兔肾缺血再灌注损伤时TNF-α、IL-6和bFGF的变化及当归的影响

Effects of Radix Angelicae Sinensis on changes of IL-6, TNF-α and bFGF in renal ischemia/reperfusion injury in rabbits

目的 :探讨当归对兔肾缺血再灌注损伤的防治作用及其机制。方法 :健康成年日本大耳白兔 2 5只 ,随机均分为假手术对照 (control)组、单纯缺血再灌注 (IR)组和缺血再灌注 +当归 (RAS +IR)组。在肾缺血 1h再灌注4 8h后取肾组织作电镜检查 ,并测血清肌酐 (Cr)、肾组织肿瘤坏死因子 (TNF -α)、白细胞介素 - 6 (IL - 6 )和碱性成纤维细胞生长因子 (bFGF)含量。结果 :IR组肾组织变性改变显著 ,RAS +IR组病变轻微 ;IR组Cr、TNF -α和IL - 6含量显著高于control组 (P <0 .0 5 ,P <0 0 5和P <0 0 1) ;RAS +IR组上述指标显著低于IR组。IR组bFGF含量显著低于control组 (P <0 0 1) ,RAS +IR组bFGF含量显著高于IR组 (P <0 0 1)和control组 (P <0 0 5 )。结论 :当归具有防治肾IR损伤的作用 ,其机制可能与其对TNF -α、IL - 6和bFGF等细胞因子的调控有关。

AIM: To determine the effect of Radix Angelicae Sinensis(RAS) on renal ischemia/reperfusion injury in rabbits and to explore its mechanism. METHODS: Twenty-five rabbits were divided randomly into the sham operated group(Control group), renal ischemia/reperfusion injury group(IR group) and RAS+IR group. At the time point of reperfusion 48 h after renal ischemia 1 h, the renal tissue were observed by electron-microscope and the contents of creatinine(Cr) in serum, tumor necrosis factor-α(TNF-α), interleukin-6(IL-6)and basic fibroblast growth factor(bFGF) in the renal tissue were measured. RESULTS: A remarkably degenerative changes in renal tissue were showed under electronmicroscope in IR group , but the changes in RAS+IR group were slight . The contents of Cr, TNF-α and IL-6 in IR group were higher than those in Control group, these parameters in RAS+IR group were lower than those in IR group, the difference between these groups was significant ( P< 0.05 or P< 0.01 ). At the same time, the content of bFGF in IR group was lower than that in Control group( P< 0.01), while the content of bFGF in RAS+IR group was higher than that in IR group( P< 0.01) and Control group( P< 0.05). CONCLUSION: RAS has an effect of alleviating the renal ischemia/reperfusion injury by modulating the production or release of TNF-α, IL-6 and bFGF.