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2012 Volume 4 Issue 1

Modulation of antioxidant status, carbohydrate and lipid metabolism by melatonin on streptozotocin induced diabetic rats


Abstract
Melatonin, “synchronizer of the biological clock” is major hormones secreted from the pineal gland have various therapeutic effects. The present study was designed to explore the modulatory effect of melatonin on antioxidant status, glucose and lipid metabolism in streptozotocin (STZ) induced diabetic rats. Male Wistar rats weighing 180-200 g were made diabetic by administration of streptozotocin (STZ) (40 mg/kg body weight) intraperitoneally. Melatonin was administered intraperitoneally at a dose of 2 mg/kg body weight to STZ-induced diabetic rats for 30 days. Body weight, blood glucose, carbohydrate metabolic enzyme, lipid profile, antioxidant and lipid peroxidation status were assessed. The level of the blood glucose, carbohydrate metabolic enzymes (glucose-6-phosphatase and fructose-1,6-bisphosphatase) and lipid peroxidative marker (TBARS) were increased in STZ induced diabetic rats while the melatonin treatment revert back to the near normal condition. In contrast, administered melatonin resulted in an increased in body weight and insulin secretion in diabetic rats. The enzymatic antioxidants (SOD, CAT and GPX) and non-enzymatic antioxidants (GSH, vitamin C and vitamin E) were also increased by melatonin treatment. The cholesterol and phospholipids which were elevated in diabetic rats were normalized by the melatonin administration. Hence these findings indicate that melatonin protects against STZ induced oxidative stress and thus explain its use in treatment of diabetes by modulating lipid and glucose metabolism.

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JOURNAL OF BIOCHEMICAL TECHNOLOGY
JOURNAL OF BIOCHEMICAL TECHNOLOGY
Journal of Biochemical Technology is a double-blind peer reviewed International Journal published by the Deniz Publication on behalf of the Biochemical Technology Society, a Registered Charity Organization from India

AREA OF INTEREST
AREA OF INTEREST
new advances in enzymatic and protein mechanims; applied molecular genetics and biotechnology; genomics and proteomics; metabolic; medical, environmental, food and agro biotechnology.

FOCUS AND SCOPE
FOCUS AND SCOPE
Journal of Biochemical Technology provides a publication on all aspects of biochemistry, biotechnology & bioinformatics and applications in biology and medicine. Areas of high interest cover new advances in enzymatic and protein mechanisms; applied molecular genetics and biotechnology; computational biology, genomics and proteomics; metabolic & tissue engineering; medical, environmental, Pharmacy and pharmaceutical chemistry, food and agro-biotechnology.

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This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Keywords include, Biochemical Research: Endo/exocytosis, Trafficking, Membrane Biology, Cell Migration, Cell-Matrix Organelle Biogenesis, Cytoskeleton Proteolysis, Cell Death, Cell Cycle, Cancer, Cell Growth/Death, Differentiation, Drug Targets, Gene Therapy, Models of Disease, Proteomics, Stem Cells, Bioenergetics, Mitochondria, Free Radicals, Redox Signaling, Ion Transport/Channels, Oxidative