LH releases in ovariectomized dogs in response to estrogen withdrawal and its facilitation by progesterone.
D000818:Animals; D002369:Castration; D004285:Dogs; D004305:Dose-Response Relationship, Drug; D004958:Estradiol / Q000008:administration & dosage / Q000494:pharmacology*; D005260:Female; D007986:Luteinizing Hormone / Q000378:metabolism*; D011374:Progesterone / Q000494:pharmacology / Q000502:physiology*
D011374:Progesterone; D004958:Estradiol; D007986:Luteinizing Hormone