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和络泄浊方防治单侧输尿管梗阻后大鼠肾间质纤维化的研究 被引量:3

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摘要 目的:探讨和络泄浊方对单侧输尿管梗阻(unilateral ureteral obstruction,UUO)后大鼠肾间质纤维化过程的防治作用。方法:采用UUO大鼠模型,将48只Waster大鼠随机分为假手术组(Sham)、手术组(UUO)、和络泄浊方治疗组(UUO+REL)。在造模后第1天开始和络泄浊方治疗组给予中药15 ml/kg.d-1,分早晚2次灌胃,假手术组和手术组每天给予等量生理盐水灌胃。在造模后第3 d、10 d、20 d、30 d每组取4只处死,左肾组织HE染色,光镜观察肾间质病理形态学变化;免疫组织化学染色法检测α-平滑肌肌动蛋白(-αSMA)的表达;逆转录聚合酶链反应(RT-PCR)检测肾脏基质金属蛋白酶-9(MMP-9)、金属蛋白酶组织抑制因子-1(TIMP-1)mRNA的变化。结果:手术组呈进行性肾间质纤维化,肾小管上皮细胞及间质-αSMA表达明显增加(P<0.01),TIMP-1mRNA的表达明显高于假手术组(P<0.01),中药灌胃组的-αSMA及TIMP-1mRNA表达均明显低于手术组(P<0.01)。MMP-9在手术组术后明显升高,第10天时达到高峰,继之下降。中药灌胃组在第10天后下降幅度较小,在20 d3、0 d时高于手术组(P<0.01)。结论:和络泄浊方对单侧输尿管梗阻后的肾间质纤维化有抑制作用,通过调节MMP-9/TIMP-1的基因表达,减少-αSMA的形成,从而减轻肾间质纤维化。
出处 《山东中医杂志》 2008年第11期768-771,共4页 Shandong Journal of Traditional Chinese Medicine
基金 山东省中医管理局基金项目(编号:2004-146)
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参考文献15

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