在注意力缺陷多动症障碍中检查死后大脑中的表观遗传衰老
Gauri G Shastri1,2, Gustavo Sudre1, Kwangmi Ahn1
1Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, United States.
Frontiers in genetics
|October 23, 2024
概括
这项研究没有发现大脑或外围组织中注意力缺陷/多动障碍 (ADHD) 患者表观遗传衰老的证据. 表观遗传钟准确地预测了年龄,但ADHD诊断与加速或延迟的生物衰老没有相关性.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 精神病学是一个精神病学.
背景情况:
- 表观遗传钟使用DNA甲基化来估计生物年龄.
- 以前的研究表明,在其他神经发育障碍中,表观遗传衰老发生变化.
- 注意缺陷/多动障碍 (ADHD) 是一种流行的神经发育状况,缺乏表观遗传衰老研究.
研究的目的:
- 研究患有ADHD的个体死后大脑和外周组织中的表观遗传衰老.
- 为了确定ADHD是否与加速或延迟的生物衰老有关.
- 为了确定不同人体组织的最佳表现的表观遗传钟.
主要方法:
- 将四个表观遗传钟应用于ADHD和对照组的DNA甲基化数据.
- 分析了皮质 (前环皮质) 和条状 (尾状) 脑组织,血液和唾液.
- 评估了ADHD诊断和表观遗传年龄之间的关联,控制共变量.
主要成果:
- 表观遗传钟准确地预测了所有分析组织的时间年龄.
- 在ADHD诊断和大脑或外围组织的改变表观遗传衰老之间没有发现显著的关联.
- 在考虑并发症和药物使用后,研究结果保持一致.
结论:
- 这项研究没有证据表明ADHD的表观遗传衰老发生了变化.
- 无结果的潜在原因包括组织/区域特异性,年龄范围和抵消发育过程.
- 需要进一步的研究来探索ADHD,大脑发育和表观遗传修饰之间的复杂关系.
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