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目的了解儿童血清中微量元素的含量的变化,为儿童微量元素的防治提供科学的依据。方法分别于2009年和2015年对0~12岁儿童按发育阶段分为4组,婴儿组、幼儿组、学龄前组、学龄组,取静脉血2m L肝素抗凝,采用北京博晖的BH5100型原子吸收光谱仪检测全血Cu、Zn、Ca、Mg和Fe含量,BH2100型原子吸收光谱仪检测Pb和Cd含量。并比较和分析两次检测结果的差异。结果各年龄组儿童微量元素含量均得到不同程度的上升,营养元素中Zn的增长率最高,其次分别Ca、Cu、Fe和Mg,同时营养元素的缺乏率也呈现下降趋势,Pb和Cd这两种毒性元素的含量也在增长,且七种元素以Cd的增长率最高。结论随着生活水平的提高,十堰市儿童营养健康状况得到了改善,同时毒性元素的上升提示危害风险的提高,应当引起警觉和防范。儿童应定期监测微量元素,合理补充营养元素,并预防Pb和Cd毒性元素的损害。
Objective To understand the changes of serum trace elements in children and provide a scientific basis for the prevention and treatment of trace elements in children. Methods According to the developmental stages of children aged 0-12 years in 2009 and 2015 respectively, the methods were divided into 4 groups: infant group, preschool group, preschool group, school age group, anticoagulation with venous blood of 2mL heparin, Zn, Ca, Mg and Fe in the whole blood by atomic absorption spectrometry and Pb and Cd contents by BH2100 atomic absorption spectrometry. And compare and analyze the difference between the two test results. Results The contents of trace elements in children of all age groups all increased to some extent. The growth rate of Zn in nutrient elements was the highest, followed by Ca, Cu, Fe and Mg respectively, while the lack of nutrients also showed a decreasing trend. Pb and Cd were the two The content of toxic elements is also increasing, and the seven elements have the highest growth rate of Cd. Conclusion With the improvement of living standard, the nutrition and health status of children in Shiyan has been improved. At the same time, the increase of toxic elements suggests that the risk of harm should be raised and raised. Children should regularly monitor the trace elements, the rational supply of nutrients, and prevention of Pb and Cd toxicity of the damage.