Abstract
A sensitive and specific radioimmunoassay method for simultaneous measurement of plasma arginine vasopressin (AVP) and oxytocin (OT) has been developed utilizing an extraction technique on DEAE Sephadex A 25. This procedure resulted in mean recoveries of 70.7% (AVP) and 65.4% (OT) in the peptide range of 5 to 100 pg/4 ml. The sensitivity of the assay is 0.5 pg/tube for AVP and 2 pg/tube for OT. The lower limit of detection for plasma extracts was 1.2 pg AVP/ml and 5 pg OT/ml plasma. Employing this method in normal human non smokers and ad libitum fluid the basal levels (mean ± SE) of plasma AVP are 3.5 ± 0.2 pg/ml in males and 4.6 ± 0.4 pg/ml in females and the basal concentrations of plasma OT are 5.1 ± 0.3 pg/ml in males and 5.4 ± 0.3 pg/ml in females. Dehydration and water loading produced significant changes in plasma AVP and OT concentrations and a significant correlation exists between plasma AVP and plasma (r= 0.96, p < 0.001 ) and urinary (r = 0.84, p < 0.01 ) osmolality, but not between plasma OT concentrations and plasma (r =0.11, NS) and urinary (r = 0.27, NS) osmolality. These results suggest that a wide range of physiological and pathophysiological changes in plasma AVP and OT can be simultaneously measured by the extraction procedure and the radioimmunoassay described.
Similar content being viewed by others
References
Robertson G.L., Klein L.A., Roth J., Gorden P. Immunoassay of plasma vasopressin in man. Proc. Natl. Acad. Sci USA 66: 1298, 1970.
Beardwell C.G. Radioimmunoassay of arginine vasopressin in normal plasma. J. Clin. Endocrinol. Metab. 33: 254, 1971.
Robertson G.L., Mahr E.A., Athar S., Sinha T. Development and clinical application of a new method for the radioimmunoassay of arginine vasopressin in human plasma. J. Clin. Invest. 52: 2340, 1973.
Husain M.K., Fernando N., Shapiro M., Kagan A., Glick S.M. Radioimmunoassay of arginine vasopressin in human plasma. J. Clin. Endocrinol. Metab. 37: 616, 1973.
Rosembloom A.A., Sack J., Fisher D.A. The circulation vasopressinase of pregnancy: species comparison with radioimmunoassay. Am. J. Obstet. Gynecol. 121: 316, 1975.
Skowsky W.R., Fisher D.A. The use of thyroglobulin to induce antigenicity to small molecule. J. Lab. Clin. Med. 80: 134, 1972.
Permutt M.A., Parker C.W., Utiger R.D. Immunochemical studies with lysine vasopressin. Endocrinology 78: 809, 1966.
Legros J.J., Stewart U., Nordmann J.J., Dreifuss J.J., Franchimont P. Libération de Vasopressine, d’ocytocine e de neurophysine estimée per methode radio-immunologique lors de la stimulation in vitro de neurohypophyses de rat. C.R. Soc. Biol. 165: 2443, 1971.
Fyhrquist F., Wallenius M., Holleman H.J.G. Radioimmunoassay of vasopressin in unextracted plasma. Scand. J. Clin. Lab. Invest. 36: 841, 1976.
Hunter W.M., Greenwood F.C. Preparation of iodine-131 labelled human growth hormone of high specific activity. Nature 194: 495, 1962.
Legros J.J., Franchimont P. The purification and modification of immunological and physicochemical behavior of iodinated posterior pituitary hormones. In: Kirkhan K.E., Hunter W.M. (Eds.), Radioimmunoassay Methods. Churcill-Livingstone, Edimburg, 1971, p. 40.
Desbuquois V., Aurbach G.D. Use of polyethylene glycol to separate free and antibody-bound peptide hormones in radioimmunoassay. J. Clin. Endocrinol. Metab. 33: 732, 1971.
Pullan P.T., Clappison B.H., Johnston C.I. Plasma vasopressin and human neorphysins in physiological and pathological states associated with changes in vasopressin secretion. J. Clin. Endocrinol. Metab. 49: 580, 1979.
Edwards C.R.W. Vasopressin and oxytocin in health and disease. In: Besser G.M. (Ed.), Clinics in Endocrinology and Metabolism. Saunders, London, 1977, vol. 6, p. 223.
Bartter F.C., Schwartz W.B. The syndrome of inappropriate secretion of antidiuretic hormone. Am. J. Med. 42: 790, 1967.
Morton J., Padfield P.L., Forsling M. A radioimmunoassay for plasma arginine-vasopressin in man and dog: application to physiological and pathological states. J. Endocrinol. 65: 411, 1975.
George C.P.L., Messerli F.H., Genest J., Nowaczynski W., Boucher R., Kuchel O., Rojo-Ortega M. Diurnal variation of plasma vasopressin in man. J. Clin. Endocrinol. Metab. 41: 332, 1975.
Miller P.D., Dobovsky S.L., Mac Donald K.M., Katz F.H., Robertson G.L., Schrier R.W. Centrai, renal and adrenal effects of lithium in man. Am. J. Med. 66: 797, 1979.
Thibonnier M., Soto M.E., Marchetti J., Corvol P., Menard J., Milliez P. Dosage radioimmunologique de la Vasopressine plasmatique. Ann. Endocrinol. (Paris) 41: 379, 1980.
Landgraf R. Simultaneous measurement of arginine vasopressin and oxytocin in plasma and neurohypophyses by radioimmunoassay. Endokrinologie 78: 191, 1981.
Leake R.D., Weitzman R.E., Glatz T.N., Fisher D.A. Plasma oxytocin concentrations in men, non pregnant women and pregnant women before and during spontaneous labor. J. Clin. Endocrinol. Metab. 53: 730, 1981.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Chiodera, P., Louis, F. & Legros, J.J. Simultaneous radioimmunoassay for plasma arginine-vasopressin and oxytocin using DEAE Sephadex A 25 extraction. J Endocrinol Invest 7, 287–293 (1984). https://doi.org/10.1007/BF03351004
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03351004