学龄前儿童末稍血中5种营养素水平分析

目的:检测学龄前儿童末稍血中钙、铁、锌、镁、铜元素的水平,为预防疾病提供科学依据。方法:采用MP-2型溶出分析法检测。结果:各种元素构成比正常;<2岁组、2～5岁组、>5岁组儿童钙、铁、锌、铜构成比比较差异无统计学意义(P>0.05);镁元素在3个年龄组儿童构成比比较差异有统计学意义,>5岁组与≤5岁组比较差异有统计学意义,镁元素缺乏率高。结论:营养素钙、铁、锌、铜在学龄前儿童体内的分布合理;镁元素的缺乏在学龄前儿童中占有一定的比例,机体可存在长期缺镁而无低镁血症现象,建议将营养素的检测纳入学龄前儿童保健常规检查项目。

Analysis on trace elements levels in peripheral blood of preschool children

Objective:To detect the levels of five trace elements in peripheral blood of preschool children,provide a scientific basis for preventing diseases.Methods:MP-2 stripping analysis was used in the study.Results:The proportions of five trace elements were normal,there was no significant difference in the levels of calcium,iron,zinc and copper between different age groups(P>0.05),but there was significant difference in the level of magnesium.The rate of magnesium deficiency was high.Conclusion:The distributions of calcium,iron,zinc and copper are reasonable in peripheral blood of preschool children;but a certain number of preschool children have low magnesium level,which may lead to a long-term magnesium deficiency yet no hypomagnesemia,therefore,the detection of nutrient elements should also be included in the normal healthcare check-up of preschool children.