Spinal dynorphin immunoreactivity increases bilaterally in a neuropathic pain model.

Abstract

Increased spinal levels of dynorphin, an endogenous opioid kappa agonist, are seen in models of both chronic and acute hyperalgesia. This study determined the extent and localization of spinal immunoreactive dynorphin following sciatic cryoneurolysis (SCN), a neuropathic pain model produced by a peripheral nerve freeze lesion. SCN results in behaviors… (More)

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