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作 者:刘晖[1] 李珏声[1] 汪之顼[1] 林利平[1] 丛琳[1] 邢茜宜[1]
机构地区:[1]青岛医学院营养学系
出 处:《营养学报》1998年第1期16-20,共5页Acta Nutrimenta Sinica
基 金:与美国Texas大学医学院合作项目;经费由国际铅锌研究组织(ILZRO)资助
摘 要:方法:试验分为三组:单纯补锌组(Z),同时补锌+微量营养素组(Z+M),补微量营养素组(M)。结果:试验前发锌平均含量为2.28±0.74μmol/g,低于正常值下限共24人,占受试总人数的22.22%。发锌含量与智商呈显著正相关(r=0.229,P<0.05,n=108)。补充试验后三个组发锌变化无显著性差别。Z+M组和M组智商,认知功能的改善好于Z组,Z+M组和M组的差别无统计学意义。膝高的增长值Z+M组高于M组和Z组,M组高于Z组。结论:受试儿童中锌缺乏并不占主要地位,其他微量营养素的缺乏更应受到重视。同时补充锌和微量营养素可以改善儿童的智能发育,并能促进体格发育。Before and after zinc and micronutrients supplement the changes of intelligence and growth in 108 healthy children aged 7-8yrs were studied.The children were randomly divided into 3 groups:zinc supplement(Z),zinc+micronutrients supplement(Z+M),and micro-nutrients supplement(M).Before the supplements,hair Zn content of children was 2.28±0.74μmol/g and 22.22% of the hair Zn content was lower than 1.69μmol/g. There was a positive correlation between intelligence quotient(IQ) and hair Zn content.After supplement,there were no significant changes among the 3 groups on hair Zn content.The changes of IQ and cognition in Z+M group and M group were significantly higher than Z group,and there was no significant difference between Z+M group and M group.The change of knee height in Z+M group was markedly higher than M group and Z group,while M group was significantly higher than Z group. The results demonstrated that zinc deficiency might not be the main factor that affects the intelligence and growth of children,perhaps other micronutrients deficiency should be paid more attention.The simultaneous supplement of zinc and micronutrients may promote the intelligence and growth of children.
分 类 号:R151.2[医药卫生—营养与食品卫生学] R151.1[医药卫生—公共卫生与预防医学]
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