RT Journal Article SR Electronic T1 Preliminary Study of Oxidative Stress in Human Hepatocellular Carcinoma and Adjacent Normal Liver Tissues JF Chinese Journal of Clinical Oncology JO Cancer Biol Med FD China Anti-Cancer Association SP 11 OP 14 VO 3 IS 1 A1 Hongwei Yu A1 Chunying Chen A1 Jiangxue Wang A1 Yuxi Gao A1 Guilong Deng A1 Yingbin Liu A1 Shuyou Peng A1 Zhifang Chai YR 2006 UL http://www.cancerbiomed.org/content/3/1/11.abstract 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.