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Open Access Paeoniflorin Prevents Diabetic Nephropathy in Rats

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The aim of this study was to test the hypothesis that paeoniflorin prevents the progression of diabetic nephropathy by modulating the inflammatory process. Sprague–Dawley rats were divided into 5 groups: nondiabetic control rats; untreated diabetic model (DM) rats; and DM rats treated with 5, 10, or 20 mg/kg paeoniflorin in drinking water once daily. Rats received a single intravenous injection of streptozotocin to induce diabetes; 9 wk after injection, rats began the 8-wk daily paeoniflorin treatment regimen. Compared with that of nonDM controls, the urinary albumin:creatinine ratio was increased significantly in untreated DM rats; this ratio was decreased in DM rats treated with 5, 10, or 20 mg/kg paeoniflorin compared with that of untreated DM rats. In addition, paeoniflorin treatment effectively suppressed glomerular hypertrophy; blood glucose; the expression of transforming growth factor , type IV collagen, and intercellular adhesion molecule 1; and renal infiltration of macrophages compared with levels in untreated DM rats. Furthermore, renal nuclear factor B activity was increased in untreated but not paeoniflorin-treated DM rats. In conclusion, our data suggest that the preventive effects of paeoniflorin may be mediated by its antiinflammatory actions.

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Document Type: Research Article

Affiliations: 1: Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China 2: Department of Endocrinology, Xijing Hospital, Fourth Military Medical University, Xi'an, China.

Publication date: 2009-12-01

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  • Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.

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