CYCLIC OVARIAN FUNCTION IN A MALE MACAQUE: ADDITIONAL EVIDENCE FOR A LACK OF SEXUAL DIFFERENTIATION IN THE PHYSIOLOGICAL MECHANISMS THAT REGULATE THE CYCLIC RELEASE OF GONADOTROPINS IN PRIMATES
- 1 June 1986
- journal article
- research article
- Published by The Endocrine Society in Endocrinology
- Vol. 118 (6) , 2608-2610
- https://doi.org/10.1210/endo-118-6-2608
Abstract
Ovarian tissue from adult female rhesus macaques was transplanted into sc abdominal pouches of 4 male rhesus macaques that had been castrated after reaching sexual ovarian transplants. Two males in which the transplants were successful showed preovulatory-like gonadotropin surges in response to increasing levels of estradiol. In one of these males (7082), circulating levels of gonadotropins and steroids indicated that cyclic ovarian function had been established. This male showed 5 successive ovarian cycles that averaged 28 days in length. Comparison of the changes in reproductive hormones between 7082 and females with normal menstrual cycles support the hypothesis that the neuroendocrine mechanisms that regulate cyclic release of gonadotropins in primates are not sexually different.This publication has 2 references indexed in Scilit:
- Time Courses of Concentrations of Circulating Gonadotropin, Prolactin, Testosterone, and Cortisol in Adult Male Rhesus Monkeys (Macaca mulatta) Throughout the 24 h Light-Dark Cycle1Biology of Reproduction, 1981
- Sex Differences in Biologically Active and Immunoreactive Gonadotropins in the Fetal Circulation of Rhesus Monkeys*Endocrinology, 1980