PMID: 8452936Mar 1, 1993Paper

Hypophysectomy of the cyclic mouse. II. Effects of follicle-stimulating hormone (FSH) and luteinizing hormone on folliculogenesis, FSH and human chorionic gonadotropin receptors, and steroidogenesis

Biology of Reproduction
X N Wang, G S Greenwald

Abstract

This study was designed to determine the effects of FSH and LH on ovarian follicular development in adult hypophysectomized (HX) mice. Twelve days after HX, the animals received s.c. injections of ovine FSH (oFSH; 4 micrograms/day) or oFSH (4 micrograms/day) plus ovine LH (oLH; 2 micrograms/day) twice a day for 1 to 4 days. After 4 days of treatment with FSH alone, the number of preantral follicles (stages 1-3) increased significantly compared to that in HX controls and reached cyclic numbers; however, incorporation of [3H]thymidine into these preantral follicles as compared to HX controls did not increase. The number of healthy antral follicles (stages 4-5) and incorporation of [3H]thymidine into stage 5 follicles started to increase after only 1 day of treatment with FSH, and the number of atretic follicles concomitantly decreased. Treatment with both FSH and LH for 1 to 4 days increased the number of healthy follicles and restored DNA synthesis at all stages (1-5) to normal levels. Two days of replacement with FSH or FSH plus LH was required for follicles to attain preovulatory size (stage 6). FSH alone induced FSH and hCG receptors in granulosa cells, but without the induction of thecal LH/hCG receptors; FSH induced product...Continue Reading

Citations

Jun 11, 2004·Biology of Reproduction·R S JaiswalG P Adams
Jan 11, 2012·Reproduction : the Official Journal of the Society for the Study of Fertility·Y QiuD O Bates
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