Endocrine and substance control of fetal growth: placental and maternal influences and IGFs. Reproduction, Fertility and Development, 3, 501–518.

    Article  CAS  Google Scholar 

  • Owers, N.O. (1960) The endothelio-endothelial placenta of the Indian musk shrew, Suncus murinus — a new interpretation. American Journal of Anatomy, 106, 1–25.

    Article  PubMed  CAS  Google Scholar 

  • Owiti, G.E.O., Tarava, R.P. and Hendrickx, A.G. (1989) Fetal membranes and placenta of the afri-can green monkey Cercopithecus daethiops. Anatomy and Embryology, 179, 591–604.

    Article  PubMed  CAS  Google Scholar 

  • Owiti, G.E.O., Cukierski, M., Tarara, R.P., Enders, A.C. and Hendrick, A.G. (1986) Early placentation in the African green monkey (Cercopithecus aethiops). Acta Anatomica, 127, 184–194.

    Article  PubMed  CAS  Google Scholar 

  • Padykula, H.A. and Taylor, J.M. (1976) Ultrastructural evidence for loss of the tropho-blast layer in the chorioallantoic placenta of Australian bandicoots (Marsupialia; Peramelidae). Anatomical Record, 186, 357–386.

    Article  PubMed  CAS  Google Scholar 

  • Panigel, M. (1956) Contribution a l’étude de l’ovo-viviparité chez les reptiles: Gestation et parturition chez le lézard Zootoca vivipara. Annales des Sciences Naturelles Zoologie, XI 18, 569–668.

    Google Scholar 

  • Parr, E.L., Parr, M.B. and Young, J.D. (1987) Localisation of a pore forming protein (Perform) in granulated metrial gland cells. Biology of Reproduction, 37, 1327–1335.

    Article  PubMed  CAS  Google Scholar 

  • Parr, M.B. and Parr, E.L. (1986) Permeability of the primary decidual zone (PDZ) in the rat uterus: studies using fluorescent labelled proteins and dextrans. Biology of Reproduction, 34, 393–403.

    Article  PubMed  CAS  Google Scholar 

  • Parr, M.B. and Parr, E.L. (1989) The implantation reaction, in Biology of Uterus, 2nd edn (eds R.M. Wynn and W.P. Jollie), Plenum Press, New York, pp. 233–278.

    Chapter  Google Scholar 

  • Parr, M.B., Tung, H.N. and Parr, E.L. (1986) The ultrastructure of the rat primary decidual zone. American Journal of Anatomy, 176, 423–436.

    Article  PubMed  CAS  Google Scholar 

  • Pashen, R.L., Sheldrick, E.L., Allen, W.R. and Flint, A.P.F. (1983) Dehydroepiandrosterone synthesis by the foetal foal and its importance as an oestrogen precursor. Journal of Reproduction and Fertility, Suppl. 32, 389–397.

    Google Scholar 

  • Patillo, R.A., Hussa, R.O., Yorde, D.E. and Cole, L.A. (1983) Hormone synthesis by normal and neoplastic human trophoblast, in Biology of Trophoblast (eds Y.W. Loke and A. Whyte), Elsevier, Amsterdam, pp. 283–316.

    Google Scholar 

  • Peel, S. (1989) Granulated metrial gland cells. Advances in Anatomy, Embryology and Cell Biology, 115, 1–112.

    Article  CAS  Google Scholar 

  • Peel, S. and Stewart, I. (1979) Ultrastructural changes in the rat metrial gland in the latter half of pregnancy. Anatomy and Embryology, 155, 209–219.

    Article  PubMed  CAS  Google Scholar 

  • Peel, S. and Stewart, J. (1986) Oestrogen and the differentiation of granulated metrial gland cells in chimeric mice. Journal of Anatomy, 144, 181–187.

    PubMed  CAS  Google Scholar 

  • Peel, S., Stewart, I.G. and Bulmer, D. (1979) Metrial gland cells in deciduomata of pseudo-pregnancy. Journal of Anatomy, 129, 21–30.

    PubMed  CAS  Google Scholar 

  • Peel, S., Stewart, I.G. and Bulmer, D. (1983) Experimental evidence for the bone marrow origin of granulated metrial gland cells of the mouse uterus. Cell and Tissue Research, 233, 647–656.

    Article  PubMed  CAS  Google Scholar 

  • Perry, J.S. (1974) Implantation of fetal membranes and early placentation of the African elephant Loxodonta africana. Philosophical Transactions of the Royal Society, B 269, 109–135.

    Article  CAS  Google Scholar 

  • Perry, J.S. (1981) The mammalian fetal membranes. Journal of Reproduction and Fertility, 62, 321–335.

    Article  PubMed  CAS  Google Scholar 

  • Perry, J.S. and Rowlands, I.W. (1962) Early pregnancy in the pig. Journal of Reproduction and Fertility, 4, 175–188.

    Article  Google Scholar 

  • Perry, J.S., Heap, R.B. and Ackland, N. (1975) The ultrastructure of the sheep placenta around the time of parturition. Journal of Anatomy, 120, 561–570.

    PubMed  CAS  Google Scholar 

  • Pijnenborg, R., Dixon, G., Robertson, W.B. and Brosens, I. (1980) Trophoblast invasion of human decidua from 8-18 weeks of pregnancy. Placenta, 1, 3–19.

    Article  PubMed  CAS  Google Scholar 

  • Pijnenborg, R., Robertson, W.B., Brosens, I. and Dixon, G. (1981) Trophoblast invasion and the establishment of hemochorial placentation in man and laboratory animals. Placenta, 2, 71–92.

    Article  PubMed  CAS  Google Scholar 

  • Pijnenborg, R., Robertson, W.B., Brosens, I. and Dixon, G. (1983) Uteroplacental arterial changes related to interstitial trophoblast migration in early human pregnancy. Placenta, 4, 397–414.

    Article  PubMed  CAS  Google Scholar 

  • Polge, C., Rowson, L.E.A. and Chang, M.C. (1966) The effect of reducing the number of embryos during the early stages of gestation on the maintenance of pregnancy in the pig. Journal of Reproduction and Fertility, 12, 395–397.

    Article  PubMed  CAS  Google Scholar 

  • Porter, D.G. (1967) Observations on the development of mouse blastocysts transferred to the testis and kidney. American Journal of Anatomy, 121, 73–85.

    Article  PubMed  CAS  Google Scholar 

  • Porter, D.G., Heap, R.B. and Flint, A.P.F. (1982) Endocrinology of the placenta and the evolution of viviparity. Journal of Reproduction and Fertility, Suppl. 31, 113–138.

    PubMed  CAS  Google Scholar 

  • Potts, D.M. (1968) The ultrastructure of implantation in the mouse. Journal of Anatomy, 103, 77–90.

    PubMed  CAS  Google Scholar 

  • Power, G.G. and Gilbert, R.C. (1977) Umbilical vascular compliance in sheep. American Journal of Physiology, 233, H660–H664.

    PubMed  CAS  Google Scholar 

  • Power, G.G. and Longo, L.D. (1973) Sluice flow in placenta: maternal vascular pressure effects on fetal circulation. American Journal of Physiology, 225, 1490–1496.

    PubMed  CAS  Google Scholar 

  • Prasad, M.R.N., Mossman, H.W. and Scott, G.L. (1979) Morphogenesis of the fetal membranes of an American mole Scalopus aquaticus. American Journal of Anatomy, 155, 31–68.

    Article  PubMed  CAS  Google Scholar 

  • Pusey, J., Kelly, W.A., Bradshaw, J.M.C. and Porter, D.G. (1980) Myometrial activity and the distribution of blastocysts in the uterus of the rat: interference by relaxin. Biology of Reproduction, 23, 394–397.

    Article  PubMed  CAS  Google Scholar 

  • Ralph, M.M., Lee, C.S. and Thorburn, G.D. (1989) Identification and characterisation of monolayer cultures of sheep trophoblast cells maintained in bicameral culture chambers. Biology of Reproduction, 41, 481–489.

    Article  PubMed  CAS  Google Scholar 

  • Ramsey, E.M. (1967) Vascular Anatomy, in Biology of the Uterus (ed. R.M. Wynn), Plenum Press, New York, pp. 59–76.

    Google Scholar 

  • Ramsey, E.M. (1982) The Placenta, Human and Animal, Prager Pub (CBS), New York.

    Google Scholar 

  • Ramsey, E.M. and Donner, M.W. (1980) Placental vasculature and circulation, an atlas and textbook. Thieme, Stuttgart.

    Google Scholar 

  • Ramsey, E.M., Houston, M.L. and Harris, J.W.S. (1976) Interactions of the trophoblast and maternal tissues in three closely related primate species. American Journal of Obstetrics and Gynecology, 124, 647–652.

    PubMed  CAS  Google Scholar 

  • Rankin, J.H.G. (1978) Role of prostaglandins in the maintenance of the placental circulation. Advances in Prostaglandin and Thromboxane Research, 4, 261–269.

    PubMed  CAS  Google Scholar 

  • Rankin, J.H.G. and McLaughlin, M.K. (1979) The regulation of the placental blood flows. Journal of Developmental Physiology, 1, 3–30.

    PubMed  CAS  Google Scholar 

  • Rankin, J.H.G. and Phernetton, T.M. (1976) Effect of prostaglandin E2 on ovine maternal placental blood flow. American Journal of Physiology, 231, 754–765.

    PubMed  CAS  Google Scholar 

  • Rankin, J.H.G. and Schneider, J.M. (1975) Effect of surgical stress on the distribution of placental blood flows. Respiration Physiology, 24, 373–383.

    Article  PubMed  CAS  Google Scholar 

  • Rankin, J.H.G., Meschia, G., Makowski, E.L. and Battaglia, F.C. (1970) Macroscopic distribution of blood flow in the sheep placenta. American Journal of Physiology, 219, 9–16.

    PubMed  CAS  Google Scholar 

  • Rasweiler, J.J. (1979) Early embryonic development and implantation in bats. Journal of Reproduction and Fertility, 56, 403–416.

    Article  PubMed  Google Scholar 

  • Rasweiler, J.J. (1990) Implantation, development of the fetal membranes and placentation in the captive black mastiff bat, Molussus ater. American Journal of Anatomy, 187, 109–136.

    Article  PubMed  Google Scholar 

  • Rasweiler, J.J. (1991) Development of the discoidal hemochorial placenta in the black mastiff bat Molossus ater: evidence for a role of maternal endothelial cells in the control of trophoblastic growth. American Journal of Anatomy, 191, 185–207.

    Article  PubMed  Google Scholar 

  • Rasweiler, J.J. (1993) Pregnancy in chiroptera. Journal of Experimental Zoology, 266, 495–513.

    Article  PubMed  Google Scholar 

  • Rattray, P.V., Garrett, W.N., East, N.E. and Hinman, N. (1974) Growth, development and composition of the ovine conceptus and mammary gland during pregnancy. Journal of Animal Science, 38, 613–626.

    PubMed  CAS  Google Scholar 

  • Raub, T.J., Bazer, F.W. and Roberts, R.M. (1985) Localisation of the iron transport protein utero-ferrin in the porcine endometrium and placenta using immunocolloid gold. Anatomy and Embryology, 171, 253–268.

    Article  PubMed  CAS  Google Scholar 

  • Redman, C.W.G., McMichael, A.J., Stirrat, G.M., Sunderland, C.A. and Ting, A. (1984) Class I MHC antigens on human extravillous tropho-blast. Immunology, 52, 457–468.

    PubMed  CAS  Google Scholar 

  • Reimers, T.J., Ullman, M.B. and Hansel, W. (1985) Progesterone and prostanoid production by bovine binucleate trophoblastic cells. Biology of Reproduction, 33, 1227–1236.

    Article  PubMed  CAS  Google Scholar 

  • Reinius, S. (1967) Ultrastructure of blastocyst attachment in the mouse. Zeitschrift fur Zellforschung Mikroskopie Anatomie, 77L, 257–266.

    Article  Google Scholar 

  • Renegar, R.H., Southard, J.N. and Talamantes, F. (1990) Immunohistochemical colocalisation of placental lactogen II and relaxin in the golden hamster (Mesocricetus auratus). Journal of Histochemistry and Cytochemistry, 38, 935–940.

    Article  PubMed  CAS  Google Scholar 

  • Reng, R. (1977) Die placenta von Microcebus muri-nus. Miller. Zeitschrift fur Süugetierkunde, 42, 201–214.

    Google Scholar 

  • Reynolds, L.P. and Redmer, D.A. (1992) Growth and microvascular development of the uterus during early pregnancy in ewes. Biology of Reproduction, 47, 698–708.

    Article  PubMed  CAS  Google Scholar 

  • Rhodes, L., Cowan, R.G., Nathanielz, P.W. and Reimers, T.J. (1986) Production of progesterone and placental lactogen by ovine binucleate tro-phoblast cells. Biology of Reproduction, 34, Suppl. 1 (abstract no. 84).

    Google Scholar 

  • Rice, G.E. and Thorburn, G.D. (1986) Characterisation of particle associated choriosomatomam-motropin and progesterone in ovine placentomes. Journal of Endocrinology, 111, 217–223.

    Article  PubMed  CAS  Google Scholar 

  • Richart, R. (1961) Studies of placental morphology. A radioautographic study of human placenta utilising tritiated thymidine. Proceedings of the Society for Experimental Biology and Medicine, 106, 829–831.

    PubMed  CAS  Google Scholar 

  • Ricketts, A.P. and Flint, A.P.F. (1980) Onset of synthesis of progesterone by ovine placenta. Journal of Endocrinology, 86, 337–347.

    Article  PubMed  CAS  Google Scholar 

  • Ricketts, A.P., Galil, A.K.A., Ackland, N., Heap, R.B. and Flint, A.P.F. (1980) Activation by corti-costeroids of steroid metabolizing enzymes in ovine placental expiants in vitro. Journal of Endocrinology, 85, 457–469.

    Article  PubMed  CAS  Google Scholar 

  • Riley, S.C., Walton, J.C., Herlick, J.M. and Challis, J.R.G. (1991) The localisation and distribution of CRH in the human placenta and fetal membranes throughout gestation. Journal of Clinical Endocrinology and Medicine, 72, 1001–1007.

    Article  CAS  Google Scholar 

  • Roberts, R.M. (1989) Conceptus interferons and maternal recognition of pregnancy. Biology of Reproduction, 40, 449–452.

    Article  PubMed  CAS  Google Scholar 

  • Roberts, R.M. (1992) Interferons as hormones of pregnancy. Endocrinological Reviews, 13, 432–442.

    CAS  Google Scholar 

  • Roberts, R.M., Godkin, J.D., Bazer, F.W., Fincher, K.B., Thatcher, W.W., Knickerbocker, J.J. and Bartol, F.F. (1985) Antiluteolysins produced by mammalian conceptuses, in Implantation of the Human Embryo (eds R.G. Edwards, J.M. Purdy and P.C. Steptoe), Academic Press, London, pp. 253–273.

    Google Scholar 

  • Roberts, R.M., Farin, C.E. and Cross, J.C. (1990) Trophoblast proteins and maternal recognition of pregnancy. Oxford Review of Reproductive Biology, 12, 147–180.

    CAS  Google Scholar 

  • Robinson, J.S., Kingston, E.J., Jones, C.T. and Thorburn, G.D. (1979) Studies on experimental growth retardation in sheep. The effect of removal of endometrial caruncles on fetal size and metabolism. Journal of Developmental Physiology, 1, 379–398.

    PubMed  CAS  Google Scholar 

  • Robertson, W.B., Khong, T.Y., Brosens, C.I., Dewolf, F., Sheppard, B.L. and Bonnar, J. (1986) The placental bed biopsy: review from three european centres. American Journal of Obstetrics and Gynecology, 155, 401–412.

    PubMed  CAS  Google Scholar 

  • Rodewald, R. and Kraehenbuhl, J.P. (1984) Receptor mediated transport of IgG. Journal of Cell Biology, 99, 159–164.

    Article  Google Scholar 

  • Rosen, S.W. (1986) New placental proteins: chemistry, physiology and clinical use. Placenta, 7, 575–594.

    Article  PubMed  CAS  Google Scholar 

  • Rossant, J. and Frels, W.I. (1980) Interspecific chimaeras in mammals: successful production of live chimaeras between Mus musculus and Mus caroli. Science, 208, 419–421.

    Article  PubMed  CAS  Google Scholar 

  • Rossman, I. (1940) The deciduomal reaction in the Rhesus monkey (Macaca mulatto). American Journal of Anatomy, 66, 277–366.

    Article  Google Scholar 

  • Rowson, L.E.A. and Moor, R.M. (1966) Development of the sheep conceptus during the first 14 days. Journal of Anatomy, 100, 777–785.

    PubMed  CAS  Google Scholar 

  • Rugh, R. (1975) The Mouse: its Reproduction and Development, Burgess Publishing, Minneapolis, USA.

    Google Scholar 

  • Sakbun, V., Roay, E.S.C. and Bryant-Greenwood, G.D. (1987) Immunocytochemical localisation of prolactin and relaxin C peptide in human deci-dua and placenta. Journal of Clinical Endocrinology and Medicine, 65, 339–343.

    Article  CAS  Google Scholar 

  • Salamonsen, L.A., Stuchbery, S.J., Ogrady, C.M., Godkin, J.D. and Finlay, J.K. (1988) Interferon a mimics effects of ovine trophoblast protein-1 on prostaglandin and protein secretion by ovine endometrial cells in vitro. Journal of Endocrinology, 117, R1–R4.

    Article  PubMed  CAS  Google Scholar 

  • Samuel, C.A. and Perry, J.S. (1972) The ultrastructure of pig trophoblast transplanted to an ectopic site in the uterine wall. Journal of Anatomy, 113, 139–149.

    PubMed  CAS  Google Scholar 

  • Samuel, C.A., Allen, W.R. and Steven, D.H. (1974) Studies on the equine placenta. I. Development of the microcotyledons. Journal of Reproduction and Fertility, 41, 441–445.

    Article  PubMed  CAS  Google Scholar 

  • Samuel, CA., Jack, P.M.B. and Nathanielsz, P.W. (1975) Ultrastructural studies of the rabbit placenta in the last third of gestation. Journal of Reproduction and Fertility, 45, 9–14.

    Article  PubMed  CAS  Google Scholar 

  • Samuel, CA., Allen, W.R. and Steven, D.H. (1976) Studies on the equine placenta. II. Ultrastructure of the placental barrier. Journal of Reproduction and Fertility, 48, 257–264.

    Article  PubMed  CAS  Google Scholar 

  • Sands, J. and Dobbing, J. (1985) Continued growth and development of the third trimester human placenta. Placenta, 6, 13–22.

    Article  PubMed  CAS  Google Scholar 

  • Sasser, R.A. and Ruder, C.A. (1987) Detection of early pregnancy in domestic ruminants. Journal of Reproduction and Fertility, 34, 261–271.

    PubMed  CAS  Google Scholar 

  • Sasser, R.G., Crock, J., Runder, A. and Montgomery, C.A. (1989) Characteristics of PSPB in cattle. Journal of Reproduction Fertility, Suppl. 37, 109–113.

    CAS  Google Scholar 

  • Schaerer, E., Neutra, M.R., Kraehenbuhl, J.-P. (1991) Topical review: Molecular and cellular mechanisms involved in transepithelial transport. Journal of Molecular Biology, 123, 93–103.

    CAS  Google Scholar 

  • Schiebler, T.H. and Kaufmann, P. (1981) Reifeplazenta, in Die Plazenta des Menschen, (eds V. Becker, T.H. Schiebler and F. Kubli), Thieme, New York.

    Google Scholar 

  • Schindler, V.F. and DeVries, U. (1987) Protein uptake and transport by trophotaeniae absorptive cells in two Goodeid embryos. Journal of Experimental Zoology, 241, 17–29.

    Article  CAS  Google Scholar 

  • Schindler, J.F. and Hamlett, W.C (1993) Maternal-embryonic relations in Viviparous Teleosts. Journal of Experimental Zoology, 266, 378–393.

    Article  Google Scholar 

  • Schlafke, S. and Enders, A.C. (1975) Cellular basis of interaction between trophoblast and uterus at implantation. Biology of Reproduction, 12, 41–65.

    Article  PubMed  CAS  Google Scholar 

  • Schlafke, S., Welsh, A.O. and Enders, A.C. (1985) Penetration of the basal lamina of the uterine luminal epithelium during implantation in the rat. Anatomical Record, 212, 47–56.

    Article  PubMed  CAS  Google Scholar 

  • Schlernitzauer, D.A. and Gilbert, P.W. (1966) Placentation and associated aspects of gestation in the bonnethead shark Sphyrna tiburo. Journal of Morphology, 120, 219–232.

    Article  PubMed  CAS  Google Scholar 

  • Schonecht, P.A., Currie, W.B. and Bell, A.W. (1992) Kinetics of PL in mid and late gestation fetuses. Journal of Endocrinology, 133, 95–100.

    Article  Google Scholar 

  • Schuhmann, R.A. (1982) Histochemical and electron microscopical studies of maternofetal circulatory units of mature human placentas. Obstetrics and Gynecology Annual, 11, 1–31.

    PubMed  CAS  Google Scholar 

  • Seeburg, P.H. and Adelman, J.P. (1984) Characterization of cDNA for precursor of human luteinizing hormone releasing hormone. Nature (London), 311, 666–668.

    Article  CAS  Google Scholar 

  • Shanklin, D.R. and Sibai, B.M. (1989) Ultra-structural aspects of preeclampsia. 1. Placental bed and uterine boundary vessels. American Journal of Obstetrics and Gynecology, 161, 735–741.

    PubMed  CAS  Google Scholar 

  • Sharp, D.C, McDowell, K.J., Weithenauer, J. and Thatcher, W. W. (1989) The continuum of events leading to maternal recognition of pregnancy in mares. Journal of Reproduction and Fertility, Suppl. 37, 101–107.

    PubMed  CAS  Google Scholar 

  • Sheldrick, E.L., Ricketts, A.P. and Flint, A.P.F. (1980) Placental production of progesterone in ovariectomized goats treated with a synthetic progestagen to maintain pregnancy. Journal of Reproduction and Fertility, 60, 339–348.

    Article  PubMed  CAS  Google Scholar 

  • Sheldrick, E.L., Ricketts, A.P. and Flint, A.P.F. (1981) Placental production of 5β-pregnane-3α,20α-diol in goats. Journal of Endocrinology, 90, 151–158.

    Article  PubMed  CAS  Google Scholar 

  • Shemesh, M. (1990) Production and regulation of progesterone in bovine CL and placenta in mid and late gestation: a personal review. Reproduction, Fertility and Development, 2, 129–135.

    Article  CAS  Google Scholar 

  • Shennan, D.B. and Boyd, C.A.R. (1987) Ion transport by the placenta: a review of membrane transport systems. Biochemica et Biophysica Acta, 906, 437–457.

    Article  CAS  Google Scholar 

  • Sherman, M.I. (1983) Endocrinology of rodent tro-phoblast cells, in Biology of Trophoblast (eds C. Lokeand A. Whyte), Elsevier, Amsterdam, pp. 402–460.

    Google Scholar 

  • Sherwood, O.D. (1988) Relaxin, in Physiology of Reproduction, Chapter 16 (eds E. Knobil and J. Neill), Raven Press, New York.

    Google Scholar 

  • Shimizu, T., Tsutsui, T. and Orima, H. (1990) Incidence of transuterine migration of embryos in the dog. Japanese Journal of Veterinary Science, 52, 1273–1275.

    Article  PubMed  CAS  Google Scholar 

  • Shine, J., Seeburg, P.H., Martial, J.A., Baxter, J.D. and Goodman, H. (1977) Construction and analysis of ‘recombinant DNA for human chori-onic somatomammotropin’. Nature (London), 270, 494–499.

    Article  CAS  Google Scholar 

  • Shine, R. and Bull, J.J. (1979) The evolution of live bearing in lizards and snakes. American Naturalist, 113, 905–923.

    Article  Google Scholar 

  • Shine, R. and Guillette, L.J. (1988) The evolution of viviparity in reptiles; a physiological model and its ecological consequences. Journal of Theoretical Biology, 132, 43–50.

    Article  Google Scholar 

  • Sibley, C.P. and Boyd, R.D.H. (1988) Control of transfer across the mature placenta. Oxford Reviews of Reproductive Biology, 10, 382–435.

    PubMed  CAS  Google Scholar 

  • Siler-Khodr, T.M. (1983) Hypothalamic-like releasing hormones of the placenta. Clinics in Perinatology, 10, 553–566.

    PubMed  CAS  Google Scholar 

  • Siler-Khodr, T.M. and Khodr, G.S. (1978) Content of lutenizing hormone releasing factor in the human placenta. American Journal of Obstetrics and Gynecology, 130, 216–219.

    PubMed  CAS  Google Scholar 

  • Silver, M. and Steven, D. (1975) Placental exchange of blood gases, in Comparative Placentation (ed. D. Steven), Academic Press, London, pp. 161–188.

    Google Scholar 

  • Silver, M., Steven, D.H. and Comline, R.S. (1973) Placental exchange and morphology in ruminants and the mare, in Foetal and Neonatal Physiology (eds R.S. Comline, K.W. Cross, G.S. Dawes and P.W. Nathanielz), Cambridge University Press, Cambridge, pp. 245–271.

    Google Scholar 

  • Silver, M., Barnes, R.J., Comline, R.S. and Burton, G.J. (1982) Placental blood flow: some fetal and maternal cardiovascular adjustments during gestation. Journal of Reproduction and Fertility, Suppl. 31, 139–160.

    PubMed  CAS  Google Scholar 

  • Simpson, R.A., Mayhew, T.M. and Barnes, P.R. (1992) From 13 weeks to term the trophoblast of the human placenta grows by the continuous recruitment of new proliferative units: A study of nuclear number using the disector. Placenta, 13, 501–512.

    Article  PubMed  CAS  Google Scholar 

  • Sinha, A.A. and Erickson, A.W. (1974) Ultrastructure of the placenta of the Antarctic seals during the first third of pregnancy. American Journal of Anatomy, 141, 263–280.

    Article  PubMed  CAS  Google Scholar 

  • Sinha, A.A., Seal, U.S., Erickson, A.W. and Mossman, H.W. (1969) Morphogenesis of the fetal membranes of the white tailed deer. American Journal of Anatomy, 126, 201–242.

    Article  PubMed  CAS  Google Scholar 

  • Sinowatz, F. and Friess, A.E. (1983) Uterine glands of the pig during pregnancy. An ultra-structural and cytochemical study. Anatomy and Embryology, 166, 121–134.

    Article  PubMed  CAS  Google Scholar 

  • Skolek-Winnisch, R., Lipp, W., Sinowatz, F. and Friess, A.E. (1985) Enzymhistochemische Untersuchungen an der Schweine placenta. II. Histotopik von Enzymen in den areolaren placenta epithelien. Acta Histochemica, 76, 131–143.

    Article  PubMed  CAS  Google Scholar 

  • Smith, C.A. and Moore, H.D.M. (1990) An ultra-structural study of early chorionic villus formation in the marmoset monkey (Callithrix jacchus). Anatomy and Embryology, 181, 59–66.

    Article  PubMed  CAS  Google Scholar 

  • Smith, CA., Moore, H.D.M. and Hearn, J.P. (1987) The ultrastructure of early implantation in the marmoset monkey (Callithrix jacchus). Anatomy and Embryology, 175, 399–410.

    Article  PubMed  CAS  Google Scholar 

  • Smith, C.E., Cullen, W.C. and Godkin, J.D. (1990) Ultrastructural morphometric analysis of the uterine epithelium during early pregnancy in the sheep. Journal of Reproduction and Fertility, 89, 517–525.

    Article  PubMed  CAS  Google Scholar 

  • Snow, M.A.L. and Ansell, J.D. (1974) The chromosomes of giant trophoblast cells of the mouse. Proceedings of the Royal Society, B 187, 93–98.

    Article  CAS  Google Scholar 

  • Soares, M.J. (1987) Developmental changes in the intraplacental distribution of PL and alkaline phosphatase in the rat. Journal of Reproduction and Fertility, 79, 93–98.

    Article  PubMed  CAS  Google Scholar 

  • Soares, M.J., Colosi, P., Ogren, L. and Talamantes, F. (1983) Identification and partial characterisation of a lactogen from the midpreg-nant mouse conceptus. Endocrinology, 112, 1313–1317.

    Article  PubMed  CAS  Google Scholar 

  • Soares, M.J., Faria, T.N., Roby, K.F. and Deb, S. (1991) Pregnancy and the PRL family of hormones: coordination of anterior pituitary, uterine and placental expression. Endocrinological Reviews, 12, 402–423.

    Article  CAS  Google Scholar 

  • Sooranna, S.R. and Contractor, S.F. (1991) Vectorial transcytosis of IgG by human term trophoblast cells in culture. Experimental Cell Research, 192, 41–46.

    Article  PubMed  CAS  Google Scholar 

  • Southard, J.N. and Talamantes, F. (1991) Placental PRL-like proteins in rodents: variations on a structural theme. Molecular and Cellular Endocrinology, 79, C133–C140.

    Article  PubMed  CAS  Google Scholar 

  • Sparks, J.W., Lynch, A. and Glinsmann, W.H. (1976) Regulation of rat liver glycogen synthesis and activities of glycogen cycle enzymes by glucose and galactose. Metabolism, 25, 47–55.

    Article  PubMed  CAS  Google Scholar 

  • Starck, D. (1949) Einbeitrag zur Kenntnis der Placentation bei der Macrosceliden. Zeitschrift fur Anatomie Entwicklungs Geschichte, 114, 319–339.

    Article  Google Scholar 

  • Steele, P.A., Flint, A.P.F. and Turnbull, A.C. (1976) Activity of steroid C-17,20 lyase in the ovine placenta: effect of exposure to foetal glu-cocorticoid. Journal of Endocrinology, 69, 239–246.

    Article  PubMed  CAS  Google Scholar 

  • Steer, H. (1971) Implantation of the rabbit blasto-cyst: the adhesive phase of implantation. Journal of Anatomy, 109, 215–227.

    PubMed  CAS  Google Scholar 

  • Stegemann, J.H.J. (1974) Placental development in the sheep and its relation to fetal development. A qualitative and quantitative anatomic and histologie study. Bijdragen tot de Dierkunde (Contributions to Zoology), 44, 3–72.

    Google Scholar 

  • Stegink, L.D., Pitkin, R.M., Reynolds, W.A., Filer, L.J., Boaz, D.P. and Brummel, A.C. (1975) Placental transfer of glutamate and its metabolite in the primate. American Journal of Obstetrics and Gynecology, 122, 170.

    Google Scholar 

  • Stegink, L.D., Pitkin, R.M., Reynolds, W.A., Brummel, M.C. and Filer, L.J. (1979) Placental transfer of aspartate and its metabolites in the primate. Metabolism, 28, 669–676.

    Article  PubMed  CAS  Google Scholar 

  • Steinman, R.M., Mellman, I.S., Muller, W.A. and Cohn, Z. A. (1983) Endocytosis and the recycling of the plasma membrane. Journal of Cell Biology, 96, 1–27.

    Article  PubMed  CAS  Google Scholar 

  • Stephens, R.J. (1962) Histology and histo-chemistry of the placenta and fetal membranes of the bat Tadarida brasiliensis cynocephala. American Journal of Anatomy, 111, 239–285.

    Article  Google Scholar 

  • Stephens, R.J. (1969) The development and fine structure of the allantoic placental barrier in the bat Tadarida brasiliensis cynocephala. Journal of Ultrastructure Research, 28, 371–398.

    Article  PubMed  CAS  Google Scholar 

  • Stephens, R.J. and Cabrai, L. (1971) Direct contribution of the cytotrophoblast to the syncytio-trophoblast in the diffuse labyrinthine endotheliochorial placenta of the bat. Anatomical Record, 169, 243–252.

    Article  PubMed  CAS  Google Scholar 

  • Stephens, R.J. and Cabrai, L.J. (1972) The diffuse labyrinthine endotheliodichorial placenta of the free tailed bat: a light and electron microscopy study. Anatomical Record, 172, 221–252.

    Article  PubMed  CAS  Google Scholar 

  • Steven, D.H. (1966) Further observations on placental circulation in the sheep. Journal of Physiology, London, 187, 18P–19P.

    Google Scholar 

  • Steven, D.H. (ed.) (1975a) Comparative Placentation, Academic Press, New York.

    Google Scholar 

  • Steven, D.H. (1975b) Separation of the placenta in the ewe: an ultrastructural study. Quarterly Journal of Experimental Physiology, 60, 37–44.

    CAS  Google Scholar 

  • Steven, D.H. (1982) Placentation in the mare. Journal of Reproduction and Fertility, 31, 41–55.

    PubMed  CAS  Google Scholar 

  • Steven, D.H. (1983) Interspecies differences in the structure and function of trophoblast, in Biology of Trophoblast, (eds C. Loke and A. Whyte), Elsevier, Amsterdam, pp. 111–136.

    Google Scholar 

  • Steven, D.H. and Samuel, C. A. (1975) Anatomy of the placental barrier in the mare. Journal of Reproduction and Fertility, Suppl. 23, 579–582.

    PubMed  Google Scholar 

  • Steven, D.H., Bass, F., Jansen, C.J.M., Krane, E.J., Mallon, K., Samuel, C.A., Thomas, A.L. and Nathanielz, P.W. (1978) Ultrastructural changes in the placenta of the ewe after fetal pituitary stalk section. Quarterly Journal of Experimental Physiology, 634, 221–231.

    Google Scholar 

  • Steven, D.H., Jeffcoat, L.B., Mallon, K.A., Ricketts, S.W., Rossdale, P.D. and Samuel, C. A. (1979) Ultrastructural studies of the equine uterus and placenta following parturition. Journal of Reproduction and Fertility, 17, 579–586.

    Google Scholar 

  • Steven, D.H., Burton, G.J., Kumar, J. and Nathanielsz, P.W. (1980a) Ultrastructural observations on the placenta of the alpaca (Lama pacos). Placenta, 1, 21–32.

    Article  PubMed  CAS  Google Scholar 

  • Steven, D.H., Mallon, K.A. and Nathanielsz, P.W. (1980b) Sheep trophoblast in monolayer culture. Placenta, 1, 209–221.

    Article  PubMed  CAS  Google Scholar 

  • Stewart, C.L., Kaspar, P., Brunet, L.J., Bhatt, H., Gadi, I., Kontgen, F. and Abbondanzo, S.J. (1992) Blastocyst implantation depends upon maternal expression of LIF. Nature, 359, 76–78.

    Article  PubMed  CAS  Google Scholar 

  • Stewart, H.J., Jones, D.S.C., Pascall, J.C., Popkin, R.M. and Flint, A.P.F. (1988) The contributions of recombinant DNA techniques to reproductive biology. Journal of Reproduction and Fertility, 83, 1–57.

    Article  PubMed  CAS  Google Scholar 

  • Stewart, H.J., McCann, S.H.E., Barker, P.J., Lee, K.E., Lamming, G.E. and Flint, A.P.F. (1987) Interferon sequence homology and receptor binding activity of ovine trophoblast anti-luteolytic protein. Journal of Endocrinology, 115, R13–R15.

    Article  PubMed  CAS  Google Scholar 

  • Stewart, I. (1984) A morphological study of granulated metrial gland cells and trophoblast cells in the labyrinthine placenta of the mouse. Journal of Anatomy, 139, 627–638.

    PubMed  Google Scholar 

  • Stewart, I. (1985) Granulated metrial gland cells in the lungs of mice in pregnancy and pseudopreg-nancy. Journal of Anatomy, 140, 551–563.

    PubMed  Google Scholar 

  • Stewart, I. and Peel, S. (1977) The structure and differentiation of granulated metrial gland cells of the pregnant mouse uterus. Cell and Tissue Research, 184, 517–527.

    Article  PubMed  CAS  Google Scholar 

  • Stewart, J.R. (1993) Yolk sac placentation in reptiles: structural innovation in a fundamental vertebrate fetal nutritional system. Journal of Experimental Zoology, 266, 431–449.

    Article  Google Scholar 

  • Stewart, J.R. and Blackburn, D.G. (1988) Reptilian placentation: structural diversity and terminology. Copeia, 4, 839–852.

    Article  Google Scholar 

  • Strain, A.J., Hill, D.J., Swenne, I. and Milner, R.D.G. (1987) Regulation of DNA synthesis in human fetal hepatocytes by PL, GH, and insulin like growth factor I/somatomedin C. Journal of Cellular Physiology, 132, 33–40.

    Article  PubMed  CAS  Google Scholar 

  • Strickland, S. and Richards, W.G. (1992) Invasion of the trophoblasts. Cell, 71, 355–357.

    Article  PubMed  CAS  Google Scholar 

  • Stroband, H.W.J., Taverne, N., Largenfeld, K. and Barends, P.M.G. (1986) The ultrastructure of the uterine epithelium of the pig during the estrous cycle and early pregnancy. Cell and Tissue Research, 246, 81–89.

    Article  PubMed  CAS  Google Scholar 

  • Stulc, J. (1989) Extracellular transport pathways in the hemochorial placenta. Placenta, 10, 113–119.

    Article  PubMed  CAS  Google Scholar 

  • Sturgess, I. (1948) The early embryology and placenta of Procavia capensis (Hyrax). Acta Zoologica, 29, 393–479.

    Article  Google Scholar 

  • Summers, P.M., Shephard, A.M., Hodges, J.K., Kydd, J., Boyle, M.S. and Allen, W.R. (1987) Successful transfer of the embryos of Przewalski’s horses (Equus przewalskii) and Grant’s zebra (E. birchelli) to domestic mares (E. caballus). Journal of Reproduction and Fertility, 80, 13–20.

    Article  PubMed  CAS  Google Scholar 

  • Tachi, S. and Tachi, C. (1979) Ultrastructural studies on maternal embryonic cell interactions during experimentally induced implantation of rat to the endometrium of the mouse. Developmental Biology, 68, 203–223.

    Article  PubMed  CAS  Google Scholar 

  • Tait, A.D., Hodge, L.C. and Allen, W.R. (1982) Production of an equilin precursor by the fetal horse gonad. ICRS Medical Science, 10, 346–347.

    CAS  Google Scholar 

  • Talamantes, F. and Ogren, L. (1988) The placenta as an endocrine organ: Polypeptides, in Physiology of Reproduction, Chapter 52 (eds E. Knobil and J. Neill), Raven Press, New York.

    Google Scholar 

  • Tan, L. and Rousseau, P. (1983) The chemical identity of the immunoreactive LHRH-like peptide biosynthesized in the human placenta. Biochemical and Biophysical Research Communications, 109, 1061–1071.

    Article  Google Scholar 

  • Tao, T.W. and Hertig, A.T. (1965) Viability and differentiation of human trophoblast in organ culture. American Journal of Anatomy, 116, 315–328.

    Article  PubMed  CAS  Google Scholar 

  • Tarachand, U. (1986) Decidualisation: origin and role of the associated cells. Biologie Cellulaire, 57, 9–16.

    Article  CAS  Google Scholar 

  • Tatarinov, Y. S. and Sokolov, A.V. (1977) Development of a radioimmunoassay for pregnancy-specific β-globulin and its measurement in serum of patients with trophoblastic and nontrophoblastic tumours. International Journal of Cancer, 19, 161–166.

    Article  CAS  Google Scholar 

  • Tavolga, W.N. and Rugh, R. (1947) Development of the platyfish Platypoecilus maculatus. Zoologica, 32, 1–16.

    CAS  Google Scholar 

  • Tawfik, O.W., Hunt, D.S. and Wood, G.W. (1986) Implication of PGE2 in soluble factor mediated immune suppression by murine decidual cells. American Journal of Reproduction and Immuno-logical Microbiology, 12, 111–117.

    CAS  Google Scholar 

  • Taylor, M.J., Webb, R., Mitchell, M.D. and Robinson, J.S. (1982) Effect of progesterone withdrawal in sheep during late pregnancy. Journal of Endocrinology, 92, 85–93.

    Article  PubMed  CAS  Google Scholar 

  • Taylor, M.J., McMillan, K., Jenkin, G., Robinson, J.S. and Thorburn, G.D. (1983) The regulation of OPL, the role of the fetal hypothalamo-pituitary axis. Journal of Developmental Physiology, 5, 251–258.

    PubMed  CAS  Google Scholar 

  • Teasdale, F. (1976) Numerical density of nuclei in the sheep placenta. Anatomical Record, 185, 187–196.

    Article  Google Scholar 

  • Tedde, G. and Tedde-Piras, A. (1978) Mitotic index of the Langhans cells in the normal human placenta from the early stages of pregnancy to term. Acta Anatomica, 100, 114–119.

    Article  PubMed  CAS  Google Scholar 

  • Thorburn, G.D. (1991) The placenta, prostaglan-dins and parturition, a review. Reproduction, Fertility and Development, 3, 277–294.

    Article  CAS  Google Scholar 

  • Thorburn, G.D. and Mattner, P.E. (1971) Anastomosis of the utero-ovarian and anterior mammary veins for collection of utero-ovarian venous blood: progesterone secretion rates in cyclic ewes. Journal of Endocrinology, 50, 307–320.

    Article  PubMed  CAS  Google Scholar 

  • Thordarson, G., McDowell, G.H., Smith, S.V., Hey, S. and Forsyth, I.A. (1987) Effects of continuous i.v. infusion of an ovine placental extract enriched in PL on plasma hormones, metabolites and metabolic biokinetics in non pregnant sheep. Journal of Endocrinology, 113, 277–283.

    Article  PubMed  CAS  Google Scholar 

  • Thornburg, K.L., Bissonnette, J.M. and Faber, J.J. (1976) Absence of fetal placental waterfall phenomenon in chronically prepared fetal lambs. American Journal of Physiology, 230, 886–892.

    PubMed  CAS  Google Scholar 

  • Tiedemann, K. and Minuth, W.W. (1980) The pig yolk sac: fine structure of the posthematopoietic organ. Histochemistry, 68, 133–146.

    Article  PubMed  CAS  Google Scholar 

  • Toth, M., Asboth, G. and Hertelendy, F. (1983) Turnover of lipid bound arachidonic acid and biosynthesis of prostanoids in the endometrium and myometrium of the laying hen. Archives of Biochemistry and Biophysics, 226, 27–36.

    Article  PubMed  CAS  Google Scholar 

  • Towler, C.M., Horne, C.H.W., Jandial, V., Campbell, D.M. and MacGillivray, I. (1976) Plasma levels of pregnancy-specific β-glycoprotein in normal pregnancy. British Journal of Obstetrics and Gynaecology, 83, 775–779.

    Article  PubMed  CAS  Google Scholar 

  • Tsoulos, N.G., Colwell, J.R., Battaglia, F.C., Makowski, E.L. and Meschia, G. (1971) Comparison of glucose, fructose and oxygen uptakes by fetuses of fed and starved ewes. American Journal of Physiology, 221, 234–237.

    PubMed  CAS  Google Scholar 

  • Tsutsumi, Y. (1962) The vascular pattern of the placenta in farm animals. Journal of the Faculty of Agriculture Hokkaido University Sapporo, 52, 372–482.

    Google Scholar 

  • Turner, C.L. (1947) Viviparity in the teleost fishes. Science Monthly, 65, 508–518.

    CAS  Google Scholar 

  • Tyndale-Biscoe, H. and Renfree, M. (1987) Reproductive Physiology of Marsupials, Cambridge University Press.

    Google Scholar 

  • Ullman, M.B. and Reimers, T.J. (1989) Progesterone production by binucleate trophob-lastic cells of cows. Journal of Reproduction and Fertility, Suppl. 37, 173–179.

    Google Scholar 

  • Ulysses, S.S., Akhouri, A., Doe, S. and Doe, R.P. (1972) Placental iron transfer: relationship to placental anatomy and phylogeny of the mammals. American Journal of Anatomy, 134, 263–269.

    Article  Google Scholar 

  • Vanderpuye, O.A. and Smith, C.A. (1987) Proteins of the apical and basal plasma membranes of the human placental syncytium: im-munochemical and electrophoretic studies. Placenta, 8, 591–608.

    Article  PubMed  CAS  Google Scholar 

  • Van Duyne, CM., Parker, H.R., Havel, R.J. and Holm, L.M. (1960) Free fatty acid metabolism in fetal and newborn sheep. American Journal of Physiology, 199, 987–990.

    Google Scholar 

  • Van Wyk, L.C, Van Niekerk, CH. and Belonje, P.C. (1972) Evolution of the post partum uterus of the ewe. Journal of South African Veterinary Association, 43, 19–26.

    Google Scholar 

  • Varmuza, S., Prideaux, V., Kothary, R. and Rossant, J. (1988) Polytene chromosomes in mouse trophoblast giant cells. Development, 102, 127–134.

    PubMed  CAS  Google Scholar 

  • Venuto, R.C, Cox, J.W., Stein, J.H. and Ferris, T.F. (1976) The effect of changes in perfusion pressure on uteroplacental blood flow in the pregnant rabbit. Journal of Clinical Investigation, 57, 938–944.

    Article  PubMed  CAS  Google Scholar 

  • Verstegen, J., Fellmann, D. and Beckers, J.F. (1985) Immunodetection of the bovine chorionic somatomammotropin. Acta Endocrinologia, 109, 403–410.

    CAS  Google Scholar 

  • Wadsworth, P.F., Lewis, D.J. and Heywood, R. (1980) The ultrastructural features of progesta-gen induced decidual cells in the rhesus monkey (Macaca mulatto). Contraception, 22, 189–198.

    Article  PubMed  CAS  Google Scholar 

  • Wagner, W.C. and Hansel, W. (1969) Reproductive physiology of the post partum cow. 1. Clinical and histological findings. Journal of Reproduction and Fertility, 18, 493–500.

    Article  PubMed  CAS  Google Scholar 

  • Wales, R.G. and Cuneo, C.L. (1989) Morphological and chemical analysis of the sheep conceptus from the 13th to the 19th day of pregnancy. Reproduction Fertility and Development, 1, 31–39.

    Article  CAS  Google Scholar 

  • Wallace, C.R., Collier, R.J., Bott, D.J, Byatt, J.C. and Bremel, R.D. (1985) Bovine placental lacto-gen concentrations in maternal and fetal fluids. Journal of Animal Science, 61, Suppl. 1, Abstract No. 377.

    Google Scholar 

  • Wallenburg, H.C.S. (1981) Modulation and regulation of uteroplacental blood flow. Placenta, Suppl. 1, 45–64.

    Google Scholar 

  • Walls, E.W. (1938) Myrmecophaga jubata: an embryo with a placenta. Journal of Anatomy, 73, 311–317.

    Google Scholar 

  • Wango, E.O., Wooding, F.B.P. and Heap, R.B. (1990a) The role of trophoblastic cells in implantation in the goat: a morphological study. Journal of Anatomy, 171, 241–257.

    PubMed  CAS  Google Scholar 

  • Wango, E.O., Wooding, F.B.P. and Heap, R.B. (1990b) The role of trophoblastic cells in implantation in the goat: a quantitive study. Placenta, 11, 381–394.

    Article  PubMed  CAS  Google Scholar 

  • Wango, E.O., Wooding, F.B.P. and Heap, R.B. (1991) Progesterone and 5β pregnanediol proauction by isolated fetal binucleate cells from sheep and goats. Journal of Endocrinology, 129, 283–289.

    Article  PubMed  CAS  Google Scholar 

  • Waters, M.J., Oddy, V.H., McCloghny, C.E., Gluckman, P.D., Duplock, R., Owens, P.C. and Brinsmead, M.W. (1985) An examination of the proposed roles of placental lactogen in the ewe by means of antibody neutralisation. Journal of Endocrinology, 106, 377–386.

    Article  PubMed  CAS  Google Scholar 

  • Wathes, D.C. (1992) Commentary: Embryonic mortality and the uterine environment. Journal of Endocrinology, 134, 321–325.

    Article  PubMed  CAS  Google Scholar 

  • Wathes, D.C. and Wooding, F.B.P. (1980) An electron microscopic study of implantation in the cow. American Journal of Anatomy, 159, 285–306.

    Article  PubMed  CAS  Google Scholar 

  • Watkins, W.B. and Reddy, S. (1980) Ovine placental lactogen in the cotyledonary and inter-cotyledonary placenta of the ewe. Journal of Reproduction and Fertility, 58, 411–414.

    Article  PubMed  CAS  Google Scholar 

  • Weekes, H.L.W. (1935) A review of the placen-tation among reptiles with particular regard to the function and evolution of the placenta. Proceedings of the Herpetological Society, Part 2, 625–645.

    Google Scholar 

  • Wehrenberg, W.B., Chaichareon, D.P., Dierschke, D.J., Rankin, J.H. and Ginther, O.J. (1977) Vascular dynamics of the reproductive tract in the female rhesus monkey: relative contributions of ovarian and uterine arteries. Biology of Reproduction, 17, 148–153.

    Article  PubMed  CAS  Google Scholar 

  • Welsh, A.O. and Enders, A.C. (1983) Occlusion and reformation of rat uterine epithelium during pregnancy. American Journal of Anatomy, 167, 463–477.

    Article  PubMed  CAS  Google Scholar 

  • Welsh, A.O. and Enders, A.C. (1985) A light and electron microscopic examination of the mature decidual cells of the rat with emphasis on the antimesometrial decidua and its degeneration. American Journal of Anatomy, 172, 1–30.

    Article  PubMed  CAS  Google Scholar 

  • Welsh, A.O. and Enders, A.C. (1987) Trophoblast decidual cell interactions and establishment of maternal blood circulation in the parietal yolk sac placenta of the rat. Anatomical Record, 217, 203–219.

    Article  PubMed  CAS  Google Scholar 

  • Welsh, A.O. and Enders, A.C. (1991a) Chorio-allantoic placental formation in the rat. I. Luminal epithelial cell death and ECM modifications in the mesometrial region of the implantation chamber. American Journal of Anatomy, 192, 215–231.

    Article  PubMed  CAS  Google Scholar 

  • Welsh, A.O. and Enders, A.C. (1991b) Chorioallantoic placental formation in the rat. II. Angiogenesis and maternal blood circulation in the mesometrial region of the implantation chamber prior to placental formation. American Journal of Anatomy, 192, 346–365.

    Google Scholar 

  • Wewer, V.M., Faber, M., Liotta, L.A. and Albrechtsen, R. (1985) Immunochemical and ultrastructural assessment of the nature of the pericellular basement membrane of human decidual cells. Laboratory Investigation, 53, 624–633.

    PubMed  CAS  Google Scholar 

  • Whitwell, K.E. and Jeffcott, L.B. (1975) Morphological studies on the fetal membranes of the normal singleton foal at term. Research in Veterinary Science, 19, 44–55.

    PubMed  CAS  Google Scholar 

  • Whyte, A. and Allen, W.R. (1985) Equine endo-metrium at preimplantation stages of pregnancy has specific glycosylated regions. Placenta, 6, 537–542.

    Article  PubMed  CAS  Google Scholar 

  • Wichtrup, L.G. and Greven, H. (1985) Uptake of ferritin by the trophotaeniae of the Goodeid Fish Ameca splendens Miller and Fitzsimons 1971 (Teleostei; Cyprinodontiformes). Cytobiology, 42, 33–40.

    CAS  Google Scholar 

  • Wigglesworth, J.S. (1969) Vascular anatomy of the human placenta and its significance for placental pathology. Journal of Obstetrics and Gynaecology of the British Commonwealth, 76, 979–989.

    Article  PubMed  CAS  Google Scholar 

  • Wigmore, P.M.C. and Strickland, N.C. (1985) Placental growth in the pig. Anatomy and Embryology, 173, 263–268.

    Article  PubMed  CAS  Google Scholar 

  • Wild, A.E. (1981) Endocytotic mechanisms in protein transfer across the placenta. Placenta, Suppl. 1, 165–186.

    Google Scholar 

  • Wiley, A.A., Baktol, F.F. and Barron, D.H. (1987) Histogenesis of the ovine uterus. Journal of Animal Science, 64, 1262–1269.

    PubMed  CAS  Google Scholar 

  • Wilkening, R.B. and Meschia, G. (1992) Current topic: Comparative physiology of placental oxygen transport. Placenta, 13, 1–15.

    Article  PubMed  CAS  Google Scholar 

  • Willingham, M.C. and Pastan, I. (1984) Endo-cytosis and exocytosis: current concepts of vesicle traffic in animal cells. International Review Cytology, 92, 51–86.

    Article  CAS  Google Scholar 

  • Wilmut, I., Sales, D.I. and Ashworth, C.J. (1986) Maternal and embryonic factors associated with prenatal loss in mammals. Journal of Reproduction and Fertility, 76, 851–864.

    Article  PubMed  CAS  Google Scholar 

  • Wimsatt, W.A. (1951) Observations on the morphogenesis cytochemistry and significance of the binucleate giant cells of the placenta of ruminants. American Journal of Anatomy, 89, 233–282.

    Article  PubMed  CAS  Google Scholar 

  • Wimsatt, W.A. (1974) Morphogenesis of the fetal membranes and placenta of the black bear Ursus americanus (Pallas). American Journal of Anatomy, 140, 471–496.

    Article  PubMed  CAS  Google Scholar 

  • Wimsatt, W.A. and Enders, A.C. (1980) Structure and morphology of uterus, placenta and parap-lacental organs of the neotropical disc winged bat Thyroptera tricolor spix (Microchiroptera: Thyropteridae). American Journal of Anatomy, 159, 209–243.

    Article  PubMed  CAS  Google Scholar 

  • Wimsatt, W.A., Enders, A.C. and Mossman, H.W. (1973) A re-examination of the chorioal-lantoic placental membrane of a shrew, Blarina brevicauda: resolution of a controversy. American Journal of Anatomy, 138, 207–234.

    Article  PubMed  CAS  Google Scholar 

  • Wintenberger-Torres, S. and Flechon, J. (1974) Ultrastructural evolution of the trophoblast cells in the preimplantation sheep blastocyst from day 8 to day 18. Journal of Anatomy, 118, 143–153.

    PubMed  CAS  Google Scholar 

  • Wislocki, G.B. (1929) On the placentation of primates with a consideration of the phylogeny of the placenta. Carnegie Institute Contributions to Embryology, 20, 51–80.

    Google Scholar 

  • Wislocki, G.B. (1930) A series of placental stages of a platyrrhine monkey Ateles geoffroyi, with some remarks on age, sex and breeding period in platyrrhines. Carnegie Contributions to Embryology, 22, 173–200.

    Google Scholar 

  • Wislocki, G.B. and Amoroso, E.C. (1956) The placenta of the Wolverine (Gulo gulo luscus). Bulletin of the Museum of Comparative Zoology, Harvard University, 114, 91–100.

    Google Scholar 

  • Wislocki, G.B. and Dempsey, E.W. (1946) Histochemical reactions in the placenta of the cat. American Journal of Anatomy, 78, 1–46.

    Article  PubMed  CAS  Google Scholar 

  • Wislocki, G.B. and Streeter, G.L. (1938) On the placentation of the Macaque (Macaca mulatta) from the time of implantation until the formation of the definitive placenta. Carnegie Institute Contributions to Embryology, 27, 1–66.

    Google Scholar 

  • Wislocki, G.B. and Westhuysen, O.P.V. (1940) The placentation of Procavia capensis, with a discussion of the placental affinities of the Hyracoides. Contributions to Embryology, 27, 67–88.

    Google Scholar 

  • Wooding, F.B.P. (1980) Electron microscopic localisation of binucleate cells in the sheep placenta using phosphotungstic acid. Biology of Reproduction, 22, 357–365.

    PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. (1981) Localisation of ovine placental lactogen in sheep placentomes by electron microcope immunocytochemistry. Journal of Reproduction and Fertility, 62, 15–19.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. (1982a) Structure and function of placental binucleate (giant) cells. Bibliotheca Anatomica, 22, 134–139.

    PubMed  Google Scholar 

  • Wooding, F.B.P. (1982b) The role of the binucleate cell in ruminant placental structure. Journal of Reproduction and Fertility, Suppl. 31, 31–39.

    PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. (1983) Frequency and localisation of binucleate cells in the placentomes of ruminants. Placenta, 4, 527–540.

    PubMed  Google Scholar 

  • Wooding, F.B.P. (1984) Role of binucleate cells in fetomaternal cell fusion at implantation in the sheep. American Journal of Anatomy, 170, 233–250.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. (1987) Ultrastructural evidence for placental lactogen transport and secretion in ruminants. Journal of Physiology, 386, 26P.

    Google Scholar 

  • Wooding, F.B.P. (1992) The synepitheliochorial placenta of ruminants: Binucleate cell fusions and hormone production. Placenta, 13, 101–113.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. and Beckers, J.F. (1987) Trinucleate cells and the ultrastructural localisation of bovine placental lactogen. Cell and Tissue Research, 247, 667–673.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P. and Staples, L.D. (1981) Functions of the trophoblast papillae and binucleate cells in implantation in the sheep. Journal of Anatomy, 133, 110–112.

    Google Scholar 

  • Wooding, F.B.P. and Wathes, D.C. (1980) Binucleate cell migration in the bovine placen-tome. Journal of Reproduction and Fertility, 59, 425–430.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Chambers, S.G., Perry, J.S., George, M. and Heap, R.B. (1980) Migration of binucleate cells in the sheep placenta during normal pregnancy. Anatomy and Embryology, 158, 361–370.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Flint, A.P.F., Heap, R.B. and Hobbs, T. (1981) Autoradiographic evidence for migration and fusion of cells in the sheep placenta; resolution of a problem in placental classification. Cell Biology International Reports, 5, 821–827.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Staples, L.D. and Peacock, M.A.P. (1982) Structure of trophoblast papillae on the sheep conceptus at implantation. Journal of Anatomy, 134, 507–516.

    PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Flint, A.P.F., Heap, R.B., Morgan, G., Buttle, H.L. and Young, I.R. (1986) Control of binucleate cell migration in the placenta of ruminants. Journal of Reproduction and Fertility, 76, 499–512.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Morgan, G., Forsyth, I.A., Butcher, G., Hutchings, A., Billingsley, S.A. and Gluckman, P.D. (1992) Light and electron-microscopic studies of cellular localisation of OPL with monoclonal and polyclonal antibodies. Journal of Histochemistry and Cytochemistry, 40, 1001–1009.

    Article  PubMed  CAS  Google Scholar 

  • Wooding, F.B.P., Hobbs, T., Morgan, G., Heap, R.B. and Flint, A.P.F. (1993) Cellular dynamics of growth in sheep and goat synepitheliochorial placentomes: An autoradiographic study. Journal of Reproduction and Fertility, 98, 275–283.

    Article  PubMed  CAS  Google Scholar 

  • Woollacott, R.M. and Zimmer, R.L. (1975) A simplified placenta-like system for the transport of extraembryonic nutrients during embryogenesis of Rugula neritina (Bryozoa). Journal of Morphology, 147, 355–378.

    Article  Google Scholar 

  • Wourms, J.P. (1981) Viviparity: the maternal fetal relationship in fishes. American Zoologist, 21, 473–515.

    Google Scholar 

  • Wu, M.C., Chen, Z.Y., Jarrell, V.L. and Dzuik, PJ. (1989) Effect of initial length of uterus per embryo on fetal survival and development in the pig. Journal of Animal Science, 67, 1764–1772.

    Google Scholar 

  • Wu, W.X., Brooks, J., Millar, M.R., Ledger, W.L., Saunders, P.T.K., Glasier, A.F. and McNeilly, A.S. (1991) Localisation of the sites of synthesis and action of PRL by immunocytochemistry and in situ hybridisation within the human uteropla-cental unit. Journal of Molecular Endocrinology, 7, 241–247.

    Article  PubMed  CAS  Google Scholar 

  • Wynn, R.M. (1967) Comparative electron microscopy of placental junctional zone. American Journal of Obstetrics and Gynecology, 19, 644–661.

    Google Scholar 

  • Wynn, R.M. (1974) Ultrastructural development of the human decidua. American Journal of Obstetrics and Gynecology, 118, 652–670.

    PubMed  CAS  Google Scholar 

  • Wynn, R.M., Hoschner, J.A. and Oduor-Okelo, D. (1990) The interhemal membrane of the spotted hyena: an immunohistological reappraisal. Placenta, 11, 215–221.

    Article  PubMed  CAS  Google Scholar 

  • Xavier, F. (1976) An exceptional reproductive strategy in Anura: Nectophrynoides occidentalis Angel (Bufonidae), in Major Patterns in Vertebrate Evolution (eds M.K. Hecht, B.M. Hecht and P.C. Goody), Plenum, New York.

    Google Scholar 

  • Xuan, W.W., Millar, M., Brooks, J., Saunders, P., Ledger, W., Glasier, A. and McNeilly, A.S. (1990) Localisation of the sites of synthesis and action of PRL by immunocytochemistry and in situ hybridisation within the human fetoplacen-tal unit. Journal of Endocrinology, 127, Supplement, Abstract 126.

    Google Scholar 

  • Yaron, Z. (1977) Embryo maternal interactions in the lizard Xantusia vigilis, in Reproduction and Evolution (eds J.H. Calaby and C.H. Tyndale-Biscoe) Australian Academy of Science, Canberra.

    Google Scholar 

  • Yamaguchi, M., Ogren, L., Endo, H., Thordarson, G., Bigsby, R.M. and Talamantes, F. (1992) Production of mPL I and II by the same giant cell. Endocrinology, 131, 1595–1602.

    Article  PubMed  CAS  Google Scholar 

  • Young, M. (1981) Placental amino acid transfer and metabolism. Placenta, Suppl. 2, 177–184.

    Google Scholar 

  • Young, M. (1988) Handling of amino acids by the fetoplacental unit, in Placental Nutrition (ed. B.S. Lindblad), Academic Press, New York, pp. 25–43.

    Google Scholar 

  • Zavy, M.T., Bazer, F.W., Sharp, D.C. and Wilcox, C.J. (1979) Uterine luminal proteins in the cycling mare. Biology of Reproduction, 20, 689–698.

    Article  PubMed  CAS  Google Scholar 

  • Zavy, M.T., Sharp, D.C, Bazer, F.W., Fazleabas, A., Sessions, F. and Roberts, R.M. (1984) Identification of stage specific and hormone induced polypeptides in the uterine secretions of the mare during the oestrous cycle and pregnancy. Journal of Reproduction and Fertility, 64, 199–207.

    Google Scholar 

  • Zhou, J. and Bondy, C. (1992) IGF II and its binding proteins in placental development. Endocrinology, 131, 1230–1240.

    Article  PubMed  CAS  Google Scholar 

  • Zoli, A.P., Demez, P., Beckers, J.F., Reznik, M. and Beckers, A. (1992) Light and electronmicro-scopic immunolocalisation of bPAG in the bovine placentome. Biology of Reproduction, 46, 623–629.

    Article  PubMed  CAS  Google Scholar 

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Authors
  1. F. B. P. Wooding
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  2. A. P. F. Flint
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  1. University of Nottingham, UK

    G. E. Lamming (Emeritus Professor of Animal Physiology) (Emeritus Professor of Animal Physiology)

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Wooding, F.B.P., Flint, A.P.F. (1994). Placentation. In: Lamming, G.E. (eds) Marshall’s Physiology of Reproduction. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-1286-4_4

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