一项大型表观基因组范围的关联研究确定了多个与退伍军人的自杀思想和行为相关的多个新的差异甲基化CpG位点
Nathan A Kimbrel1,2,3,4, Melanie E Garrett5, Mariah K Evans1,4
1Durham Veterans Affairs (VA) Health Care System, Durham, NC, United States.
Frontiers in psychiatry
|July 3, 2023
概括
美国退伍军人的表观遗传变化与自杀思想和行为 (STB) 有关. 像SLC4A2,CDK5,PDE3A和RARRES3这样的基因中的DNA甲基化模式可能会影响STB风险.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 遗传学 是一个
- 精神病学是一个精神病学.
背景情况:
- 自杀死亡率正在上升,特别是在退伍军人中.
- 自杀思想和行为 (STB) 的表观遗传基础尚未得到充分理解.
研究的目的:
- 调查美国退伍军人性传染病的表观遗传基础.
- 识别与STB相关的DNA甲基化模式.
主要方法:
- 进行了DNA甲基化 (DNAm) 的全表观基因组关联研究 (EWAS).
- 分析了来自2,712名美国退伍军人的外周血液样本.
- 利用大脑皮层样本的公开数据集进行验证.
主要成果:
- 确定了与自杀企图相关的三个显著的DNAm探针 (FDR q值<0.05).
- 在SLC4A2和CDK5附近的一个探针 (cg13301722) 在自杀死者的大脑皮质中被差异化甲基化.
- 与吸烟,饮酒相关的CpG位点,以及诸如昼夜节律和粘附结合等通路.
结论:
- 在STB中,SLC4A2,CDK5,PDE3A和RARRES3可能起作用.
- 由于其大脑表达和功能,CDK5是未来研究的有希望的候选人.
- 需要对独立样本进行进一步的复制研究.
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