叶圣荣,施琳琦,李丹,王雪雅,周兴辉

• 1:浙江省台州市中西医结合医院

摘要(Abstract)：

目的观察汉黄芩苷对肾缺血/再灌注(I/R)损伤大鼠肾功能及对NF-κB/iNOS/NO通路的影响并探讨其机制。方法制备肾I/R模型大鼠,按随机数字表法分为模型组、乌司他丁组及汉黄芩苷低(5 mg/kg)、中(25 mg/kg)、高(75 mg/kg)剂量组,模型组及假手术组给予等量0.9%氯化钠注射液灌胃。再灌注后24 h,检测各组大鼠肾功能,苏木素-伊红(HE)染色观察肾组织病理学变化,试剂盒检测肾组织中过氧化氢酶(CAT)、超氧化物歧化酶(SOD)、一氧化氮合酶(iNOS)活性、还原性谷胱甘肽(GSH)、丙二醛(MDA)含量及一氧化氮(NO)水平,蛋白印迹(WB)法检测肾组织中NF-κB表达情况。结果与假手术组比较,模型组大鼠肾功能显著下降,血液中血清肌酐(Scr)、血尿素氮(BUN)含量显著升高,肾组织出现肾小管上皮细胞水肿、脱落、小管腔坏死等病理变化,组织病理评分明显升高,CAT、SOD、GSH活性显著下降,MDA含量显著升高,NF-κb蛋白核转移水平明显增加,iNOS活性、NO水平显著增高;与模型组比较,汉黄芩苷低、中、高剂量组大鼠肾功能均明显恢复,肾组织病理变化均显著改善,组织病理评分显著降低,CAT、SOD、GSH活性显著升高,MDA含量显著下降,NF-κb蛋白核转移水平明显减少,iNOS活性、NO水平显著降低,均呈剂量依赖效应(均P<0.05)。结论汉黄芩苷具有提高肾功能,保护缺血/再灌注所致肾损伤的功能,其机制可能是通过抑制氧化应激反应和NF-κB/iNOS/NO通路的激活而实现。

关键词(KeyWords)： 汉黄芩苷;肾缺血/再灌注损伤;肾功能;NF-κB/iNOS/NO通路

Abstract:

Keywords:

基金项目(Foundation): 浙江省自然科学基金资助项目(LY16H160078)

作者(Author): 叶圣荣,施琳琦,李丹,王雪雅,周兴辉

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