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目的:通过对300名维吾尔族、汉族学龄前儿童血中7种元素以及体格发育水平进行测量,探讨维吾尔族、汉族儿童微量元素水平与生长发育的关系,对指导儿童平衡膳食,维持正常生长发育提供支持依据。方法:应用BH5100原子吸收光谱仪对300名3~5岁健康儿童血中微量元素铜(Cu)、铁(Fe)、锌(Zn)、铅(Pb)、镉(Cd)及宏量元素钙(Ca)、镁(Mg)进行测定,并对儿童体重、身高、头围、胸围4项体格发育指标进行测量。结果:①乌鲁木齐市维吾尔族、汉族儿童微量元素平均水平均在正常范围内,民族间有统计学差异(P<0.05)。②维吾尔族、汉族儿童生长发育平均水平均达到《中国7岁以下儿童生长发育参照标准》;维吾尔族儿童胸围显著高于汉族儿童(P<0.05),其余体格指标无显著民族差异(P>0.05)。③铜、铁分别与胸围显著正相关(P<0.05)。结论:微量元素及体格发育水平民族间有差异,可能与维吾尔族、汉族遗传因素及不同的饮食习惯、饮食结构有关。微量元素水平与儿童生长发育密切相关。
OBJECTIVE: To investigate the relationship between trace elements levels and growth and development in Uyghur and Han Chinese preschool children by measuring the levels of seven elements and physical development in 300 pre-school children of Uygur and Han nationality, and to guide the children to balance the diet and maintain the normal growth and development Provide support base. Methods: The contents of trace elements Cu, Fe, Zn, Pb, Cd and Ca (superscript 2 +) in healthy children aged 3 ~ 5 years were measured by atomic absorption spectrometry Ca, Mg were measured, and 4 physical development indexes of body weight, height, head circumference and chest circumference of children were measured. Results: ①The average levels of trace elements in Uygur and Han nationality children in Urumqi are within the normal range, with statistical significance (P <0.05). (2) The average growth and development of Uygur and Han children reached the reference standard of growth and development of children under 7 years old in China; the chest width of Uyghur children was significantly higher than that of Han children (P <0.05), and there was no significant difference in other physical indicators (P> 0.05 ). ③ Copper and iron were significantly and positively correlated with chest circumference (P <0.05). Conclusion: The differences of trace elements and physical development among ethnic groups may be related to the genetic factors of Uygur and Han nationality and different dietary habits and dietary patterns. Trace element levels are closely related to children’s growth and development.