title: Increased pain-reactivity in rat after naloxone: role of endogenous opiate peptides.
mesh_terms: D000818:Animals; D004924:Escape Reaction / Q000187:drug effects; D005260:Female; D008297:Male; D009270:Naloxone / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D011957:Receptors, Opioid / Q000187:drug effects*
chemical_list: D011957:Receptors, Opioid; D009270:Naloxone