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Relationships between maternal hormones and weight of newborn sheep

Relationships between maternal hormones and weight of newborn sheep D. CATON, P. S. KALRA, C. J. WILCOX Departments of Obstetrics Gynecology of Anesthesiology of the University College of Medicine the Dairy Science Department of the Institute of Food Agricultural Science, Gainesville, Florida 32610 of Florida CATON, D., P. S. KALRA, C. J. WILCOX. Relationships between maternal hormones weight of newborn sheep. Am. J. Physiol. 244 (Regulatory Integrative Comp. Physiol. 13): R31-R35,1983.-Intact ovariectomized mixed-breed sheep were studied in chronic experiments during the last weeks of pregnancy. Measurements were made of the rate of uterine blood flow (ml/min mlmin-’ kg-‘, combined weight of fetus, uterus, placenta) of arterial uterine venous concentrations of progestagens, estrone, estradiol. The birth weight of the lamb was directly related to mean maternal concentrations of estrone estradiol to the rate of progestagen release by the uterus its contents (ng *ml-’ kg-‘), calculated by taking the product of the rate of blood flow the arteriovenous progestagen difference. Ovariectomy altered the relationship between birth weight progestagen release. Data suggest that rates of progestagen reiease both by the fetoplacental unit by the ovary are proportional to the birth weight of the lamb. l l birth weight; estrone; estradiol; blood flow progestagen production; uterine OF SHEEP during the last http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png AJP - Regulatory, Integrative and Comparative Physiology The American Physiological Society

Relationships between maternal hormones and weight of newborn sheep

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Publisher
The American Physiological Society
Copyright
Copyright © 1983 the American Physiological Society
ISSN
0363-6119
eISSN
1522-1490
Publisher site
See Article on Publisher Site

Abstract

D. CATON, P. S. KALRA, C. J. WILCOX Departments of Obstetrics Gynecology of Anesthesiology of the University College of Medicine the Dairy Science Department of the Institute of Food Agricultural Science, Gainesville, Florida 32610 of Florida CATON, D., P. S. KALRA, C. J. WILCOX. Relationships between maternal hormones weight of newborn sheep. Am. J. Physiol. 244 (Regulatory Integrative Comp. Physiol. 13): R31-R35,1983.-Intact ovariectomized mixed-breed sheep were studied in chronic experiments during the last weeks of pregnancy. Measurements were made of the rate of uterine blood flow (ml/min mlmin-’ kg-‘, combined weight of fetus, uterus, placenta) of arterial uterine venous concentrations of progestagens, estrone, estradiol. The birth weight of the lamb was directly related to mean maternal concentrations of estrone estradiol to the rate of progestagen release by the uterus its contents (ng *ml-’ kg-‘), calculated by taking the product of the rate of blood flow the arteriovenous progestagen difference. Ovariectomy altered the relationship between birth weight progestagen release. Data suggest that rates of progestagen reiease both by the fetoplacental unit by the ovary are proportional to the birth weight of the lamb. l l birth weight; estrone; estradiol; blood flow progestagen production; uterine OF SHEEP during the last

Journal

AJP - Regulatory, Integrative and Comparative PhysiologyThe American Physiological Society

Published: Jan 1, 1983

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