Effect of substances obtained from grape seed on nitrogen oxide system under experimental diabetes
Keywords:
diabetes, arginine, citrulline, arginase, grape seedAbstract
The aim of the present research was to study influence polyphenolic concentrates “Merlo”, “Rkacitelli” on NO-synthase system at control animals and animals with experimental DM1 and DM2.
It has been shown that the increase of arginine content in blood serum, which we observed in our experiment, was accompanied by decrease of NO. This effect can be caused by decrease of enzyme affinity to substrate and also by decrease of arginine transport into cells taking place under DM1. The normalization of the NO, arginine and citrulline levels in rats blood serum after polyphenol concentrates administration apparently and most likely depends on their high antioxidant activity.
References
1. Akamine E.H. et al.: Correction of endothelial dysfunction in diabetic female rats by tetrahydrobiopterin and chronic insulin. J. Vasc. Res., 43, 309, 2006.
2. Anfossi G. et al.: Contribution of insulin resistance to vascular dysfunction. Arch. Physiol. Biochem., 115, 199, 2009.
3. Caimi G.C.C. et al.: Diabetes mellitus: oxidative stress and wine. Curr. Med. Res. Opin., 19, 581, 2003.
4. Chein W.Y. et al.: Increased plasma concentration of nitric oxide in type 2 diabetes but not in nondiabetic individuals with insulin resistance. Diabetes Metab., 31, 63, 2005.
5. Chen M.J. et al.: Effect of proanthocyanidins on COX-2 enzyme activity and COX-2 mRNA protein expression in LPS-induced RAW264.7 cells. Yao Xue Xue Bao, 40, 406, 2005.
6. Davidson M.: A review of the current status of the management of mixed dyslipidemia associated with diabetes mellitus and metabolic syndrome. Am. J. Cardiol., 22, 19L, 2008.
7. Friederich M. et al.: Diabetes, oxidative stress, nitric oxide and mitochondria function. Curr. Diab. Rev., 5, 120, 2009.
8. Kasono K. et al.: Nicorandil improves diabetes and rat islets β-cell damage induced by streptozotocin in vivo and in vitro. Europ. J. Endocrinol., 151, 277, 2004.
9. Santangelo C. et al.: Polyphenols Intracellular signalling and inflammation. Ann. Ist. Super. Snita., 43, 394, 2007.
10. Sobrevia L. et al.: A role for insulin on L-arginine transport in fetal endothelial dysfunction in hyperglycemia. Curr. Vasc. Pharmacol., 7, 467, 2009.
11. Steinberg H.O. et al.: Insulin mediated nitric oxide production is impaired in insulin resistance. Diabetes, 46, 24, 1997.
12. Terra X. et al.: Inhibitory effects of grape seed procyanidins on foam cell formation in vitro. J. Agric. Food. Chem., 57, 2588, 2009.
13. Vanhoutte Р.М.: Endothelial dysfunction. The First Step toward coronary Arteriosclerosis. Circ. J., 73, 595, 2009.
14. Wei W. et al.: Oxidative stress, diabetes, and diabetic complications. Hemoglobin, 33, 370, 2009.
15. Yasuda H. et al.: NO-mediated cytotoxicity contributes to multiple low-dose streptozotocin-induced diabetes but not to NOD diabetes. Diabetes Res. Clin. Pract., 83, 200, 2009.
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