一个新的丹麦强迫症病例控制队列的临床描述和表观遗传特征
Nicklas Heine Staunstrup1, Anna Starnawska1, Jonas Bybjerg-Grauholm2
1Department of Biomedicine, Aarhus University, Denmark; The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Denmark; Center for Genomics and Personalized Medicine, CGPM, and Center for Integrative Sequencing, iSEQ, Aarhus, Denmark.
Journal of psychiatric research
|December 10, 2025
概括
这项研究在丹麦队列中发现了与强迫症相关的DNA甲基化 (DNAm) 的表观遗传差异. 这些与ZFP57和PIWIL1等基因相关的DNAm信号,从出生到青春期都存在.
科学领域:
- 神经科学和遗传学 在神经科学和遗传学.
- 精神病学和行为科学 精神病学和行为科学
背景情况:
- 强迫症 (OCD) 是一种复杂的神经精神疾病,疑似具有遗传和表观遗传基础.
- 了解强迫症的表观遗传情景对于识别新的风险因素和潜在的治疗点至关重要.
研究的目的:
- 研究全基因组DNA甲基化模式作为强迫症障碍 (OCD) 的潜在表观遗传风险因素.
- 在丹麦病例对照队列中确定与强迫症诊断相关的差异甲基化区域 (DMR).
- 检查这些表观遗传信号在不同发育阶段的一致性,从出生到青春期.
主要方法:
- 招募了一组新的丹麦病例控制队列,包括138例强迫症病例和151例控制.
- 包括K-SADS-PL和CYBOCS在内的全面心理健康评估,以及临床和家族病史.
- 使用Illumina的EPIC阵列在出生和青春期收集的血液样本上进行全基因组DNA甲基化分析.
主要成果:
- 全表观基因组关联分析发现了几个与强迫症相关的DMR (Šidák调整后p < 0.05).
- 三个DMR在出生和青少年发育阶段都得到了一致的复制.
- 这些复制的DMR被注释为ZFP57,PIWIL1 (以前与强迫症相关) 和POU6F2 (与精神分裂症和自闭症相关) 基因.
- DNA甲基化变化的方向在两个时间点之间是一致的.
结论:
- 精神疾病相关基因中的异常DNA甲基化水平与强迫症诊断有关.
- 与强迫症相关的表观遗传特征可以在出生时就被检测出来,并持续到青春期.
- 这些发现突出了早期表观遗传因素在强迫症病理生理学中的作用.
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