HEALTH NEWS
Study Title:
Effect of squalene on tissue defense system in isoproterenol-induced myocardial infarction in rats.
Study Abstract
This study was designed to examine the effects of squalene on tissue antioxidant status in isoproterenol-induced myocardial infarction in male albino rats. Levels of diagnostic marker enzymes [alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), and creatine phosphokinase (CPK)] in plasma, lipid peroxides, reduced glutathione, and the activities of glutathione-dependent antioxidant enzymes [glutathione peroxidase (GPx) and glutathione-S-transferase (GST)] and antiperoxidative enzymes [catalase (CAT) and superoxide dismutase (SOD)] in the heart tissue of experimental groups of rats were determined. The prior administration of squalene at 2% level along with feed for 45 days significantly prevented the isoproterenol-induced elevation in the levels of diagnostic marker enzymes in plasma of experimental rats. Squalene also exerted an antioxidant effect against isoproterenol-induced myocardial infarction by blocking the induction of lipid peroxidation. A tendency to prevent the isoproterenol-induced alterations in the level of reduced glutathione and in the activities of glutathione-dependent antioxidant enzymes and antiperoxidative enzymes was also observed. The cardioprotective effect of squalene might be ascribable to its antioxidant property and membrane stabilizing action.
Study Information
Effect of squalene on tissue defense system in isoproterenol-induced myocardial infarction in rats.
Pharmacol Res.
2004 September
Full Study
http://www.ncbi.nlm.nih.gov/pubmed/15225664/Recent News
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