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Environmental temperature and 17-ketosteroidogenesis in sheep

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Abstract

Investigations were performed on the fractionation of the urinary 17-ketosteroids of 6 castrated rams kept in constant general conditions and diet, 44 assays were performed during 3 winter months.Comparison of the hormone assais with the fluctuation in environmental temperature showed there to be a positive correlation between temperature under 0°C and 11-oxy-17-ketosteroid excretion and negative correlation with dehydro-epiandrosterone and aldosterone + etiocholanolone excretion. There was an inverse response when the temperature was over 0°C. The different response of cortisteroidogenesis to experimental and natural conditions is discussed in relation to high and low temperature.

Zusammenfassung

Die 17-Ketosteroide im Harn von 6 kastrierten Hammeln, die unter konstanten Bedingungen und Ernährung lebten, wurden während 3 Monaten im Winter untersucht. Die Korrelation der Hormonmengen mit den Veränderungen der Umgebungstemperatur ergab: (1) Bei Temperaturen unter 0°C war die Ausscheidung von 11-Oxy-17-Ketosteroid erhöht und die von Dehydro-Epiandrosteron und Aldosteron mit Atiocholanolon vermindert; (2) die umgekehrte Beziehung ergab sich bei Temperaturen über 0°C. Die verschiedenen Reaktionen der Kortikosteroidgenese auf natürliche und experimentelle Bedingungen in Beziehung auf hohe und niedrige Temperaturen werden diskutiert.

Resume

On a examiné durant trois mois d'hiver les 17-kétostéroïdes recueillis dans l'urine de 6 moutons châtrés. Ceux-ci vivaient dans des conditions extérieures identiques et recevaient la même nourriture. La corrélation établie entre les quantités d'hormones et les fluctuations de la température ambiante a donné les résultats suivants: (1) Par température inférieure à 0°C, la sécrétion de 11-Oxy-17-Kétostéroïde augmente alors que celles de déhydro-épiandrostérone et de aldostérone +étiocholandone diminuent; (2) l'effet opposé se produit par températures supérieures à 0°C. On discute les diverses réactions de la sécrétion de cortistéroïde à des températures élevées ou basses et cela dans des conditions naturelles et expérimentales.

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Authors and Affiliations

  1. Department of Endocrinoecology, Institute of Endocrinology, Bd. Aviatorilor 34, Bucharest, Rumania

    Al. Lungu

  2. Central Institute of Agricultural Researches, Bucharest, Rumania

    I. Dinu

Authors
  1. Al. Lungu
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  2. A. Tache
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  3. F. Cocu
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  4. I. Dinu
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  5. V. Teodoru
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Lungu, A., Tache, A., Cocu, F. et al. Environmental temperature and 17-ketosteroidogenesis in sheep. Int J Biometeorol 10, 155–161 (1966). https://doi.org/10.1007/BF01426861

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  • DOI: https://doi.org/10.1007/BF01426861

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