Relationship of pituitary prolactin and LH to mammary and uterine growth of pubertal rats during the estrous cycle
| Autor: | Sinha Yn, H.A. Tucker |
|---|---|
| Rok vydání: | 1969 |
| Předmět: |
Estrous cycle
endocrine system medicine.medical_specialty urogenital system Uterus DNA Biology Luteinizing Hormone General Biochemistry Genetics and Molecular Biology Prolactin Rats Prolactin cell Endocrinology Mammary Glands Animal Estrus Pregnancy Internal medicine Pituitary Gland medicine Animals RNA Female reproductive and urinary physiology hormones hormone substitutes and hormone antagonists |
| Zdroj: | Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.). 131(3) |
| ISSN: | 0037-9727 |
| Popis: | SummaryMammary and uterine development and their relationships to the pituitary content of prolactin and LH were studied during the five estrous cycles after vaginal opening in rats. Cumulative mammary and uterine growth was completed largely by the fourth estrous cycle after puberty. Although there was a lag of 1 day between peak mammary and uterine development, virtually all of this growth occurred during the estrogenic phase of the estrous cycle. Involutionary changes occurred in both organs during the progestational phase of the estrous cycle. Pituitary prolactin concentration was greater at proestrus (0.032 IU/mg) and metestrus (0.041 IU/mg) than at estrus (0.015 IU/mg) or diestrus (0.015 IU/mg). Pituitary LH concentration, which averaged 0.72, 0.31, 0.27, and 0.33 μ/mg at proestrus, estrus, metestrus, and diestrus, respectively, was correlated (r=0.58, p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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