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Medium-chain triglycerides and monounsaturated fatty acids potentiate the beneficial effects of fish oil on selected cardiovascular risk factors in rats.

Vijay Kumar Reddy, K. and Maheshwaraiah, A. and Akhilender Naidu, K. (2016) Medium-chain triglycerides and monounsaturated fatty acids potentiate the beneficial effects of fish oil on selected cardiovascular risk factors in rats. Journal of Nutritional Biochemistry, 28. pp. 91-102. ISSN 0955-2863

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Abstract

Fish oil (FO) rich in eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) is known to reduce the risk of cardiovascular diseases (CVDs). Little information is known regarding the influence of lipid composition in the background diet on the modulatory effect of FO supplementation on CVDs. The present study was designed to investigate the influence of various background dietary lipids and FO on selected cardiovascular risk factors in rats. Adult Wistar rats were fed semisynthetic diet with FO at 1.0% or 2.0% along with other lipids, namely, medium-chain triacylglycerols (MCTs), monounsaturated fatty acids (MUFAs), n-6 polyunsaturated fatty acids (PUFAs) and n-3 PUFAs, for 5 weeks. Some of the potent CVD risk factors were estimated in the rats. FO at 1.0% and 2.0% has significantly reduced serum lipid peroxides, total cholesterol, triglycerides (TAGs), tumor necrosis factor-α, interleukin-6 and C-reactive protein; liver and adipose TAG and cholesterol levels in MCT, MUFA and n-6 PUFA diet groups. Notably, these alterations were comparatively higher in 1.0% FO-substituted MCT and MUFA diet groups. Interestingly, feeding of FO along with n-3 PUFAs did not show additive effect in attenuation of these factors. Serum liver EPA and DHA levels were remarkably elevated in rats fed FO-enriched MCT or MUFA diets. Our results suggest that MCTs or MUFAs in the background diet might promote the beneficial effects of FO on CVDs.

Item Type: Article
Uncontrolled Keywords: Fish oil; Cardiovascular disease; n-3 PUFA; Fatty acids; Cytokines; Arachidonic acid
Subjects: 500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 17 Fatty Acid Chemistry
600 Technology > 08 Food technology > 28 Meat, Fish & Poultry > Fish
Divisions: Dept. of Biochemistry
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 11 Jan 2016 08:23
Last Modified: 22 Dec 2016 10:51
URI: http://172.16.1.6/id/eprint/12086

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