TY - GEN AU - Sinchak,K AU - Micevych,P E TI - Progesterone blockade of estrogen activation of mu-opioid receptors regulates reproductive behavior SN - 1529-2401 PY - 2001///0816 KW - Analgesics, Opioid KW - pharmacology KW - Animals KW - Cell Count KW - Dose-Response Relationship, Drug KW - Drug Administration Schedule KW - Enkephalin, Ala(2)-MePhe(4)-Gly(5)- KW - Estradiol KW - analogs & derivatives KW - Estrogens KW - Female KW - Immunohistochemistry KW - Male KW - Naltrexone KW - Narcotic Antagonists KW - Oligopeptides KW - Ovariectomy KW - Posture KW - physiology KW - Preoptic Area KW - cytology KW - Progesterone KW - Rats KW - Rats, Long-Evans KW - Receptors, Opioid, mu KW - agonists KW - Sexual Behavior, Animal KW - drug effects KW - Somatostatin N1 - Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S ER -