The role of the sympathetic efferents in endotoxin-induced localized inflammatory hyperalgesia and cytokine upregulation.

Abstract

The sympathetic system (SNS) is considered to be a major component of the neurogenic contribution to inflammation and hyperalgesia. We have investigated the role of the SNS in the local inflammatory pain induced by intraplantar (i.pl) injections of bacterial endotoxin (ET). Treatment of rats with an alpha-adrenoceptor antagonist (phentolamine, 0.25-1 mg/kg… (More)

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