title: Swim-stress induced analgesia and lack of its naloxone antagonism.
mesh_terms: D000698:Analgesia; D000818:Animals; D006801:Humans; D007422:Intestines / Q000294:innervation; D008297:Male; D051379:Mice; D009270:Naloxone / Q000494:pharmacology*; D009619:Nociceptors / Q000503:physiopathology*; D051381:Rats; D012867:Skin / Q000294:innervation; D013315:Stress, Psychological / Q000503:physiopathology*; D013550:Swimming
chemical_list: D009270:Naloxone