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用高频等离子体发射光谱法对２６例食管癌患者进行血清钼等多种微量元素及镁的测定．并与１３例健康者对照。结果显示，食管癌组钼（ｘ±ＳＤ＝０．６４±０．５５μｍｏｌ／Ｌ）明显低于对照组（ｘ±ＳＤ＝１．１９±０．５５μｍｏｌ／Ｌ），Ｐ＜０．０１；锌（ｘ±ＳＤ＝１５．７１±８．１６μｍｏｌ／Ｌ）亦低于对照组（ｘ±ＳＤ＝２０．９４±６．３１μｍｏｌ／Ｌ），Ｐ＜０．０５；镁（ｘ±ＳＤ＝９２７．４１±２７１．８８μｍｏｌ／Ｌ）低于对照组（ｘ±ＳＤ＝１０５０．８４±９６．７４μｍｏｌ／Ｌ），Ｐ＜０．０５．提示钼、锌及镁的缺少与食管癌的发生有一定关系。
The serum molybdenum and other trace elements and magnesium were measured in 26 patients with esophageal carcinoma by high-frequency plasma emission spectrometry. And compared with 13 healthy people. The results showed that molybdenum in the esophageal cancer group (x±SD=0.64±0.55 μmol/L) was significantly lower than the control group (x±SD=1.19±0.55 μmol/L), P<0.01; zinc (x±SD=15.71±8.16μmol/L) was also lower than the control group (x±SD=20.94±6.31μmol/L), P<0.05; magnesium (x±SD=927. 41±271.88μmol/L) was lower than the control group (x±SD=1050.84±96.74μmol/L), P<0.05. It suggests that the lack of molybdenum, zinc and magnesium is related to the occurrence of esophageal cancer.