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应用低能量氦－氖激光血管内照射循环血液（ＩｎｔｒａｖａｓｃｕｌａｒＬａｓｅｒＩｒｒａｄｉａｔｉｏｎｏｆＢｌｏｏｄ，ＩＬＩＢ）治疗３４例脑梗塞病人，并与３０例非ＩＬＩＢ治疗的脑梗塞病人作对照。结果有效率达９７％，明显高于对照组，ＩＬＩＢ治疗后能降低血粘度，其中红细胞压积和纤维蛋白原水平明显降低（Ｐ＜０．０１）；能够对抗氧自由基，３种超氧化物歧化酶（ＳｕｐｅｒｏｘｉｄｅＤｉｓｍｕｔａｓｅ，ＳＯＤ）：含铁超氧化物歧化酶（Ｆｅｒｒｕｍ－ｃｏｎｔａｉｎｉｎｇＳＯＤ，ＦｅＳＯＤ）、含锰超氧化物歧化酶（Ｍａｎｇｏｍｅｓｅ－ｃｏｎｔａｉｎｉｎｇＳＯＤ，ＭｎＳＯＤ）、含铜锌超氧化物歧化酶（Ｃｏｐｐｅｒ－ａｎｄＺｉｎｃ－ｃｏｎｔａｉｎｉｎｇＳＯＤ，ＣｕＺｎＳＯＤ）水平均较治疗前明显升高（Ｐ＜０．０１），其中ＦｅＳＯＤ及ＣｕＺｎＳＯＤ高于对照组（Ｐ＜０．０５）；还能降低具有神经毒性的血浆中分子物质（ＭｉｄｄｌｅＭｏｌｅｃｕｌａｒＳｕｂｓｔａｎｃｅｓ，ＭＭＳ）水平（Ｐ＜０．０１），且低于对照组。表明ＩＬＩＢ对防治脑梗塞有较好的临床使用价值。
34 patients with cerebral infarction were treated with low energy He - Ne laser intravascular irradiation (ILIB) and compared with 30 non - ILIB treated patients with cerebral infarction. The results showed that the effective rate was 97%, significantly higher than that of the control group. ILIB treatment could reduce the blood viscosity, the hematocrit and fibrinogen levels were significantly decreased (P <0.01) Superoxide dismutase (SOD): Ferrum-containing SOD (FeSOD), Manganese-containing SOD (MnSOD), Copper- (P <0.01). The levels of FeSOD and CuZnSOD were higher than those of the control group (P <0.05), and the levels of neurotoxin-containing plasma molecular substances Middle Molecular Substances, MMS) level (P 0.01), and lower than the control group. That ILIB has a better clinical value of the prevention and treatment of cerebral infarction.