PT - JOURNAL ARTICLE AU - Hongwei Yu AU - Chunying Chen AU - Jiangxue Wang AU - Yuxi Gao AU - Guilong Deng AU - Yingbin Liu AU - Shuyou Peng AU - Zhifang Chai TI - Preliminary Study of Oxidative Stress in Human Hepatocellular Carcinoma and Adjacent Normal Liver Tissues DP - 2006 Feb 01 TA - Chinese Journal of Clinical Oncology PG - 11--14 VI - 3 IP - 1 4099 - http://www.cancerbiomed.org/content/3/1/11.short 4100 - http://www.cancerbiomed.org/content/3/1/11.full SO - Cancer Biol Med2006 Feb 01; 3 AB - OBJECTIVE The antioxidative system in human hepatocellular carcinoma was investigated.METHODS The activities of cytosolic catalase (CAT), superoxide dismutase, glutathione peroxidase (GSH-Px), glutathione S-tranferase and levels of reduced glutathione, total protein thiols and malondialdehyde were assayed in 10 cases of hepatocellular carcinoma and adjacent normal liver.RESULTS Hepatoma tissues showed higher activities of CAT, GSH-Px and lower content of total antioxidative capacity compared to adjacent normal liver tissue (P<0.05).CONCLUSION These findings suggest that the antioxidative defense-related enzymes and antioxidants are largely regulated in hepatoma cells. However, the mechanism which is not clear requires further investigation.