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近年来对微量元素硒的研究受到世界的关注。人们逐渐认识到微量元素硒对生命过程有重要作用。人体内血硒的含量长期低于0.1ppm 时可能引起肝坏死、心肌损害、癌症、关节炎等疾病。从流行病学研究,人们发现局部地区农作物和人血中的含硒量与某些肿瘤的发生率呈负相关关系。我研究所于树玉等发现肝癌死亡率与血硒水
In recent years, the research on trace element selenium has drawn worldwide attention. People have come to realize that trace element selenium plays an important role in the life process. Long-term human selenium content of less than 0.1ppm may cause liver necrosis, myocardial damage, cancer, arthritis and other diseases. From epidemiological studies, it was found that the selenium content in crops and human blood in some areas was negatively correlated with the incidence of some tumors. My research institute Yu Shu found liver cancer mortality and blood selenium