title: Brain peptides and pain sensation.
mesh_terms: D000818:Animals; D001923:Brain Chemistry; D004723:Endorphins / Q000302:isolation & purification; D004745:Enkephalins / Q000302:isolation & purification; D005455:Fluorescent Antibody Technique; D006168:Guinea Pigs; D006801:Humans; D007930:Leucine / Q000302:isolation & purification; D008715:Methionine / Q000302:isolation & purification; D051379:Mice; D009020:Morphine / Q000037:antagonists & inhibitors; D009294:Narcotics; D010146:Pain / Q000188:drug therapy*; D010455:Peptides; D011863:Radioimmunoassay; D051381:Rats; D008083:beta-Lipotropin / Q000302:isolation & purification
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009294:Narcotics; D010455:Peptides; D009020:Morphine; D008083:beta-Lipotropin; D008715:Methionine; D007930:Leucine