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目的为了研究磁场对自由基代谢的影响，测定了经磁场处理后小白鼠血液中的谷胱甘肽过氧化物酶ＧＳＨ—ＰＸ的活性。方法Ｓｗｉｓ小鼠随机分成实验组Ａ、Ｂ及对照组，实验组Ａ、Ｂ小鼠分别用强度为８０ｍＴ和４０ｍＴ的磁场照射，每日３０分钟，１５天后用分光光度法测定小鼠血液中的ＧＳＨ—ＰＸ的活性。结果实验组Ａ小鼠血液中的ＧＳＨ—ＰＸ活性显著高于对照组（Ｐ＜０．０５）；而实验组Ｂ小鼠血液的ＧＳＰ—ＰＸ活性与对照组比较亦有提高，但无显著差异。结论经一定强度、一定时间的磁场处理后的小鼠血液清除自由基能力明显提高。
Objective To study the effect of magnetic field on free radical metabolism, the activity of glutathione peroxidase (GSH-PX) in blood of mice was measured after magnetic field treatment. Methods Swis mice were randomly divided into experimental groups A, B and control group, the experimental group A, B mice were exposed to a magnetic field intensity of 80mT and 40mT, 30 minutes daily, 15 days later measured by spectrophotometry in mice blood Of GSH-PX activity. Results The blood GSH-PX activity in experimental group A was significantly higher than that in control group (P <0.05), while the GSP-PX activity in experimental group B was also increased compared with control group, but there was no significant difference . Conclusion The ability of the blood to scavenge free radicals after the magnetic field treatment for a certain period of time has been obviously improved.