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Hepatotoxicity occurs as a result of adverse effects of some xenobiotics on the liver, which is often the target tissue of toxicity for environmental chemicals. Rotenone, used as a natural pesticide, is an environmental poison reported to cause organ toxicity. This study investigated the protective effect of three flavonoids, catechin, quercetin and taxifolin (2,3-Dihydroquercetin) in rotenone-induced hepatotoxicity. Male Wistar rats were administered rotenone for 10 days followed by post treatment with catechin (5, 10 and 20 mg/kg), quercetin (5, 10 and 20 mg/kg) or taxifolin (0.25, 0.5 and 1 mg/kg), respectively, for 3 days. Bioindices of oxidative stress and hepatocellular injury were measured in serum and tissue homogenate of animals. Rotenone intoxication produced liver damage in rats as reflected in alterations to activities/levels of enzymic and non-enzymic oxidative stress markers and enzymes linked with …