title: Behavioral effects of dynorphin -- a novel opioid neuropeptide.
mesh_terms: D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects*; D004399:Dynorphins; D004723:Endorphins / Q000494:pharmacology*; D008297:Male; D051379:Mice; D009043:Motor Activity / Q000187:drug effects; D009270:Naloxone / Q000494:pharmacology; D011957:Receptors, Opioid / Q000187:drug effects
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D009270:Naloxone; D004399:Dynorphins