Association of selenium, zinc and copper concentrations during pregnancy with birth weight: A systematic review and meta-analysis

被引:19
作者
Atazadegan, Mohammad Amin [1 ]
Heidari-Beni, Motahar [2 ]
Riahi, Roya [3 ]
Kelishadi, Roya [3 ]
机构
[1] Isfahan Univ Med Sci, Sch Nutr & Food Sci, Dept Clin Nutr, Esfahan, Iran
[2] Isfahan Univ Med Sci, Child Growth & Dev Res Ctr, Res Inst Primordial Prevent Noncommunicable Dis, Dept Nutr, Esfahan, Iran
[3] Isfahan Univ Med Sci, Child Growth & Dev Res Ctr, Res Inst Primordial Prevent Noncommunicable Dis, Dept Pediat, Esfahan, Iran
关键词
Trace element; Zinc; Selenium; Copper; Birth weight; Pregnancy; GLUTATHIONE-PEROXIDASE ACTIVITY; UMBILICAL-CORD BLOOD; OXIDATIVE STRESS; GESTATIONAL-AGE; PLASMA ZINC; HEALTHY MOTHERS; MATERNAL BLOOD; PLACENTAL ZINC; GROWTH; CADMIUM;
D O I
10.1016/j.jtemb.2021.126903
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Background: Normal fetal growth is associated with maternal nutrition. Trace elements play important roles in fetus growth. This review aims to provide a summary of the literature evaluating the relation between selenium, zinc and copper levels during pregnancy with birth weight. Method: A systematic literature search was conducted in Medline database (PubMed), Scopus, Web of science and Google scholar up to September 2020. Fifty observational studies were included in the final analyses. The desired pooled effect size was considered as standardized mean differences with 95 % CI or correlation. Cochran's Q statistic was used to test the heterogeneity between the included studies (I-2). Result: A significant differences were found between pooled standardized mean differences (SMD) of umbilical cord blood copper levels in small-for-gestational age birth weight (SGA) and appropriate-for-gestational age birth weight (AGA) (SMD: 0.34 mu g/L, 95 % CI: 0.13 to 0.56). There was a significant pooled correlation between umbilical cord blood selenium concentrations and birth weight (r: 0.08, 95 % CI: 0.01 to 0.16). A significant pooled correlation was found between umbilical cord blood zinc concentrations and birth weight (r: 0.09, 95 % CI: 0.04 to 0.15), with significant heterogeneity (I-2 % = 0.63). There was significant positive association between maternal blood zinc concentrations and birth weight. Conclusion: Findings showed the association of trace elements including selenium, zinc and copper during pregnancy with birth weight. There was significant correlation between umbilical cord and maternal blood selenium and zinc levels with birth weight. The umbilical cord blood copper levels in SGA birth weight was higher than copper levels in AGA birth weight.
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页数:14
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