Abstract

 
 
 Mitochondrial and lysosomal membranes are prominent membranes of cardiac cells and are the factors that determine membrane function in myocardial ischemia. In this study, isolation of mitochondria and lysosome from heart tissue under the control, isoproterenol (ISO) (8.5mg/100g) induced cardiotoxic rats and oral pretreatment with Z. armatum fruit (200, 400mg/kg body weight) treated rats. Further characterization of marker enzymes was done. A decreased in the activity of all the mitochondrial and lysosomal marker enzymes in ISO administered cardiotoxic rats when compared to control rats which indicate ISO decreased the stability of the membrane. Pretreatment with hydroethanolic extract of Z. armatum fruit to ISO induced rats significantly reverted these biochemical alterations near to normal. The possible mechanism for the protection of heart mitochondria and lysosome against oxidative damage induced by ISO might be due to quenching of free radicals and enhancing the action of marker enzymes.
 
 
Published Version
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