核因子κB在大鼠双侧后肢缺血再灌注后肾损伤中的表达及意义(英文)

被引:1
作者
杨军
胡新华
张强
机构
[1] 中国医学大学附属第一医院骨科
[2] 中国医学大学附属第一医院血管外科
关键词
核因子κB; 缺血再灌注; 肾损伤;
D O I
暂无
中图分类号
R363 [病理生理学];
学科分类号
摘要
目的探讨核因子κB(NF-κB)在大鼠双侧后肢缺血再灌注(I/R)所致肾损伤中的表达及意义。方法建立大鼠双侧后肢I/R模型;48只大鼠随机分为假手术组(I组,n=8)、缺血组(Ⅱ组,n=8)、缺血再灌注组(Ⅲ组,n=32)。Ⅱ组在缺血4 h末,Ⅲ组分别于再灌注4,12,24和48 h切取双肾,应用半定量RT-PCR和Western bolt方法检测肾组织NF-κB p65/IκBβ的mRNA和蛋白产物表达。结果Ⅲ组时各时点NF-κB p65 mRNA表达较Ⅰ、Ⅱ组增加,在灌注后12 h达高峰。P65蛋白产物表达亦逐渐增加,12 h高峰,可持续到术后48 h。IκBβ的mRNA和蛋白表达在I/R后同样开始增加,24 h的表达量最多。结论NF-κB/IκB系统的激活可能在骨骼肌I/R所致肾损伤中发挥重要作用。
引用
收藏
页码:19 / 22
页数:4
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