The preventive effect of Coriandrum sativum L. (CS) on cardiac damage was evaluated by Isoproterenol (IP) induced cardiotoxicity model in male Wistar rats. Rats were pretreated with methanolic extract of CS seeds at a dose of 100, 200 or 300mg/kg orally for 30days and they were subsequently administered (s.c.) with IP (85mg/kg body weight) for the last two days. IP treated rats showed increased LPO, decreased levels of endogenous antioxidants and ATPases in the cardiac tissue together with increased plasma lipids and markers of cardiac damage. TTC staining showed increased infarct areas while HXE staining showed myofibrillar hypertrophy and disruption. CS (200 and 300mg/kg body weight) pretreatment significantly prevented or resisted all these changes. Our results show that methanolic extract of CS is able to prevent myocardial infarction by inhibiting myofibrillar damage. It is also concluded that, the rich polyphenolic content of CS extract is responsible for preventing oxidative damage by effectively scavenging the IP generated ROS.
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