Turkish Journal of Medical Sciences




The question how fish oil (FO) and soybean oil (SO) change the state of antioxidant and the lipid peroxidation in liver and plasma of rats and the protective role of vitamin E were investigated. Six-week-old forty male Sprague-Dawley rats were divided into five groups. One of the groups fed a control diet, another one fed SO, while the other three groups fed FO diet at the level of 10% Vitamin E supplementation was maintained to three different levels 3, 50, 150 IU/per kg diet in the FO diets and 3 IU vitamin E per kg of the SO diet. At the end of tenth week, blood was drawn under ether anesthesia and finally plasma and red blood cell samples were separated. Liver tissues were washed by 0.9% NaCl, then dried by a filter paper and stored at -60oC. The malondialdehyde (MDA) amount as an indicator of lipid peroxidation was not significantly affected in the SO group, while it was found increased both in serum and liver tissue in the FO group with vitamin E supplementation of 3 IU/kg diet (P

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