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腺苷后处理对大鼠缺血再灌注心肌NF-κB和IL-1β的影响

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摘要 目的评价腺苷对大鼠心肌细胞核转录因子(NF-κB)及白介素-1β(IL-1β)表达的影响,探讨腺苷后处理对缺血再灌注心肌保护作用的分子机制。方法健康雄性Wistar大鼠32只随机分为4组:假手术组、再灌注组(I/R)、缺血后处理组、腺苷后处理组,每组8只,制作大鼠心肌缺血再灌注模型。光镜下观察心肌组织形态学改变,免疫组化检测心肌组织中NF-κB的表达,ELISA法测定心肌中IL-1β含量。结果与假手术组比较,I/R组心肌损害程度增加,免疫组织化学染色可见NF-κB蛋白表达显著增强且主要表达在心肌细胞核(P<0.01),IL-1β的含量明显升高(P<0.01);与I/R组相比,腺苷后处理组HE染色心肌变性减轻,NF-κB表达减少(P<0.01),IL-1β的含量降低(P<0.01);腺苷后处理组和缺血后处理组相比较,差异无统计学意义(P>0.05)。结论腺苷后处理对缺血再灌注心肌具有保护作用,其机制可能与腺苷后处理抑制NF-κB活性,减少IL-1β的表达有关。
作者 田金 王雄
出处 《中西医结合心脑血管病杂志》 2010年第8期959-961,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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