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自1965年硒实验性予防克山病试点取得初步效果以来,经过广大地学及医学工作者的努力,已对病区外环境(水、土、粮)及内环境(人的血、尿、头发)中的硒含量进行了大量的分析对比工作,看到了全国克山病流行地区内外环境中的硒含量普遍的低于非病区。尿硒负荷试验看到病区居民口服硒后,保留率大于非病区居民。病区水粮饲养的动物及硒~(75)代谢实验证明病区组动物脏器对Se~(75)的吸收量高于非病区组。病区人群含硒酶——谷胱甘肽过氧化物酶活力也低于非病区人群,处于低硒状态。目前已认为硒的缺乏构成
Since 1965, when selenium experimentally carried out the preliminary results of the experiment on prevention of Keshan disease, after the efforts of the majority of geosciences and medical workers, the external environment (water, soil and food) and the internal environment (human blood, urine, hair ) In the selenium content of a large number of analysis and contrast work, see Keshan disease endemic areas inside and outside the environment of selenium levels generally lower than the non-ward. Urine selenium load test to see ward resident oral selenium, the retention rate is greater than non-ward residents. The wasting animals in the ward and selenium ~ (75) metabolism experiments showed that the uptake of Se ~ (75) in animal organs in the ward was higher than that in the non-ward. Ward selenium enzyme enzyme - glutathione peroxidase activity is also lower than non-ward population, in a low selenium state. Now that the lack of selenium composition