Therapeutic effects of tender coconut water on oxidative stress in fructose fed insulin resistant hypertensive rats

• Published in: Asian Pacific journal of tropical medicine Vol. 5; no. 4; pp. 270 - 276
• Main Authors: Bhagya, D, Prema, L, Rajamohan, T
• Format: Journal Article
• Language: English
• Published: India Elsevier B.V 01.04.2012; Department of Biochemistry, University of Kerala, Kariavattom Campus, Kerala, Trivandrum, 695581, India%Department of Food Science and Nutrition, Agricultural College,Vellayani, Trivandrum, Kerala, India
• Subjects: Analysis of Variance; Animals; Antioxidants - pharmacology; coconut; Cocos; Enzymes - metabolism; Fructose - administration & dosage; Fructose - toxicity; Histopathology; Hyperinsulinemia; Hypertension; Hypertension - drug therapy; Insulin Resistance - physiology; Lipid; Lipid peroxidation; Lipid Peroxidation - drug effects; Male; Malondialdehyde - metabolism; Oxidative; Oxidative stress; Oxidative Stress - drug effects; peroxidation; Plant Extracts - pharmacology; Rats; Rats, Sprague-Dawley; stress; Tender; Tender coconut water; Up-Regulation; water; Hypertension; Lipid peroxidation; Oxidative stress; Hyperinsulinemia; Histopathology; Tender coconut water
• ISSN: 1995-7645; 2352-4146
• DOI: 10.1016/s1995-7645(12)60038-8

<正>Objective:To investigate whether tender coconut water(TCW) mitigates oxidative stress in fructose fed hypertensive rats.Methods:Male Sprague Dawley rats were fed with fructose rich diet and treated with TCW(4 mL/100 g of body weight) for 3 subsequent weeks.Systolic blootl pressure was measured every three days using the indirect tail cuff method.At the end of the experimental period,plasma glucose and insulin,serum triglycerides and free fatly acids, lipid peroxidation markers(MDA,hydroperoxides and conjugated dienes) and the activities of antioxidant enzymes were analyzed in all the groups.Results:Treatment with TCW significandy lowered the systolic blood pressure and reduced serum triglycerides and free fatty acids.Plasma glucose and insulin levels and lipid peroxidation markers such as MDA,hydroperoxides and conjugated dienes were significantly reduced in fructose fed rats treated with TCW.Activities of antioxidant enzymes are up regulated significantly in TCW treated rats.Hislopathological analysis of liver showed that TCW treatment reduced the lipid accumulation and inflammatory infiltration without any significant hepatocellular damage.Conclusions:The overall results suggest that, TCW treatment could prevent and reverse high blood pressure induced by high fructose diet probably by inhibition of lipid peroxidation,upregulation of antioxidant status and improved insulin sensitivity.