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用红细胞免疫吸附法测定４０例慢性阻塞性肺病（ＣＯＰＤ）患者的红细胞Ｃ３ｂ受体和免疫复合物花环率，用黄嘌呤氧化法测定其红细胞内的超氧化物歧化酶（ＳＯＤ）的含量，并与４０例正常对照组进行比较。结果表明，ＣＯＰＤ患者红细胞Ｃ３ｂ受体花环率显著低于正常对照组，且伴呼衰组显著低于不伴呼衰组；红细胞免疫复合物花环率显著高于正常对照组，伴呼衰组与不伴呼衰组之间无显著差异；ＣＯＰＤ患者红细胞内ＳＯＤ含量显著低于正常对照组，伴呼衰组显著低于不伴呼衰组。提示ＣＯＰＤ患者红细胞免疫功能低下，降低程度与病情轻重有关。
The erythrocyte C3b receptor and immune complex rosette rate in 40 patients with chronic obstructive pulmonary disease (COPD) were determined by erythrocyte immunosorbent assay. The content of superoxide dismutase (SOD) in erythrocytes was determined by xanthine oxidation Compared with 40 normal control group. The results showed that the rosette rate of erythrocyte C3b receptor in COPD patients was significantly lower than that in normal control group, and the group with respiratory failure was significantly lower than those without respiratory failure group. The rosette rate of erythrocyte immune complex was significantly higher than that in normal control group, There was no significant difference between the two groups without COPD. The level of SOD in erythrocytes in COPD patients was significantly lower than that in control group, and the group with respiratory failure was significantly lower than those without respiratory failure group. Prompt COPD patients with erythrocyte immune dysfunction, reduced severity and severity of the disease.