文章摘要
肖景 孙云松 于俊生 姜超娜 徐平平 王荣.和络泄浊颗粒对大鼠肾间质纤维化miR-200a表达影响[J].,2015,15(30):5834-5838
和络泄浊颗粒对大鼠肾间质纤维化miR-200a表达影响
Effect of Regulating Collateral and Eliminating Turbidity Granules on theExpression of miR-200a in Renal Interstitial Fibrosis in Rats
  
DOI:
中文关键词: 肾纤维化  和络泄浊颗粒  miR-200a
英文关键词: Renal interstitial fibrosis  Regulating Collateral and Eliminating Turbidity  MiR-200a
基金项目:山东省(2013-2014 年度)中医药科技发展计划项目(2013ZDZK-106)
作者单位
肖景 孙云松 于俊生 姜超娜 徐平平 王荣 青岛大学医学院青岛市海慈医疗集团 山东中医药大学青岛大学医学院生物化学与分子生物学教研室 
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中文摘要:
      目的:探索和络泄浊颗粒对大鼠肾脏纤维化中miR-200a 表达的影响及探讨其可能存在的作用机制。方法:30 只SD雄性大 鼠随机分为6 组:假手术组(Sham)、手术组(UUO)及和络泄浊颗粒(UUO+ REG)组各2 组,运用单侧(左)输尿管结扎法制造肾间质 纤维化模型,但Sham组仅游离输尿管,而其余两组则游离并结扎输尿管。术后各组按1 mg/kg·d-1的量进行灌胃,UUO+ REG组 给予REG,其余两组则予生理盐水。术后第7 天和14 天,摘除左梗阻侧肾脏进行免疫组化检查alpha-SMA和荧光定量PCR 检测 miR-200a 的表达。结果:在UUO及UUO+ REG 组,alpha-SMA 表达明显高于Sham 组(P<0.01);UUO+ REG 组低于UUO 组(P< 0.05)。miR-200a 表达水平在UUO 组和UUO+ REG 组都是降低的,但是UUO 组与Sham 组差别明显(P<0.01),其与UUO+ REG组亦有明显的差别(P<0.05)。结论:和络泄浊颗粒可以通过上调miR-200a 延缓肾脏纤维化进展。
英文摘要:
      Objective:To investigate the effects and mechanism of action of REG on microRNA-200a expression in renal interstitial fibrosis rat that was established by unilateral ureter obstruction.Methods:Thirty male Sprague-Dawley (SD) rats were randomly divided into six groups (5 mice/group): two shamoperation groups (Sham), two model groups (UUO), and two drug groups (UUO+REG). Renal interstitial fibrosis was established in UUO and UUO+REG groups, but not in Sham groups, by unilateral ureter obstruction. The left Kidney was harvested from all groups either 7 d or 14 d post-operation and subsequently examined for changes in alpha-SMA or microRNA-200a expression.Results:The expression of alpha-SMA increased significantly (P < 0.01) in both UUO and UUO+REG groups at 7 d and 14 d post-operation; however, there was a significant difference in alpha-SMA expression in UUO+REG group compared with UUO group (P < 0.05). Finally, the expression levels of miR-200a were reduced in both UUO and UUO+REG groups as compared with that in Shamgroups at 7 d and 14d post-operation, while the expression in UUO group was significantly lower than that in Sham(P<0.01) and UUO+REG groups(<0.05)at 7d and 14 d post-operation.Conclusion:REG could delay the progression of chronic renal failure by up-regulating miR-200a.
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