title: Effect of Eugenia Jambolana seed kernel on antioxidant defense system in streptozotocin-induced diabetes in rats.
abstract: Increased oxidative stress has been suggested to be involved in the pathogenesis and progression of diabetic tissue damage. The aim of this study was to investigate the effect of ethanolic extract of Eugenia jambolana seed kernel on antioxidant defense systems of plasma and pancreas in streptozotocin-induced diabetes in rats. The levels of glucose, vitamin-C, vitamin-E, ceruloplasmin, reduced glutathione and lipidperoxides were estimated in plasma of control and experimental groups of rats. The levels of lipidperoxides, reduced glutathione and activities of superoxide dismutase, catalase and glutathione peroxidase were assayed in pancreatic tissue of control and experimental groups of rats. A significant increase in the levels of plasma glucose, vitamin-E, ceruloplasmin, lipid peroxides and a concomitant decrease in the levels of vitamin-C, reduced glutathione were observed in diabetic rats. The activities of pancreatic antioxidant enzymes were altered in diabetic rats. These alterations were reverted back to near normal level after the treatment with Eugenia jambolana seed kernel and glibenclamide. Histopathological studies also revealed that the protective effect of Eugenia jambolana seed kernel on pancreatic beta-cells. The present study shows that Eugenia jambolana seed kernel decreased oxidative stress in diabetic rats, which inturn may be due to its hypoglycemic property.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Madras, Guindy Campus, Chennai, Tamil Nadu 600 025, India.
authors.forename: Kasiappan
authors.initials: K
authors.lastname: Ravi
authors.forename: Balasubramanian
authors.initials: B
authors.lastname: Ramachandran
authors.forename: Sorimuthu
authors.initials: S
authors.lastname: Subramanian
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D001205:Ascorbic Acid / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D002570:Ceruloplasmin / Q000032:analysis; D003921:Diabetes Mellitus, Experimental / Q000188:drug therapy / Q000378:metabolism* / Q000473:pathology; D008297:Male; D018384:Oxidative Stress; D010936:Plant Extracts / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D012639:Seeds; D013311:Streptozocin; D013482:Superoxide Dismutase / Q000378:metabolism; D027842:Syzygium; D014810:Vitamin E / Q000097:blood
chemical_list: D000975:Antioxidants; D001786:Blood Glucose; D010936:Plant Extracts; D014810:Vitamin E; D013311:Streptozocin; D013482:Superoxide Dismutase; D002570:Ceruloplasmin; D001205:Ascorbic Acid