急性肾功能衰竭应用P38MAPK抑制剂的研究

Effects of p38 MAPK Inhibitor on Acute Renal Failure

目的观察肾缺血后分别于再灌注前、后静脉注射SB203580,大鼠肾组织细胞凋亡及肾功能的变化,探讨P38MAPK抑制剂对肾组织的保护作用。方法大鼠肾缺血后于再灌注前、后尾静脉注射SB203580,测定不同时间点血肌酐和尿素氮值检测肾功能变化;用原位凋亡检测法观察各时间点TUNEL阳性细胞数,检测细胞凋亡情况。结果于再灌注前应用P38MAPK特异性抑制剂SB203580后,肾功能损害程度及TUNEL阳性细胞均减少,于再灌注后注射SB203580对肾功能损害程度及TUNEL阳性细胞均无明显影响。结论再灌注早期应用P38MAPK有减轻细胞凋亡和保护肾功能的作用。

Objective To observe the change of renal function and cell apoptosis after injecting SB203580 before and after reperfusion, and investigate the protective role of p38 MAPK inhibitor SB203580 for ischemic/reperfused kidney in rats. Methods p38 MAPK inhibitor SB203580 was injected by tail vein into rats with ischemic kidney before and after reperfusion. The plasma levels of creatine and BUN were measured at various time points. The apoptotic rate in the renal tissue at various time points was determined using TUNEL. Results Administering SB203580 before reperfusion could decrease renal cell apoptotic rate, and renal function damage. Administering SB203580 after reperfusion had not obvious effect on the renal function and cell apoptosis. Conclusion Administering p38 MAPK inhibitor before reperfusion can attenuate post-ischemic renal fuction damage and cell apoptosis.