产前压力和妊娠表观遗传年龄:根据一项大型前性多队列研究,没有证据表明存在关联
Chris Murgatroyd1, Kristina Salontaji, Dinka Smajlagic
1Manchester Met University.
Research square
|July 16, 2024
概括
产前应激暴露没有显著影响出生时表观遗传妊娠年龄. 这项研究发现,在多个大型队列中,怀孕期间母亲的压力与新生儿的表观遗传衰老标志物之间没有联系.
科学领域:
- 发展生物学 发展生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 围产期健康 围产期健康
背景情况:
- 产前心理压力可能会对后代的发育和健康产生负面影响.
- 表观遗传妊娠年龄是生理发育的生物标志物,可以通过带血DNA甲基化来测量.
- 了解产前压力和表观遗传衰老之间的联系对于早期生命健康干预至关重要.
研究的目的:
- 调查产前母亲压力与出生时表观遗传妊娠年龄之间的关联.
- 为了确定产前压力的累积或特定领域是否与表观遗传年龄加速或减速相关.
- 用三大纵向队列的元分析来分析这种关系.
主要方法:
- 利用胎儿带血液中的DNA甲基化数据,跨越三个纵向队列 (R世代,ALSPAC,MoBa).
- 使用三个已确定的时钟 (博林,EPIC重叠,骑士) 计算表观遗传妊娠年龄.
- 进行了产前压力测量和表观遗传年龄加速的聚合元分析 (n=3,928),并根据压力领域和性别对子组进行了分析.
主要成果:
- 在整体产前压力暴露和表观遗传妊娠年龄加速或减速之间没有发现显著的关联.
- 产前压力的特定领域 (生活事件,社会经济因素,父母心理病理,家庭冲突) 也显示没有显著的关联.
- 根据婴儿性别进行分层分析,没有发现产前压力和表观遗传年龄标志物之间的任何显著联系.
结论:
- 这项研究提供了有限的证据,表明产前心理社会压力与一般儿科人口出生时表观遗传年龄的变化有关.
- 研究结果表明,出生时表观遗传衰老可能对典型的产前心理社会压力水平具有强大影响.
- 进一步的研究可以探索其他生物学途径或影响胎儿发育的特定压力环境.
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