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Article Publish Status: FREE
Abstract Title:

Puerarin alleviates burn-related procedural pain mediated by P2X(3) receptors.

Abstract Source:

Purinergic Signal. 2011 Dec ;7(4):489-97. Epub 2011 Jul 22. PMID: 21833698

Abstract Author(s):

Xin Li, Jun Zhang, Yun Gao, Yang Yang, Changshui Xu, Guilin Li, Guanghua Guo, Shuangmei Liu, Jinyan Xie, Shangdong Liang

Article Affiliation:

Xin Li

Abstract:

Pain is a major problem after burns. Procedural pain evoked by burn dressing changes is common in patients, and its management is a critical part of treatment in acute burn injuries. Burn pain is very likely the most difficult form of acute pain to treat. ATP contributes to inflammation, and ATP is implicated in peripheral pain signaling via actions upon P2X(3) receptors. Puerarin is extracted from a traditional Chinese medicine and may act on P2X(3) receptor mechanisms. The Visual Analogue Scale (VAS) has been shown to be a sensitive indicator of pain intensity and treatment effects. Peripheral blood mononuclear cells (PBMCs) are involved in nociception or pain after burn injury. Burn patients were randomly divided into normal saline (NS) group (salt solution is saline) and puerarin-treated group and pain (Visual Analogue Scale scores) and inflammation (PBMCs) measured. Burn pain produces a stress response, so blood glucose, insulin, and cortisol levels in burn patients were determined. Furthermore, the expression of P2X(3) protein and mRNA in PBMCs was detected. The VAS scores in the puerarin-treated group were lower than those in NS group. The blood glucose, insulin, and cortisol levels in the puerarin-treated group at post-dressing changes were significantly decreased in comparison with those in NS group. The expression levels of P2X(3) protein and mRNA in PBMCs of burn patients in NS group were significantly increased in comparison with those in the puerarin-treated group. Puerarin can antagonize inflammatory factors (such as ATP) and decrease the upregulated expressions of P2X(3) protein and mRNA in PBMCs after burns to decrease VAS. Thus, puerarin had an analgesic effect on procedural pain in dressing changes of burn patients related to P2X(3) receptors.

Study Type : Human Study
Additional Links
Pharmacological Actions : Analgesics : CK(2569) : AC(470)

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Sayer Ji
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