[Proestral modification of plasma LH and FSH levels in rats exposed to FSH at the beginning of a 4-day cycle].
Four day cyclic female Rats were injected with dosages of FSH capable of causing superovulation and or superluteinization at the end of the cycle. A decrease in plasma LH and FSH was observed during the "critical period" on the afternoon of proestrus. The exogenous FSH was then supposed to increase the number of follicles sensitive to the ovulating and luteinizing action of LH.
D000818:Animals; D004971:Estrus / Q000187:drug effects*; D005260:Female; D005640:Follicle Stimulating Hormone / Q000097:blood* / Q000494:pharmacology; D007986:Luteinizing Hormone / Q000097:blood*; D010424:Pentobarbital / Q000494:pharmacology; D011247:Pregnancy; D011359:Proestrus / Q000187:drug effects*; D051381:Rats; D013997:Time Factors
D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone; D010424:Pentobarbital
Modifications pro-oestrales du taux plasmatique de LH et de FSH chez des rattes exposées à l'action de FSH au début de cycles de 4 jours