title: Relationship between circulating estrogens and the central mechanisms by which ovarian steroids stimulate luteinizing hormone secretion in aged and young female rats.
mesh_terms: D000375:Aging; D000818:Animals; D002369:Castration; D004967:Estrogens / Q000097:blood / Q000502:physiology*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology; D007986:Luteinizing Hormone / Q000378:metabolism*; D010053:Ovary / Q000502:physiology*; D011374:Progesterone / Q000494:pharmacology; D051381:Rats
chemical_list: D004967:Estrogens; D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D007986:Luteinizing Hormone