表观遗传与青少年灰质成熟和认知发展的关联
Dawn Jensen1,2, Jiayu Chen1,3, Jessica A Turner1,4
1Tri-Institutional Center for Translational Research in Neuroimaging and Data Science (TReNDS), Georgia State University, Georgia Institute of Technology, Emory University, Atlanta, GA, United States.
Frontiers in genetics
|August 2, 2023
概括
青少年大脑基因中的DNA甲基化变化与认知改善和结构性大脑发育有关. 这项研究将表观遗传修饰与这一关键生命阶段关键的神经发育变化联系起来.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
背景情况:
- 青春期是神经发育和认知增强的关键时期.
- 由DNA甲基化 (DNAm) 调节的基因表达影响大脑重组.
- 了解DNAm在青少年大脑发育中的作用至关重要.
研究的目的:
- 为了研究DNA甲基化模式和大脑结构变化之间的关系.
- 探索DNAm与青春期认知表现改善之间的关联.
- 检查参与大脑成熟及其表观遗传调节的特定基因.
主要方法:
- 长度研究~200名参与者 (年龄9-14岁) 用脑成像,认知测试和DNAm数据.
- 对关键脑表达基因中的七个CpG位点的分析.
- 与灰色物质体积变化和三个时间点的认知分数相关的DNAm变化.
主要成果:
- 脱甲基化和DNAm的变化速度与认知得分的改善有显著联系.
- DNAm的变化与执行功能,记忆和处理速度的改善有关.
- 观察到DNAm与灰质体积变化之间的关系反映了大脑成熟.
结论:
- 这项研究为DNA甲基化在青少年神经发育中的作用提供了新的见解.
- 与髓化,受体和连接性相关的基因的DNAm影响大脑结构和认知.
- 表观遗传机制是青春期大脑和认知变化的组成部分.
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