JCEM:孕妇重金属暴露、甲状腺激素与出生结局

2019-04-18 xing.T 网络

由此可见,妊娠早期孕妇暴露于V、As和Pb与孕妇FT3或FT3/FT4比率下降有关,这可能导致婴儿出生体重减轻。中介分析表明,孕妇甲状腺激素可能是尿重金属与出生体重之间关联的中介因素。

妊娠期间母体甲状腺激素在胎儿发育中起着关键作用。然而,孕妇重金属暴露是否影响其甲状腺激素以及对胎儿生长的影响仍不清楚。近日,内分泌和代谢性疾病领域权威杂志Journal of Clinical Endocrinology & Metabolism上发表了一篇研究文章,研究人员旨在探讨重金属暴露对孕妇甲状腺激素的影响以及甲状腺激素对出生结局的潜在调节作用。

这项在中国进行的队列研究测量了675名孕妇血液样本中的重金属浓度和675名孕妇血液中的甲状腺激素。研究人员应用多变量线性回归来探讨孕妇尿重金属水平与孕妇甲状腺激素和出生结局的关系,并进行中介分析以评估甲状腺激素在这些关联中的调节作用。 

孕妇尿钒(V)与游离三碘甲腺原氨酸(FT3)和FT3/游离甲状腺素(FT4)比值水平显示出显著的负相关。尿砷(As)和铅(Pb)与FT3呈反比关系。研究人员还观察到孕妇FT3和FT3/FT4比率与出生体重呈显著正相关。中介分析表明,V、As和Pb水平与出生大小之间相关性的5.33%-30.57%可能是由孕妇FT3或FT3/FT4比所介导。

由此可见,妊娠早期孕妇暴露于V、As和Pb与孕妇FT3或FT3/FT4比率下降有关,这可能导致婴儿出生体重减轻。中介分析表明,孕妇甲状腺激素可能是尿重金属与出生体重之间关联的中介因素。 

原始出处:

Xiaojie Sun,et al.Maternal heavy metal exposure, thyroid hormones, and birth outcomes: a prospective cohort study.J Clin Endocrinol Metab. 2019.https://doi.org/10.1210/jc.2018-02492

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    2020-04-02 saikp
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    2019-06-07 achengzhao
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    2019-09-16 smallant2015
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    2019-04-18 1ddf0692m34(暂无匿称)

    学习了,谢谢分享

    0

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