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Relationship between nuclear factor-κB activity and kidney injury in rats with postburn sepsis
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- Author:
- No author available
- Journal Title:
- CHINESE CRITICAL CARE MEDICINE
- Issue:
- 12
- DOI:
- 10.3760/j.issn:1003-0603.2005.12.006
- Key Word:
- 脓毒症;烫伤;核转录因子-κB;肿瘤坏死因子-α;肾损伤
Abstract： 目的研究烫伤脓毒症大鼠肾脏核转录因子-κB (NF-κB)活化与肾损伤的关系.方法采用30%总体表面积Ⅲ度烫伤加内毒素攻击制备烫伤脓毒症大鼠模型.54只Wistar大鼠随机分为正常对照组、烫伤脓毒症1、2、6、12和24 h组,烫伤脓毒症1、2和6 h+NF-κB抑制剂吡咯烷二硫基甲酸酯(PDTC)组.采用凝胶电泳迁移率改变分析法(EMSA)检测肾组织NF-κB活性;采用酶联免疫吸附法检测血浆及肾组织中肿瘤坏死因子-α(TNF-α)含量的变化;采用自动生化分析仪检测血肌酐(SCr)和尿素氮(BUN)含量.结果肾组织NF-κB活性于烫伤脓毒症后1 h明显增强并达到高峰(P<0.01),PDTC可显著降低烫伤脓毒症后1 h NF-κB的活性.烫伤脓毒症后1 h和2 h血浆及肾组织中TNF-α水平均明显增高(P均<0.01),PDTC可显著降低伤后血浆TNF-α水平(P均<0.01),对肾组织中TNF-α水平影响不明显.烫伤脓毒症后BUN及SCr含量均明显增高(P均<0.01),PDTC对BUN和SCr含量均无显著影响.结论 NF-κB抑制剂可降低烫伤脓毒症大鼠肾组织NFκB活性,但对肾脏功能无明显保护作用.
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