title: Cardio protective effect of vitamin A against isoproterenol-induced myocardial infarction.
abstract: Vitamin A is beneficial in counteracting free radical damage, therefore the present study is designed to investigate the effect of vitamin A against isoproterenol-induced myocardial infarction in rats. Male Wistar rats were divided into three groups, namely a normal control group, an isoproterenol group (150 mg/kg, s.c.), and a vitamin A treatment (4,500 IU/kg/d, orally) group. Vitamin A-treated rats demonstrated significant reduction in ST-segment (p<0.001) and infarct sizes (p<0.05) when compared with the isoproterenol group of rats, suggesting that vitamin A markedly attenuated myocardial injury. Vitamin A treatment resulted in a significant decrease in the serum level of troponin I (p<0.001), creatinine kinase-MB (p<0.01), creatine kinase (p<0.05), lactate dehydrogenase (p<0.05), aspartate aminotransferase (p<0.01) and alanine aminotransferase (p<0.01). Vitamin A treatment resulted in a significant decrease in malondialdehyde (p<0.001), and significant increases were observed in reduced glutathione (p<0.01), superoxide dismutase (p<0.05) and catalase (p<0.001). Vitamin A treatment resulted in a significantly increased level of Na(+)-K(+) ATPase (p<0.05) and Mg(2+)-ATPase (p<0.01) and a significant reduction of Ca(2+) ATPase (p<0.01). Vitamin A treatment also demonstrated a significantly decreased level of C-reactive protein (p<0.05) and myeloperoxidase activity (p<0.01). In conclusion, vitamin A attenuated the myocardial infarction and prevention was shown via membrane stabilization, reduction in oxidative stress, and prevention of neutrophil infiltration.
authors: Laboratory of Pharmacology, Babaria Institute of Pharmacy, BITs edu Campus, Gujarat Technological University, Gujarat, India.
authors: Haresh
authors: H
authors: Pipaliya
authors: Jitendra
authors: J
authors: Vaghasiya
mesh_terms: D000410:Alanine Transaminase / Q000097:blood; D000818:Animals; D001219:Aspartate Aminotransferases / Q000097:blood; D002374:Catalase / Q000097:blood; D003402:Creatine Kinase / Q000097:blood; D005978:Glutathione / Q000097:blood; D006321:Heart / Q000187:drug effects; D007545:Isoproterenol / Q000009:adverse effects*; D007770:L-Lactate Dehydrogenase / Q000097:blood; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D009203:Myocardial Infarction / Q000139:chemically induced / Q000517:prevention & control*; D020556:Neutrophil Infiltration / Q000187:drug effects; D018384:Oxidative Stress / Q000187:drug effects; D051381:Rats; D017208:Rats, Wistar; D000254:Sodium-Potassium-Exchanging ATPase / Q000097:blood; D013482:Superoxide Dismutase / Q000097:blood; D019210:Troponin I / Q000097:blood; D014801:Vitamin A / Q000097:blood / Q000494:pharmacology*
chemical_list: D019210:Troponin I; D014801:Vitamin A; D008315:Malondialdehyde; D007770:L-Lactate Dehydrogenase; D002374:Catalase; D013482:Superoxide Dismutase; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D003402:Creatine Kinase; D000254:Sodium-Potassium-Exchanging ATPase; D005978:Glutathione; D007545:Isoproterenol