Gender effects and central opioid analgesia

  title={Gender effects and central opioid analgesia},
  author={K L Kepler and Kelly M. Standifer and Dennis Paul and Benjamin Kest and Richard J Bodnar},
Central morphine analgesia is significantly greater in male than in female rats. Since mu and delta opioid receptor subtypes have been implicated in supraspinal analgesia, the present study evaluated whether gender or adult gonadectomy altered (a) analgesia on the tail-flick and jump tests following central administration of the mu-selective agonist, [D-Ala2, Me-Phe4, Gly(ol)5] enkephalin (DAMGO) and the delta-selective agonist, [D-Ser2,Leu5] enkephalin-Thr6 (DSLET) and (b) mu1, mu2 and delta… CONTINUE READING


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