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电针镇痛与神经病理性疼痛大鼠脊髓大麻素2受体表达 被引量:2

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摘要 目的:观察电针对慢性坐骨神经缩窄性损伤(CCI)模型大鼠的镇痛效果及脊髓背角、背根神经节大麻素2受体(CB2)表达,探讨电针镇痛可能的机制。方法:健康SD雄性大鼠共40只,随机分为CCI假手术组(n=10);CCI对照组(n=10);CCI假电针组(n=10);CCI电针组(n=10)。所有大鼠均在术前、术后第9、11、13、15、16d进行机械性痛阈测定;各组大鼠于术后第16d,采用Western blot法测定脊髓背角、背根神经节CB2受体蛋白表达。结果:CCI对照组、CCI假电针组和CCI电针组大鼠在治疗前机械性痛阈较术前明显下降,与同一时间段CCI假手术组大鼠比较差异有统计学意义(P<0.05)。治疗后6d,CCI电针组机械性痛阈较治疗前有一定改善(P<0.05);CCI电针组与CCI假电针组和CCI对照组比较脊髓背角、背根神经节CB2的表达有下降的趋势,但差异无统计学意义(P>0.05)。结论:本研究观察到电针治疗能够在一定程度上改善CCI模型大鼠的机械性痛阈,起到一定的镇痛效果,但是本研究结果未能提示其镇痛机制有脊髓背角、背根神经节CB2的参与。
出处 《实用医学杂志》 CAS 北大核心 2012年第24期4068-4070,共3页 The Journal of Practical Medicine
基金 广东省科技计划项目(编号:2010B031600252)
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参考文献15

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