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论文类型：期刊论文

发表时间：2008-03-17

发表刊物：EUROPEAN JOURNAL OF PHARMACOLOGY

收录刊物：SCIE、PubMed

卷号：582

期号：1-3

页面范围：162-167

ISSN号：0014-2999

关键字：diabetes mellitus; blood glucose; lipid peroxidation; antioxidant enzymes; pancreas

摘要：Oxidative stress has been suggested as a contributory factor in development and complication of diabetes. The aim of the present study was to determine the protective effect of aucubin on lipid peroxidation and activities of antioxidant defense systems and to conduct immunohistochemical evaluation of pancreas in streptozotocin-induced diabetic rats. Lipid peroxidation was determined by assessing the concentration of malondialdehyde and activities of antioxidant enzymes - catalase, glutathione peroxidase and superoxide dismutase in liver and kidneys of rats were determined. Changes of blood glucose and immunohistochemical evaluation on pancreas were also investigated as part of the pathology of diabetes. In our study, aucubin treatment lowered blood glucose. Diabetic rats exhibited an increase in the level of lipid peroxidation and decrease in activities of antioxidant enzymes in liver and kidneys as compared to control rats. Administration of aucubin to diabetic rats for 15 days significantly reversed damage associated with diabetes. In addition, diabetic rats showed an obvious decrease in insulin immunoreactivity and the number of beta cells in pancreas, but the pancreas of aucubin-treated rats were improved and the number of immunoreactive beta cells were significantly increased. These results indicated that aucubin may have value as a safe preventive or therapeutic agent against diabetes mellitus. (c) 2007 Elsevier B.V. All rights reserved.