谢恒韬,王娟,贾一帆,贾强,潘侠,王龙

• 1:武汉大学人民医院

摘要(Abstract)：

目的探讨羌活水提物预先给药对神经慢性结扎损伤(CCI)大鼠神经病理性疼痛的预防作用及机制研究。方法将50只SD大鼠按随机数字表分为假手术组、模型组、羌活低剂量组、羌活中剂量组和羌活高剂量组,制备CCI大鼠模型,假手术组只暴露神经不进行结扎。羌活各剂量组给予不同剂量羌活水提物,假手术组和模型组给予等量生理盐水。术后14 d,大鼠进行机械痛阈测定后处死,取脊髓腰膨大L4～L6节段,检测并比较不同组大鼠脊髓组织中三叉神经节嘌呤能P2X4受体(P2X4R)、转录因子-κB(NF-κB)、白细胞介素-1β(IL-1β)和肿瘤坏死因子-α(TNF-α)水平。结果与假手术组比较,术后其余各组机械痛阈均降低,脊髓组织中P2X4R、NF-κB、IL-1β和TNF-α表达水平均增高,差异具有统计学意义(P <0.05);与模型组比较,术后羌活各剂量组机械痛阈均增加,脊髓组织中P2X4R、NF-κB、IL-1β和TNF-α表达水平均降低,差异具有统计学意义(P <0.05);羌活各剂量组机械痛阈随羌活剂量的增加而增加,脊髓组织中P2X4R、NF-κB、IL-1β和TNF-α表达水平随羌活剂量的增加而均降低,差异具有统计学意义(P <0.05)。结论羌活水提物能缓解大鼠神经病理性疼痛,其作用机制可能与抑制脊髓中P2X4R的表达,降低了NF-κB和促炎因子水平有关。

关键词(KeyWords)： 羌活水提物;CCI大鼠;神经病理性疼痛;促炎因子;P2X4R;NF-κB

Abstract:

Keywords:

基金项目(Foundation): 湖北省自然科学基金资助项目(2015CFB133)

作者(Author): 谢恒韬,王娟,贾一帆,贾强,潘侠,王龙

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