title: Kappa opioid properties of dynorphin and its peptide fragments on the guinea-pig Ileum.
mesh_terms: D000818:Animals; D003496:Cyclazocine / Q000031:analogs & derivatives / Q000494:pharmacology; D004347:Drug Interactions; D004361:Drug Tolerance; D004399:Dynorphins; D004723:Endorphins / Q000494:pharmacology*; D016314:Ethylketocyclazocine / Q000031:analogs & derivatives*; D006168:Guinea Pigs; D007082:Ileum / Q000187:drug effects; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*; D009270:Naloxone / Q000494:pharmacology; D010446:Peptide Fragments / Q000494:pharmacology; D011957:Receptors, Opioid / Q000378:metabolism*; D017473:Receptors, Opioid, kappa
chemical_list: D004723:Endorphins; D010446:Peptide Fragments; D011957:Receptors, Opioid; D017473:Receptors, Opioid, kappa; D009270:Naloxone; D016314:Ethylketocyclazocine; C012395:ketazocine; D004399:Dynorphins; D003496:Cyclazocine