title: Effect of green tea and vitamin E combination in isoproterenol induced myocardial infarction in rats.
abstract: The present study was aimed to investigate the combined effects of green tea and vitamin E on heart weight, body weight, serum marker enzymes, lipid peroxidation, endogenous antioxidants and membrane bound ATPases in isoproterenol (ISO)-induced myocardial infarction in rats. Adult male albino rats, treated with ISO (200 mg/kg, s.c.) for 2 days at an interval of 24 h caused a significant (P<0.05) elevation of heart weight, serum marker enzymes, lipid peroxidation and Ca+2 ATPase level whereas there was a significant (P<0.05) decrease in body weight, endogenous antioxidants, Na+/ K+ ATPase and Mg+2 ATPase levels. 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. These findings indicate the synergistic protective effect of green tea and vitamin E during ISO induced myocardial infarction in rats.
authors.affiliation: Pharmacy Department, Faculty of Technology and Engineering, The M. S. University of Baroda, Vadodara, 390 002, Gujarat, India. amanrx@yahoo.com
authors.forename: Aman
authors.initials: A
authors.lastname: Upaganlawar
authors.forename: Chintan
authors.initials: C
authors.lastname: Gandhi
authors.forename: Ramchandran
authors.initials: R
authors.lastname: Balaraman
mesh_terms: D000251:Adenosine Triphosphatases / Q000378:metabolism; D000704:Analysis of Variance; D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D004357:Drug Synergism; D007545:Isoproterenol / Q000633:toxicity; D015227:Lipid Peroxidation / Q000187:drug effects; D008297:Male; D009203:Myocardial Infarction / Q000139:chemically induced / Q000517:prevention & control*; D009206:Myocardium / Q000201:enzymology / Q000378:metabolism; D009929:Organ Size / Q000187:drug effects; D018384:Oxidative Stress / Q000187:drug effects; D010936:Plant Extracts / Q000494:pharmacology*; D011897:Random Allocation; D051381:Rats; D017208:Rats, Wistar; D013662:Tea / Q000737:chemistry*; D014810:Vitamin E / Q000494:pharmacology*; D015430:Weight Gain
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D013662:Tea; D014810:Vitamin E; D000251:Adenosine Triphosphatases; D007545:Isoproterenol