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. 2013 Jul 19;15(1):36–42. doi: 10.1179/174329210X12650506623168

Protective effect of sesamol against myocardial infarction caused by isoproterenol in Wistar rats

Lakshmanan Vennila 1, Kodukkur Viswanathan Pugalendi 1
PMCID: PMC7067323  PMID: 20196927

Abstract

This study was designed to investigate the cardioprotective effect of sesamol on isoproterenol (ISO)-induced myocardial infarction in adult male albino Wistar rats. The heart damage induced by ISO was indicated by elevated levels of the marker enzymes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), creatine kinase (CK), creatine kinase-MB (CK-MB) and the levels of troponin T and I in the plasma. In addition, lipid peroxidative markers such as thiobarbituric acid reactive substances (TBARS), conjugated dienes (CD) and lipid hydroperoxides (LHP) significantly increased in the plasma and heart. Activities of superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) significantly decreased in the heart and (non-enzymic antioxidants) vitamin C, vitamin E and reduced glutathione (GSH)) levels significantly decreased in the plasma and heart in ISO-rats. Histopathological observations correlated with the biochemical parameters. Administration of sesamol at different doses 50, 100 and 200 mg/kg body weight intraperitoneally for 7 days prevented the above changes and improved towards normality; the 50 mg dose was more effective than the other two doses.

Keywords: ISOPROTERENOL, MYOCARDIAL INFARCTION, SESAMOL, ANTIOXIDANTS

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