副本数量的临床和认知表型变异 致病性神经发育障碍的变异 来自多祖先生物银行
Nina Zaks1, Behrang Mahjani2,3, Abraham Reichenberg2,3,4
1Department of Child and Adolescent Psychiatry, NYU Langone Health.
medRxiv : the preprint server for health sciences
|July 29, 2024
概括
与神经发育障碍 (NDD) 相关的罕见副本数变异 (CNV) 会导致认知障碍. 这项研究成功地从多种生物库中重新接触了NDD CNV携带者,证实了认知缺陷并揭示了相关的临床条件.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 这是生物银行.
背景情况:
- 罕见副本数变异 (CNV) 与神经发育障碍 (NDD) 和认知障碍有关.
- NDD CNV 影响高达 2% 的人口,影响神经精神疾病风险和认知健康.
- 之前对NDD CNVs的分析受限于临床数据稀缺,认知表型以及生物库中的祖先多样性.
研究的目的:
- 确定在多祖先生物库中"按基因型召回"方法的可行性,以深度表型NDD CNV载体.
- 研究NDD CNVs患者的临床和认知特征.
- 克服以前NDD CNV研究的局限性,通过使电子健康记录之外的详细表型化成为可能.
主要方法:
- 从多祖先的BioMe生物库中重新接触了892名成年参与者,包括335名NDD CNV,217名精神分裂症和340名神经类型对照.
- 对招募的参与者进行了全面的临床和认知评估.
- 专注于73名参与者完成评估,其中包括30个NDD CNV载体在15个位置.
主要成果:
- 在NDD CNV携带者中,40%有情绪/焦虑障碍,30%有学习障碍,13%有特殊教育史.
- 与对照组相比,NDD CNV 携带者表现出显著的认知障碍,数字跨度向后 (Beta=-1.76,FDR=0.04) 和数字跨度测序 (Beta=-2.01,FDR=0.04).
- 该研究在深层表型化方面实现了8%的再接触率.
结论:
- 在多样化的生物库中证明了NDD CNV载体"按基因型召回"的可行性.
- 证实了NDD CNVs的认知影响,并阐明了相关的临床表型.
- 强调了未来"基因型召回"研究的潜力,以推进疾病相关基因组变异的临床表征.
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