Two % saline treatment: failure to alter opiate and cold-water stress analgesia.
D000818:Animals; D003080:Cold Temperature; D004723:Endorphins / Q000378:metabolism; D008297:Male; D009020:Morphine / Q000494:pharmacology*; D009619:Nociceptors / Q000187:drug effects*; D051381:Rats; D012965:Sodium Chloride / Q000494:pharmacology*; D013312:Stress, Physiological / Q000523:psychology*; D014882:Water-Electrolyte Balance / Q000187:drug effects
D004723:Endorphins; D012965:Sodium Chloride; D009020:Morphine