Changes in control of gonadotropin secretion in the transition period between regular cycles and constant estrus in aging female rats.
D000375:Aging; D000818:Animals; D002369:Castration; D004958:Estradiol / Q000494:pharmacology; D004971:Estrus; D005246:Feedback; D005260:Female; D005640:Follicle Stimulating Hormone / Q000378:metabolism*; D007986:Luteinizing Hormone / Q000378:metabolism*; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D051381:Rats
D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone