在儿科强迫症障碍中描述罕见的DNA复制数变异
Sarah B Abdallah1, Emily Olfson1, Carolina Cappi2
1Yale University School of Medicine, New Haven, Connecticut.
概括
罕见的de novo副本数变异 (CNV) 在儿科强迫症 (OCD) 中显著丰富. 全外体测序 (WES) 数据揭示了这些遗传差异,为强迫症提供了对强迫症的新见解.
科学领域:
- 遗传学 遗传学是一种遗传学.
- 神经精神病学是一种神经精神病学.
- 发展生物学 发展生物学
背景情况:
- 儿科强迫症 (OCD) 是一种常见的神经精神疾病,具有显著的遗传成分.
- 之前的研究在强迫症患者中发现了罕见的新型单核酸变体.
- 较大的研究已经研究了使用OCD中微阵列数据的副本数变异 (CNVs).
研究的目的:
- 通过使用全外因子测序 (WES) 数据,研究儿童强迫症中罕见的de novo CNVs 的作用.
- 提供对强迫症背后的遗传因素和生物过程的进一步了解.
- 为了比较患有强迫症的个体与对照家庭的罕见新型冠状病毒的频率.
主要方法:
- 分析了来自183个强迫症三组家族和771个对照家族的全外体DNA测序 (WES) 数据.
- 通过使用eXome-Hidden马尔科夫模型 (XHMM) 算法检测到CNV.
- 进行负载分析和基因本体学丰富分析;GATK-gCNV用于确认.
主要成果:
- 与对照组 (0.005) 相比,在强迫症患者中检测到较高的罕见新发性神经病毒的发生率 (每试验组0.07) (发生率比率=11.7,p=4.00×10-6).
- 使用GATK-gCNV算法证实了这种丰富.
- 在强迫症试验者中发现的大多数罕见的新型冠状病毒被预测为致病性或可能致病性,在几个基因本体学集中进行了丰富.
结论:
- 这项研究提供了第一个证据,证明了WES在儿科强迫症中检测到的罕见的新型冠状病毒的丰富.
- 这些发现补充了之前的CNV研究,并增强了对导致强迫症风险的遗传因素的理解.
- 这些结果突出了新兴CNVs在强迫症遗传结构中的重要性.
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