标题：Attenuation by Oren-gedoku-to Extract (TJ-15) of Disruption of Hepatic Reactive Oxygen Species Metabolism with Progression of Carbon Tetrachloride-Induced Acute Liver Injury in Rats
期刊名称：Journal of Clinical Biochemistry and Nutrition
印刷版ISSN：0912-0009
电子版ISSN：1880-5086
出版年度：2006
卷号：39
期号：3
页码：153-161
DOI：10.3164/jcbn.39.153
出版社：The Society for Free Radical Research Japan
摘要：We attempted to elucidate how Oren-gedoku-to (Huanglian-Jie-Du-Tang) extract (TJ-15), a Chinese herbal medicine, attenuates the disruption of hepatic reactive oxygen species metabolism with the progression of carbon tetrachloride (CCl4)-induced acute liver injury in rats. TJ-15 (100, 250 or 500 mg/kg body weight) was orally administered to rats injected with CCl4 (1 ml/kg, i.p.) at 6 h after the toxicant treatment. Post-administered TJ-15 reduced progressive liver injury in CCl4-treated rats at 24 h after the toxicant treatment dose-dependently. The liver of rats treated with CCl4 alone showed increases in the concentration of thiobarbituric acid-reactive substances, an index of lipid peroxidation, and xanthine oxidase activity and decreases in reduced glutathione and ascorbic acid concentrations and superoxide dismutase, catalase, and glutathione reductase activities at 24 h after the toxicant treatment. The liver of CCl4-treated rats showed no change in Se-glutathione peroxidase activity and an increase in hepatic glucose-6-phosphate dehydrogenase activity at 24 h after the toxicant treatment. Post-administered TJ-15 attenuated the increases in hepatic thiobarbituric acid-reactive substances and xanthine oxidase activity and the decreases in hepatic reduced glutathione and ascorbic acid concentrations and superoxide dismutase, catalase, and glutathione reductase activities dose-dependently but did not affect the hepatic Se-glutathione peroxidase activity and the increased hepatic glucose-6-phosphate dehydrogenase activity. These results indicate that orally administered TJ-15 attenuates the disruption of hepatic reactive oxygen species metabolism with the progression of CCl4-induced acute liver injury in rats through its direct and indirect antioxidant actions. The results also suggest that this attenuating effect of TJ-15 could contribute to its preventive effect on the progression of CCl4-induced acute liver injury.
关键词：Oren-gedoku-to (Huanglian-Jie-Du-Tang) extract (TJ-15);carbon tetrachloride;liver injury (rat);reactive oxygen species metabolism
