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http://dx.doi.org/10.4162/nrp.2009.3.3.208

Effect of vitamin $B_6$ deficiency on antioxidative status in rats with exercise-induced oxidative stress  

Choi, Eun-Young (Department of Food and Nutrition, Duksung Women's University)
Cho, Youn-Ok (Department of Food and Nutrition, Duksung Women's University)
Publication Information
Nutrition Research and Practice / v.3, no.3, 2009 , pp. 208-211 More about this Journal
Abstract
This study investigated the effect of vitamin $B_6$ deficiency on antioxidant enzyme activities and lipid profile in rats with exercise-induced oxidative stress. Forty eight rats were fed either a vitamin $B_6$ deficient diet (B6-) or a control diet (control) for 4 weeks and then subdivided into 3 groups: pre-exercise (PreE); post-exercise (PostE); recess after exercise (recessE). Compared to those of control group, plasma catalase and hepatic cytosol superoxide dismutase (SOD, EC 1.15.1.1) activities of B6- group were lower regardless of exercise. The ratio of reduced glutathione/oxidized glutathione (GSH/GSSG) of B6 - group was lower in PreE and there was no difference between PostE and recessE. The level of malondialdehyde (MDA) of B6- was significantly higher in PreE and PostE. High-density lipoprotein-cholesterol (HDL-C) level of B6- group was lower regardless of exercise. Atherosclerotic index of $B_6$- group was higher in PreE and there was no difference between PostE and recessE. It is suggested that a reduction in antioxidative status caused by vitamin $B_6$ deficiency may be aggravated under exercise-induced oxidative stress.
Keywords
Vitamin $B_6$ deficiency; exercise; antioxidative enzymes; oxidative stress;
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