补锌对孕妇锌营养状况及其胎儿生长发育的影响

The Effects of the Zinc Supplementation on Nutritional Status of Pregnant Women and the Development of Their Fetus.

【目的】 探讨补锌对孕妇锌营养状况及其胎儿生长发育的影响。 【方法】 48例孕妇于孕中期每天补充锌元素 2 0mg ,测定孕中、晚期血清锌浓度、新生儿出生时的血清锌浓度及新生儿生长发育指标 ,并与 53例不补锌的孕妇及其新生儿作对照。 【结果】 补锌组孕妇孕晚期血清锌浓度明显高于对照组 (P <0 .0 1 ) ,两组中孕中期血清锌浓度 <1 0 .71 μmol/L者 ,补锌组孕妇的新生儿出生体重明显高于非补锌组孕妇的新生儿 (P <0 .0 5)。 【结论】 补锌可提高孕妇孕中、晚期的血清锌浓度 ,对于孕中期血清锌浓度 <1 0 .71 μmol/L者 ,补锌可能有助于增加其新生儿的出生体重。

To find out the effects of the zinc supplementation on nutritional status of pregnant women and the development of their fetus. Forty eight pregnant women were provided 20mg zinc daily from the second trimesters,the serum zinc concentration of the mothers were measured in the second and third trimesters.The serum zinc concentration and the development parameters of the newborns were also measured.At thesame time,compare those measurements with fifty three other pregnant women which did not take any zinc supplementation,and their newborns. The serum zinc concentrations provided thepregnant women with more zinc than the control women in the final pregnancy stage( P <0.01).In those mothers who took the zinc supplementation,their newbornsweighed significantly more than those newborns whose mothers did not take the zinc supplements(The serum zinc level in both were<10.71μmol/L)( P <0.05). [Conclusion] Zinc supplements could raise the serum zinc concentration of the pregnant women in their second and third trimesters.Zinc supplementation could also help to increase the newborn weight for those who had serum zinc level <10.71μmol/L.