胎儿肺中化学元素的时序分布特征与营养生理意义

The Dynamic Changing Character of Chemical Elements' Contents in Fetal Lung and Its Physiologically Nutritional Significance

目的 :探讨胎儿肺中化学元素的含量及其时序分布特征和营养生理意义。方法 :分析 4～ 10月龄胎儿肺中 2 1个化学元素的含量及与成人的比较 ,并将各个元素的月均含量和月龄之间进行相关分析、分类。结果 :胎儿肺中化学元素的含量随龄变化可区分为与月龄呈显著正相关、显著负相关和相关不显著 3类。结论 :人体胎儿期肺的重量和化学元素的含量是一非稳态变量 ,元素随龄变化规律为揭示胎儿肺生长发育和元素的关系提供了生物学信息 ,同时为调控胎儿、妊娠———哺乳期妇女、新生儿。

Objective:To probe the dynamic changing character of chemical elements' contents in fetal lung and its physiologically nutritional significance. Methods:To mensurate the 21 chemical elements' contents in lung of fetus age of four to ten months, and comparing the 21 elements' contents of fetus with those of adult, and trying to analyze and assort the relativity between the monthly average of 21 elements' contents with fetus month age. Results:The changing trends of chemical elements' contents of fetus lung are divided into three kinds, which are markedly positive relativity with fetus month-age increasing, markedly negative relativity with fetus month-age increasing and indistinctive relativity with fetus month-age increasing. Conclusion:The weight and chemical elements' contents of fetal lung are unstable in the stage of fetus up-growth. The changing character of chemical elements contents in fetal lung with month age can not only provide biological information for disclosing the relationship between the development of fetal lung with chemical elements, but also provide bases for adjusting and controlling the nutritional balance of fetus-newborn and woman during the period of gestation and lactation.