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Original Article

. 2013; 4(3): 177-181


Putative antioxidant property of sesame oil in an oxidative stress model of myocardial injury

Mohamed T.S. Saleem, Madhusudhana C. Chetty, S. Kavimani.

Abstract
Background: Sesame oil is a potent antioxidant dietary source for human health. Oxidative stress through
generation of free radicals damages the myocardium in different experimental condition. The present
research was designed to evaluate the antioxidant property of chronic oral administration of sesame oil
against isoproterenol induced myocardial injury.
Methods and results: Male Wistar albino rats were randomly divided into five groups (n 6) and treated
as per treatment protocol with two different doses of sesame oil (5 and 10 ml/kg b.w.) orally for thirty
days. At the end of the treatment all the rats (except control rats) were administered with isoproterenol
(85 mg/kg) two consecutive days and subjected to biochemical and histopathological estimation.
Isoproterenol (group ISO) induced the oxidative myocardial damage via alteration in the endogenous
antioxidant enzymes and myocardial marker enzymes. Sesame oil in both the dose (group S1 and S2)
shows protective mechanism via decreasing thiobarbituric acid reactive substance (TBARS) and
enhancing the endogenous antioxidant enzymes (reduced glutathione (GSH), superoxide dismutase
(SOD) and Catalase). Sesame oil also increased the lactate dehydrogenase (LDH), creatine kinase (CK) and
aspartate transaminase (AST) as a myocardial marker enzyme in heart homogenate. As histologically
evident isoproterenol induced myocardial injury was well preserved by the chronic administration of
sesame oil. The protective role of sesame oil was compared with the reference standard a-tocopherol
(group S3) also showing the similar effect.
Conclusion: From this finding it has been concluded that chronic administration of sesame oil offers
cardio protective action via putative antioxidant property.

Key words: Antioxidants Ischemic reperfusion injury Myocardial infarction Neutraceutical


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