title: Is there correlation between analgesic potency and biodegradation of enkephalin analogs?
mesh_terms: D000626:Aminopeptidases; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D001681:Biological Assay; D001921:Brain / Q000378:metabolism*; D004723:Endorphins / Q000378:metabolism*; D004745:Enkephalins / Q000097:blood / Q000378:metabolism* / Q000494:pharmacology; D006801:Humans; D011392:Proline; D051381:Rats; D013329:Structure-Activity Relationship
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011392:Proline; D000626:Aminopeptidases