谷歌浏览器插件
订阅小程序
在清言上使用

Triptolide Improves Renal Injury in Diabetic Nephropathy Rats through TGF-beta 1/Smads Signal Pathway

ENDOCRINE METABOLIC & IMMUNE DISORDERS-DRUG TARGETS(2021)

引用 9|浏览0
暂无评分
摘要
Objective: To investigate the therapeutic effect and mechanism of Triptolide on renal injury in diabetic nephropathy rats. Methods: A total of 15 male SD rats aged 8 weeks were randomly divided into five groups (3 rats in each group): control group, model group, Triptolide low-dose (Triptolide-L) group, Triptolide medium-dose (Triptolide-M) group, Triptolide high-dose (Triptolide-H) group. The rat models of diabetic nephropathy (DN) were established by a single intraperitoneal injection of STZ after being fed with high-fat and high-sugar diet for 4 weeks, and the fasting blood glucose (FBG) concentration of rats was detected. After 4 weeks, HE-staining was used to evaluate the renal pathological damage in rats; biochemical analysis was used to determine the blood urea nitrogen (BUN), serum creatinine (SCr), total cholesterol (TC), triglyceride (TG); ELISA was used to measure the serum inflammatory factor levels; Western blot (WB) was used to detect the expression of TGF-beta 1/Smads pathway proteins. Results: In the four FBG tests (once a week), the FBG concentration in the model group was significantly higher than that in the control group, while Triptolide-treated rats were significantly lower than that in the model group. Rats in Model group showed obvious renal injury, and Triptolide significantly improved the renal injury in DN rats. Compared with the control group, the expression of BUN, SCr, TC, TG, inflammatory factors TNF-alpha, IL-6 and IL-1 beta in the model group increased significantly. WB results showed that the expressions of TGF-beta 1, Smad3, alpha-SMA and vimentin in the kidney significantly increased, while the Smad7 expression significantly decreased. Triptolide significantly reduced the levels of BUN, SCr, TC, TG and TNF-alpha, IL-6, IL-1 beta in diabetic rats, decreased the expression of TGF-beta 1, Smad3, alpha-SMA, vimentin, and increased the Smad7 expression. In different doses of Triptolide treatment group, its effect showed a significant concentration dependence. Conclusion: Triptolide alleviates renal injury in diabetic rats by inhibiting the TGF-beta 1/Smads signaling pathway.
更多
查看译文
关键词
Triptolide, TGF-beta 1/Smads pathway, diabetic nephropathy, renal injury, rats, Glomerular Filtration Rate (GFR)
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要