title: Ovariectomy of young adult rats has a sparing effect on the ability of aged rats to release luteinizing hormone.
mesh_terms: D000375:Aging; D000818:Animals; D001835:Body Weight; D002369:Castration; D004971:Estrus; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000494:pharmacology; D007986:Luteinizing Hormone / Q000097:blood / Q000378:metabolism*; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology; D011247:Pregnancy; D011374:Progesterone / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
chemical_list: D007987:Gonadotropin-Releasing Hormone; D011374:Progesterone; D007986:Luteinizing Hormone