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Article Abstract
Objective: To study the effects of grape seed proanthocyanidins extracts(GSPE) and its mechanism on early renal lesions of diabetic rats.
Methods: Diabetic rats induced by alloxan were given GSPE intragastrically for 6 weeks, then the antioxidative indexes and NO content, NOS activity in kidney and serum were measured, and the renal function indexes were tested as well.
Results: Compared with the diabetic group, the urinary protein/24h, levels of blood urea nitrogen(BUN)and serum creatinine(SCr), creatinine clearance rate(CCr) and the ratio of kidney weight/body weight were decreased, the SOD activity in kidney was raised while MDA content was fall in the GSPE group(high dose), and the differences were all significant. The NO content in the kidney and NOS activity in kidney and serum decreased in the GSPE (low dose)group, and there was significant difference when compared with diabetic group( P <0.05) .
Conclusion: GSPE has the effect in protecting kidney of diabetic rats, the mechanism might be related with its action in increasing the renal antioxidative ability,decreasing the content of NO and the activity of NOS in kidney and serum.
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