母亲虐待史与DNA甲基化模式相互作用,预测婴儿气质
Kendall C Parks1, Jessica L Buthmann1, Ai Ling Teh2
1Department of Psychology, Stanford University, Stanford, CA, USA.
Child abuse & neglect
|September 20, 2025
概括
母亲的童年虐待与婴儿的气质问题有关. 应激反应基因中的DNA甲基化 (DNAm) 调节了这种关联,这表明表观遗传对婴儿发育的影响.
科学领域:
- 发展心理学 发展心理学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 孕产妇健康 孕产妇健康
背景情况:
- 母亲儿童虐待 (CM) 与婴儿难以表现的气质有关.
- 无论是CM还是婴儿的结果都与与压力相关基因中的DNA甲基化 (DNAm) 相相关.
- 尚不清楚CM,DNAm和婴儿气质之间的相互作用.
研究的目的:
- 调查DNAm是否调解或调节母亲CM和婴儿气质之间的联系.
- 探索表观遗传机制,为母亲的逆境对儿童发展的影响.
主要方法:
- 分析了144个母婴二极管的纵向数据.
- 评估母亲的CM病史,3个月的婴儿气质和带血DNAm.
- 主要成分分析确定了一种甲基化成分,与下丘脑-垂体-上腺 (HPA) 轴基因有关.
主要成果:
- 较高的DNAm水平与母亲的CM和难以适应的婴儿气质之间更强烈的关联.
- 母亲的童年虐待特别放大了这种效应.
- DNAm调节了这种关系,表明了表观遗传的影响.
结论:
- 母亲的CM,特别是虐待,与婴儿气质更困难有关.
- 提高HPA轴基因的DNA甲基化可以缓解这种关联.
- 这表明一种影响婴儿应激反应的表观遗传编程机制,需要进一步调查.
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