title: Analgesia following defeat in an aggressive encounter: development of tolerance and changes in opioid receptors.
mesh_terms: D000374:Aggression / Q000502:physiology*; D000378:Agonistic Behavior / Q000502:physiology*; D000698:Analgesia; D000818:Animals; D003345:Corticosterone / Q000097:blood; D004174:Diprenorphine / Q000378:metabolism; D004291:Dominance-Subordination; D004361:Drug Tolerance; D008297:Male; D051379:Mice; D009020:Morphine / Q000494:pharmacology; D009270:Naloxone / Q000378:metabolism; D010913:Pituitary-Adrenal System / Q000502:physiology; D051381:Rats; D012930:Social Dominance; D013045:Species Specificity; D013312:Stress, Physiological / Q000503:physiopathology*
chemical_list: D004174:Diprenorphine; D009270:Naloxone; D009020:Morphine; D003345:Corticosterone