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96例肿瘤患者外周血总抗氧化能力、SOD 活力均较正常人为低(P<0.01)。提示:癌细胞以及放、化疗过程中产生了超氧自由基(O_2~-),可导致肿瘤患者体内诸如 SOD 等抗氧化物质异常减少。
The total antioxidant capacity and SOD activity in peripheral blood of 96 patients with cancer were lower than those in normal subjects (P<0.01). Tip: Superoxide free radicals (O 2 -) are produced during cancer cells and in the course of radiotherapy and chemotherapy, which can lead to abnormal reduction of antioxidative substances such as SOD in tumor patients.