title: Effects of beta-endorphin fragments on plasma levels of vasopressin.
mesh_terms: D000818:Animals; D001127:Arginine Vasopressin / Q000097:blood*; D004723:Endorphins / Q000494:pharmacology*; D008297:Male; D009271:Naltrexone / Q000494:pharmacology; D051381:Rats; D011919:Rats, Inbred Strains; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D001127:Arginine Vasopressin; D009271:Naltrexone; D001615:beta-Endorphin