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在四川西昌克山病区,选病点与非病点采集居民主副食、发、尿进行与硒有拮抗作用的元素Pb、Cd、Hg、As以及曾有报告提出的可能与克山病有关的其他必需元素如Zn、Cu、Mn、Mo、Mg的测定,以估价硒需要量测出值可能受到的影响。结果表明:食物中Pb、Cd、Hg、AS含量无论病点与非病点均低于未经污染的商品粮,以及WHO和我国暂定的容许量标准;尿中Pb、Cd、Hg、As的排出量也在正常范围内。有关的必需元素中,主食Mo与发Mo,病点高于非病点,这与其他报告认为病区Mo低不符合。由于在此病区内各非病点Mo含量仍在正常范围内,同时其它必需元素在病点与非病点的主副食中尽管各有高低,但并无规律可循,且都在《食物成分表》(正常地区)的范围内,说明以上所测定的各元素未曾影响Se最低需要量的测出结果。
In the Xichang Keshan ward of Sichuan Province, the elements Pb, Cd, Hg, As that had antagonistic effects on selenium were collected from the residents’ The determination of other necessary elements such as Zn, Cu, Mn, Mo and Mg to assess the selenium requirement may be affected. The results showed that the contents of Pb, Cd, Hg and AS in food were lower than those of non-contaminated foodstuffs, and the WHO and China’s tentative tolerance standards. The contents of Pb, Cd, Hg, As in urine Excretion is also within the normal range. Among the essential elements, Mo and Mo, the staple foods, were higher than non-disease points, which was inconsistent with the other reports that Mo was low in the wards. Because of the non-disease Mo content in the disease area are still within the normal range, while other essential elements in the disease and non-disease point of the main non-staple food, although the level of each, but there is no law to follow, and are in the “food Component Table ”(normal area), indicating that each element measured above has not affected the minimum Se requirement.