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Does Naloxone Reinstate Secondary Hyperalgesia In Humans After Resolution Of A Burn Injury? A Placebo-Controlled, Double-Blind, Randomized, Cross-Over Study, Manuel P. Pereira, Mads U. Werner, Thomas K. Ringsted, Michael C. Rowbotham, Bradley K. Taylor, Joergen B. Dahl
Does Naloxone Reinstate Secondary Hyperalgesia In Humans After Resolution Of A Burn Injury? A Placebo-Controlled, Double-Blind, Randomized, Cross-Over Study, Manuel P. Pereira, Mads U. Werner, Thomas K. Ringsted, Michael C. Rowbotham, Bradley K. Taylor, Joergen B. Dahl
Physiology Faculty Publications
INTRODUCTION: Development of secondary hyperalgesia following a cutaneous injury is a centrally mediated, robust phenomenon. The pathophysiological role of endogenous opioid signalling to the development of hyperalgesia is unclear. Recent animal studies, carried out after the resolution of inflammatory pain, have demonstrated reinstatement of tactile hypersensitivity following administration of μ-opioid-receptor-antagonists. In the present study in humans, we analyzed the effect of naloxone when given after the resolution of secondary hyperalgesia following a first-degree burn injury.
METHODS: Twenty-two healthy volunteers were included in this placebo-controlled, randomized, double-blind, cross-over study. Following baseline assessment of thermal and mechanical thresholds, a first-degree burn injury …