Effect of tea leaf extract on 8-OHdG expression in liver hepatocytes. A shows negative 8-OHdG expression in hepatocytes. B shows severe 8-OHdG expression in hepatocytes (arrowhead) of fish after exposure to CMN. C shows moderate 8-OHdG expression in hepatocytes of 50 mg of TLE on CMN exposure. D shows mild 8-OHdG expression in hepatocytes of 100 mg of TLE on CMN exposure H and E, Bar: 50 µm.