Umbelliferone ameliorates renal function in diabetic nephropathy rats through regulating inflammation and TLR/NF-κB pathway

Publication date: 20 May 2019Source: Chinese Journal of Natural Medicines, Volume 17, Issue 5Author(s): Han-Qing WANG, Sha-Sha WANG, Kuok Chiufai, Qi WANG, Xiao-Lan CHENGAbstractDiabetic nephropathy (DN) is a leading cause of renal failure, contributing to severe morbidity and mortality in diabetic patients. Umbelliferae (Umb) has been well characterized to exert protective effects in diabetes. However, the action and mechanism of Umb in DN remains unclear. In this work, we studied the effect of Umb in a streptozotocin (STZ)-induced DN rat model and explore its underlying mechanism. DN rats were treated withUmb (20, 40 mg·kg–1) orirbesartan (15 mg·kg–1) for 4 weeks. Levels of serum glucose, insulin, blood uric acid, creatinine, triglycerides (TG) and total cholesterol (TC) were measured bycommercial assay kits, respectively. Histopathological changes andinflammatory cytokine levels including IL-6, IL-1β and TNF-α in the kidney were also evaluated. Alterations in the expression of podocin, CD2AP and TLR/NF-κB were assessed by western blotting. Our results showed that Umb reduced renal injury in DN rat model, as evidenced by the decrease in blood glucose, 24 h urinary protein, serum creatinine, and blood uric acid. Umb also significantly ameliorated the renal histopathological alteration, and down-regulated the expression of epithelial-to-mesenchymal transition-related molecular markers podocin and CD2AP. Moreover, Umb inhibited TLR2, ...
Source: Chinese Journal of Natural Medicines - Category: Complementary Medicine Source Type: research

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