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本文检测了３８例自身免疫病患者红细胞超氧化物歧化酶活性（Ｅｒｙ－ＳＯＤＡ），全血谷脱甘肽过氧化物醇（ＧＳＨ－Ｐｘ）活性及血浆丙二醛（ＭＤＡ）含量。结果表明；与正常对照组比较，自身免疫病组Ｅｒｙ－ＳＯＤＡ显著下降，ＧＳＨ－Ｐｘ活性和ＭＤＡ含量明显升高。血瘀证组与非血瘀证组比较，ＧＳＨ－Ｐｘ活性升高具有显著意义，（Ｐ＜０．０１），而Ｅｒｙ－ＳＯＤＡ降低和ＭＤＡ升高经统计学处理无显著意义（Ｐ＞０．０５）。提示自身免疫病的发生、发展与自由基损伤有密切关系，并且血瘀证患者自由基损伤程度更加严重。
Ery-SODA, GSH-Px and plasma malondialdehyde (MDA) levels were measured in 38 patients with autoimmune diseases. The results showed that Ery-SODA and GSH-Px activity and MDA content in autoimmune disease group were significantly lower than those in normal control group. Compared with non-blood stasis syndrome group, the GSH-Px activity increased significantly (P <0.01), while there was no significant difference between ERO-SODA and MDA .05). Prompted the occurrence of autoimmune diseases, development and free radical damage are closely related, and blood stasis syndrome patients with more serious damage to free radicals.