作者: Ning Yan , Li Wen , Rui Peng , Hongmei Li , Handeng Liu
DOI: 10.1155/2016/8738760
关键词:
摘要: Diabetic nephropathy (DN) is one of the most common complications diabetes mellitus (DM). However, exact mechanism not clearly understood. In this study, our results showed that 24 h urinary protein, kidney index, and glomerular area were decreased, while creatinine clearance ratio was increased in DN rats when treated with NAR 50 mg/d for 6 weeks. Mesangial cell (MMCs) proliferation inhibited group by 3,(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT), cycle analysis cells stayed G2 phase group. And treatment attenuated deposition ECM MMCs. Moreover, data let-7a downexpressed both MMCs under high glucose condition. Surprisingly, affected expressions Col4 FN through upregulating addition, we found negatively regulated expression transforming growth factor-β1 receptor 1 (TGFBR1), TGFBR1 required let-7a-mediated downregulation TGF-β1/smad signaling. Interestingly, TGF-β1/smads signaling activation let-7a. Therefore, findings indicated ameliorated injury regulating let-7a/TGFBR1