弱智儿童与正常儿童微量元素比较分析.pdfVIP

研究论文（ ） Articles 弱智儿童与正常儿童微量元素比较分析 1 2 2 沈光涛 ，刘宇婧 ，王赛锋 1. 中央民族大学生命与环境科学学院，北京100081 2. 中国科学院微生物研究所，北京 100092 摘要 为探讨锌、铁、铜、铅等微量元素（ ）水平与儿童智商（ ）的关系，用原子吸收光谱法测定 名正常儿童和 名弱智儿 TE IQ 100 100 童头发中锌、铅、铜、铁 种元素含量，同时进行血微量元素测定。结果显示，正常儿童头发中 含量显著高于智力发育不全儿童，正 4 Zn 常儿童头发中 含量也明显高于智力发育不全儿童， 含量没有显著差异，而正常儿童头发中 含量则明显低于智力发育不全 Cu Fe Pb 儿童。 结论表明，微量元素缺乏或中毒影响儿童大脑发育和智力水平。 关键词 弱智儿童；智商；微量元素 中图分类号 文献标识码 文章编号 （ ） R179 A 1000-7857 2010 11-0051-03 Comparative Analysis of Trace Elements in Mentally Retarded Children and Normal Children 1 2 2 SHEN Guangtao , LIU Yujing , WANG Saifeng 1. College of Life and Environmental Sciences, Central University for Nationalities, Beijing 100081, China 2. Institute of Microbiology, Chinese Academy of Sciences, Beijing 100092, China Abstract Trace elements are essential for human growth. On the other hand, an excess of some elements can be toxic, leading to disturbances in human growth. Altered trace elements concentration influences the biological growth, leading to changes in the structure of macromolecules, the permeability of cell membranes etc. Mental retardation is one such disease, which can be congenital or acquired. This paper investigates the relationship between the contents of trace elements Zn, Pb, Cu, Fe and the intelligence quotient of the child. By means of atomic absorption spectrometry