title: Changes in rat brain opiate receptor content upon castration and testosterone replacement.
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects / Q000378:metabolism*; D002369:Castration; D007700:Kinetics; D008297:Male; D009271:Naltrexone / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid / Q000187:drug effects / Q000378:metabolism*; D013739:Testosterone / Q000494:pharmacology*
chemical_list: D011957:Receptors, Opioid; D013739:Testosterone; D009271:Naltrexone