摘要
目的了解食管癌高发区不同年龄段正常人群头发中微量元素含量及变化趋势。方法随机抽取林州市２５岁以上正常居民１２０名，按年龄分组，用原子吸收分光光度计（火焰法）和荧光法测定头发中铜、锌、钙、铁、硒等微量元素。结果林州市不同年龄组正常居民头发中锌、钙含量随年龄的增长，含量逐渐降低。相关系数分别是锌：ｒ＝－０．９０４２，钙：ｒ＝－０．９３８１，Ｐ均小于０．０１。铁元素在５５岁以下没有明显变化，５５岁以上显著降低，Ｐ＜０．０１。铜元素的变化是青年组较低，中年组略有升高，到５５岁以后又降低。硒元素除青年组与５５岁以上组有差别外，其余均无差异，Ｐ＞０．０５。结论头发中微量元素锌、钙、铁、硒等元素在５５岁以上的人群中均有明显降低。
Objective To research the content and tendency of the trace elements in the hair of normal people of various ages in area with high risk of esophageal carcinorna.Method One hundred and twenty normal people in Linzhou county were selected in randomly. The atomic absorption method and the fluorescence method were used to measure the trace elements of copper, Zinc, Calcium, Iron and Selenium in their hair.Results The content of zinc and calcium in the hair of these people drops as their ages grow,the relevant quotients are Zinc:r= -0.9042,Calcium:r=-0.9381,P<0.01 The iron element had no obvious change under the age of 55 and drops greatly above the age of 55 (P<0.01). The change of copper element was relatively low in the youth group and relatively higher in the middle- age group and becomes low again in the old age group above the age of 55. There was no obvions change of selenium except in the youth group and the group above the age of 55 (P>0.05).Conclusion The trace elements of zinc,calcium, iron and seleniumin the hair of the people above the age of 55 dropped considerably while the ratio of copper and zinc are not quite steady.
出处
《新乡医学院学报》
CAS
1998年第2期158-159,共2页
Journal of Xinxiang Medical University
基金
河南省卫生厅资助
关键词
微量元素
铜锌比值
硒
食管癌
trace elements
the ratio of copper and zinc
selenium
Carcinoma of esophagus
