Determination of lipid peroxide and superoxide dismutase in blood and tissueof patients with gastrointestinal cancer

• Published in: 世界胃肠病学杂志(英文版) 2000, Vol.6 (3), p.56
• Main Authors: Tian Xing Zhou, Jian Sheng Li, Lu Wei Xing, Shu Heng You
• Format: Article
• Language: English
• ISSN: 1007-9327

AIM To study the relationship between the lipid peroxide (LPO) and superoxide dismutase (SOD) and thepathogenesis of gastrointestinal cancers.METHODS We investigated the SOD activity and LPO levels in blood and mucosa of patients withesophageal (EC), gastric (GC) and colorectal cancer (CC), gastric ulcer (GU) and compared with normalesophagus (NE), stomach (NS) and colon (NC). respectively, 287 patients who underwent endoscopy werestudied. SOD activity of the tissue and blood was determined using SUN's adrenaline auto oxidation method.LPO levels were determined according to YU's method.RESULTS The SOD activity and LPO level in blood and mucosa are shown in the Table 1 (x±Sx). Table 1 SOD and LPO in blood and tissues of patients with gastrointestinal cancers SOD(U／mg protein) LPO(U／mg) Groups n Tissue blood Tissue Blood Normal stomach Gastric ulcer Gastric cancer Normal esophagus Esophageal cancer Normal colon Colon cancer 60 42 43 32 52 28 30 1.90±0.18 0.64±0.40a 0.37±0.24a 1.17±0.70 0.39±0.30a 0.81±0.36 0.31±0.17b 33.70±1.73 25.50±0.67b 27.86±1.02b 30.80±3.78 28.23±10.63 20.97±4.77 19.35±7.32 0.01±0.004 0.05±0.010b 0.06±0.021b 0.014±0.005 0.061±0.033b 0.012±0.003 0.069±0.015b 0.83±0.01 0.11±0.02 0.12±0.03 0.08±0.02 0.11±0.02 0.08±0.03 0.11±0.02 aP