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叙利亚难民儿童和青少年的战争暴露和DNA甲基化

Demelza Smeeth^1,2, Simone Ecker³, Olga Chervova³

¹Department of Biological and Experimental Psychology, School of Biological and Behavioural Sciences, Queen Mary University of London, London, United Kingdom.

JAMA psychiatry

|November 20, 2024

概括

难民儿童和青少年的战争暴露与唾液中微妙的DNA甲基化变化有关. 这些发现突出了冲突对年轻人的潜在生物学影响,影响了他们的长期健康.

科学领域:

表观遗传学在表观遗传学中,表观遗传学是指表观遗传学.
儿童和青少年健康儿童和青少年健康
创伤研究创伤研究

背景情况:

战争暴露会对心理健康产生负面影响,可能是通过持久的DNA甲基化变化.
关于战争对儿童和青少年的表观遗传影响的研究有限.

研究的目的:

调查与叙利亚难民儿童和青少年战争暴露相关的唾液DNA甲基化差异.

主要方法:

一群1507名叙利亚难民儿童和青少年在黎巴嫩提供了两波的唾液样本.
战争暴露通过战争事件问卷进行评估.
使用Infinium MethylationEPIC BeadChip分析了DNA甲基化,使用了表观遗传衰老钟.

主要成果:

受战争影响的儿童在唾液DNA中表现出不同的甲基化位点和区域.
与运输和神经传递相关的基因组在不同的甲基化基因中得到了丰富.
战争暴露名义上与表观遗传年龄的降低有关.

结论:

战争暴露与难民儿童和青少年的唾液中微妙但明显的DNA甲基化差异有关.
这些表观遗传变化可能代表一种生物学途径,将战争的逆境与健康结果联系起来.

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相关概念视频

Epigenetic Regulation

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...