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Diabetes type-II exaggerates renal ischemia reperfusion injury by elevation of oxidative stress and inflammatory response

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Author(s): Vaghasiya J | Sheth N | Bhalodia Y | Jivani N

Journal: Journal of Young Pharmacists
ISSN 0975-1483

Volume: 1;
Issue: 2;
Start page: 151;
Date: 2009;
Original page

Keywords: Diabetes Type-II | ischemia | reperfusion | kidney | inflammation | oxidative stress

ABSTRACT
Objective: The present work was designed to investigate the role of Diabetes Mellitus Type-II (DM-II) on renal ischemia reperfusion (I/R)-associated pathophysiology in renal damage. Materials and Methods: DM-II in rats was induced by the administration of nicotinamide (230 mg /kg, i.p.), 15 min prior to a single dose of streptozotocin (65mg/ kg, i.v.). In vivo renal I/R was performed in both DM-II and normal rats. Results and Discussions: Lipid peroxidation, xanthine oxidase activity, and nitric oxide levels were significantly increased in renal tissue after I/R in diabetic rats compared to I/R in normal rats. Levels of antioxidant enzymes such as glutathione, superoxide dismutase, catalase, and glutathione peroxidase were significantly reduced after I/R in diabetic rats compared to normal rats. Serum TNF-α levels, renal tissue myeloperoxidase activity, and apoptosis were also significantly increased after I/R in DM-II rats. Furthermore, DM-II rats that underwent I/R, showed severe tubular cell swelling, interstitial edema, tubular dilatation, hyaline casts, and moderate to severe necrosis. Conclusion: In conclusion, DM-II rats showed exaggerated renal I/R injury. These findings have a major implication in ischemic injury that is prone to develop in DM-II.
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