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利胆汤对大鼠急性重症胆管炎所致的肝损伤的作用机制

International Journal of Pathology and Clinical Medicine(2017)

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Abstract
目的:研究利胆汤对急性重症胆管炎的大鼠所致肝损伤的作用机制.方法:选择健康的Wistar大鼠60只,3月龄,雄性,随机分组为对照组、模型组、胆宁片组、利胆汤低剂量组、中剂量组和高剂量组6组,每组10只.分别于术后立刻、术后6h、术后12h、术后24h4个时间点收集大鼠胆汁,以及检测大鼠胆总管压力;对照组和模型组灌胃给予0.9%的氯化钠;胆宁片组灌胃给予胆宁片0.5 g/(kg.d);各利胆汤剂量组:6,12和24 g/(kg.d),灌胃给药3天后处死大鼠.HE染色观察大鼠肝病理形态;ELISA检测的方法大鼠血清中的细胞因子IL-6,TNF-α水平;Q-PCR法检测大鼠肝脏巨噬细胞移动抑制因子(migration inhibitory factor,MIF)和Toll样受体4(Toll-like receptor 4,TLR4)基因的表达.结果:利胆汤能明显的降低血清细胞因子IL-6(P<0.05)、TNF-α的表达(P<0.0l),并且明显抑制MIF和TLR4的表达(P<0.01).结论:利胆汤能够改善大鼠急性重症胆管炎所致的肝损伤,作用机制可能通过抑制MIF和TLR4的表达和下调IL-6,TNF-α的表达水平实现的.
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Key words
lidantang,acute cholangitis,TNF-α,IL-6,migration inhibitory factor,Toll-like receptor 4
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