Evaluation of Oxidative Stress in Colorectal Cancer Patients  

作　　者：DONG CHANG FAN WANG YA-SHUANG ZHAO HONG-ZHI PAN 

机构地区：[1]The First Affiliated Hospital of Harbin Medical University, Harbin 150001, Heilongjiang, China [2]School of Public Health, Harb#z Medical University, Harbin 150081, Heilongjiang, China

出　　处：《Biomedical and Environmental Sciences》2008年第4期286-289,共4页生物医学与环境科学（英文版）

基　　金：the grant from the Health Bureau of Heilongjiang Province (No. 2005-126);the Natural Science Foundation of Heilongjiang Province (No. D2007-29)

摘　　要：Objective To evaluate the oxidative stress in patients with colorectal cancer and to investigate the relationship between oxidative stress and colorectal cancer. Methods Seventy-six subjects were divided into two groups （36 colorectal cancer patients as the study group and 40 normal healthy individuals as the control group）. Their protein oxidation, DNA damage, lipid peroxidation and antioxidants, vitamin C, vitamin E, glutathione （GSH）, and antioxidative enzymes in serum were detected. Results The levels of protein carbonyl and advanced oxidation protein products （AOPP） were significantly higher in the study group than in the control group （P〈0.01）. Serum 8-OHdG was significantly increased in the study group compared to the control group （P〈0.01）. However, the mean serum level of MDA and conjugated diene was lower in the study group than in the control group （P〈0.01）. The activity of antioxidative enzymes was significantly decreased in the study group compared to the control group （P〈0.01）. Serum vitamins C and E concentrations were significantly reduced in the study group compared to the control group （P〈0.01）. Conclusion Colorectal cancer is associated with oxidative stress, and assessment of oxidative stress and given antioxidants is important for the treatment and prevention of colorectal cancer.Objective To evaluate the oxidative stress in patients with colorectal cancer and to investigate the relationship between oxidative stress and colorectal cancer. Methods Seventy-six subjects were divided into two groups （36 colorectal cancer patients as the study group and 40 normal healthy individuals as the control group）. Their protein oxidation, DNA damage, lipid peroxidation and antioxidants, vitamin C, vitamin E, glutathione （GSH）, and antioxidative enzymes in serum were detected. Results The levels of protein carbonyl and advanced oxidation protein products （AOPP） were significantly higher in the study group than in the control group （P〈0.01）. Serum 8-OHdG was significantly increased in the study group compared to the control group （P〈0.01）. However, the mean serum level of MDA and conjugated diene was lower in the study group than in the control group （P〈0.01）. The activity of antioxidative enzymes was significantly decreased in the study group compared to the control group （P〈0.01）. Serum vitamins C and E concentrations were significantly reduced in the study group compared to the control group （P〈0.01）. Conclusion Colorectal cancer is associated with oxidative stress, and assessment of oxidative stress and given antioxidants is important for the treatment and prevention of colorectal cancer.

关 键 词：Colorectal cancer Oxidative stress DNA damage Lipid peroxidation Protein oxidation 

分 类 号：R735.3[医药卫生—肿瘤]