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IJEB Vol.47(09) [September 2009] >


Title: Effect of dietary lipid, carnitine and exercise on lipid profile in rat blood, liver and muscle
Authors: Karanth, Jyothsna
Jeevaratnam, K
Keywords: Carnitine
Exercise
Hydrogenated fat
Peanut oil
Tissue lipids
Rats
Issue Date: Sep-2009
Publisher: CSIR
Abstract:  Aim of this study was to investigate the influence of physical exercise on effects of the daily intake of vegetarian diet of either vegetable hydrogenated fat (HF) or peanut oil (PO) with or without carnitine on the lipid profile. Eight groups of male Wistar rats were fed HF-diet (4 groups) or PO-diet (4 groups), with or without carnitine for 24 weeks. One group for each diet acted as sedentary control while the other groups were allowed swimming for 1 hr a day, 6 days/week, for 24 weeks. Plasma triglycerides (TG), total cholesterol (TC), HDL-cholesterol, free fatty acids (FFA), liver and thigh muscle glycogen, total fat (TF), TG, TC and FFA were analyzed. HF-fed rats showed significantly increased plasma TC, VLDL+LDL-cholesterol and TG compared to PO-fed rats, wherein a lowered plasma TC, TG levels in all the groups with significantly increased liver cholesterol and decreased muscle cholesterol was observed. Physical exercise of moderate intensity reduced plasma TC and TG accompanied by significantly reduced tissue TG and cholesterol while FFA and glycogen increased in all the groups. The influence of exercise was less pronounced in carnitine supplemented rats since carnitine could significantly reduce TG in plasma and tissues of sedentary rats. Results from the present study showed that the intake of HF diet significantly increased the plasma and tissue lipid profile and MUFA-rich diet or carnitine supplementation and/or exercise may ameliorate the deleterious effects of HF.
Page(s): 748-753
ISSN: 0975-1009 (Online); 0019-5189 (Print)
Source:IJEB Vol.47(09) [September 2009]

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