tokens: Administration of green tea ( 100 mg / kg / day , p . o . ) and vitamin E ( 100 mg / kg / day , p . o . ) together for 30 consecutive days and challenged with ISO on the day 29th and 30th , showed a significant ( P < 0 . 05 ) decrease in heart weight , serum marker enzymes , lipid peroxidation , Ca + 2 ATPase and a significant increase in the body weight , endogenous antioxidants , Na + / K + ATPase and Mg + 2 ATPase when compared with ISO treated group and green tea or vitamin E alone treated groups .