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Asian Journal of Biochemistry
Year: 2009  |  Volume: 4  |  Issue: 4  |  Page No.: 133 - 139

Protective Effect of Squalene on Endogenous Antioxidant Vitamins in Experimentally Induced Myocardial Infarction in Rats

K.H.S. Farvin, A. Surendraraj and R. Anandan    

Abstract: In the present study an attempt has been made to assess the cardioprotective effect of squalene on isoprenaline-induced myocardial infarction in male albino rats with respect to changes in the levels of endogenous antioxidant vitamins in heart tissue. Levels of endogenous antioxidants such as ascorbic acid, α-tocopherol and endogenous squalene content in heart tissue were determined. Significant (p<0.001) reduction was observed in the levels of ascorbic acid, α-tocopherol and endogenous squalene content in the heart tissue of isoprenaline administered rats compared to normal control rats. It is worth noting that, the prior administration of squalene at 2% level along with feed for 45 days significantly (p<0.001) reduced the isoprenaline-induced decline in the levels of these vitamins and restored the membrane bound squalene content at near normal. The results of the present study indicates that the cardioprotective effect of squalene might be ascribable to its antioxidant property thereby sharing the responsibility of these antioxidant vitamins in counteraction of free radicals generated during isoprenaline-induced oxidative stress.

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