Kolaviron, a biflavonoid fraction from Garcinia kola, protects against isoproterenol-induced injury by mitigating cardiac dysfunction and oxidative stress in rats

Abstract

AbstractThe aim of this study was to evaluate the cardioprotective effects of kolaviron (KV), a biflavonoid fromForty-two male Wistar rats (180–200 g) were randomly divided into seven groups of six rats each. Group 1 served as control; group 2 received ISO (85 mg/kg subcutaneously); groups 3, 4 and 5 received ISO and KV1 [100 mg/kg orally (p.o.)], KV2 (200 mg/kg, p.o.) and QUE (25 mg/kg, p.o.), respectively; and groups 6 and 7 received QUE and KV2, respectively.Administration of ISO caused significant (p<0.05) elevation of serum creatine phosphokinase, lactate dehydrogenase, alkaline phosphatase, alanine aminotransferase and aspartate aminotransferase by 2.2-, 1.9-, 2.1-, 1.9- and 1.7-fold, respectively, relative to controls, with a concomitant decrease in cardiac activities of these enzymes. Administration of ISO led to significant decrease (p<0.05) in the levels of cardiac superoxide dismutase, catalase, glutathioneKV protects against ISO-induced cardiotoxicity in vivo, suggesting its usefulness as a possible chemoprophylactic agent against cardiotoxic drugs.