怀孕和后代期间的母体甲状腺功能 早期成年期的白物质微观结构:潜在的出生队列研究
Lassi Björnholm1,2,3, Olavi Orell1, Martta Kerkelä1
1Research Unit of Clinical Medicine, Department of Psychiatry, University of Oulu, Oulu, Finland.
概括
怀孕早期母亲的甲状腺激素水平与成年男性的白质完整性有关. 较高的母体自由甲状腺素 (fT4) 与儿子的更好的脑白质结构相关.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 发展生物学 发展生物学
背景情况:
- 胎儿的发育依赖于母亲的甲状腺激素,直到怀孕中期.
- 怀孕期间母体甲状腺功能不足与后代的神经发育问题有关.
- 孕产妇的甲状腺激素在胎儿大脑发育中起着至关重要的作用,特别是白质的成熟.
研究的目的:
- 研究怀孕早期母亲甲状腺功能与早期成年后代白质完整性之间的关联.
- 为了确定母亲的自由甲状腺素 (fT4) 和甲状腺素 (TSH) 水平是否能预测儿童的长期大脑结构.
- 探索母亲甲状腺功能对后代神经发育的性别特异性影响.
主要方法:
- 利用了292对母婴对的数据,测量了孕早期母亲的FT4和TSH.
- 通过多式成像测量评估后代大脑白质完整性:分数异构性 (FA),平均扩散性 (MD) 和磁化转移比率 (MTR).
- 采用线性混合效应模型进行全局分析和线性模型进行通道分析,按性别分层.
主要成果:
- 在男性 (n=114; β=0.154; p=0.006) 的母体fT4水平和后代全球FA之间发现了显著的积极关联.
- 这种关联是由男性后代的特定白质道,包括投射纤维和小,驱动的.
- 在女性后代中没有观察到任何显著的关联,这表明性别特异性影响.
结论:
- 在怀孕早期,母亲的甲状腺功能与成年男性后代的白质微观结构有关.
- 母亲的fT4水平可能会以性别特定的方式影响轴突发育和长期白质完整性.
- 这些发现突出了母亲甲状腺激素在神经发育轨迹中的关键作用.
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