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高乌甲素对手术致痛大鼠的镇痛及局麻作用的研究 被引量:19

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摘要 目的研究高乌甲素对手术致痛大鼠的镇痛及局麻作用。方法 40只清醒大鼠分组实验:①设生理盐水腹腔注射16min后行外科手术组和高乌甲素腹腔注射16min后行外科手术组来证实高乌甲素的镇痛作用;②并设术后16min给药组来证实高乌甲素有无超前镇痛效应;③设局注组探讨高乌甲素的局麻作用。在行为学实验中,计数术后清醒大鼠0~60min12个时间段内的累积疼痛评分。1.5h后将大鼠处死,灌注,取材和冰冻切片。SP法进行免疫组化染色,并做NADPH-d组化,观察相应的指标NOS在脊髓上的变化情况。结果①高乌甲素组同生理盐水外科手术组比较,脊髓背角浅层一氧化氮合酶(NOS)数目明显减少(P〈0.05);②高乌甲素预先给药组对疼痛的抑制和NOS的表达均强于术后给药组(P〈0.01);③局部注射高乌甲素在抑制痛行为和NOS的表达明显强于局注生理盐水组(P〈0.01)。结论①高乌甲素腹腔注射可抑制手术致痛大鼠的疼痛反应以及脊髓NOS表达;②高乌甲素预先给药,镇痛作用好;③高乌甲素还表现出局部麻醉作用。
出处 《海峡药学》 2011年第4期29-31,共3页 Strait Pharmaceutical Journal
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参考文献5

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