马赛克染色体改变对精神分裂症的贡献
Kaihui Chang1, Xuemin Jian2, Chuanhong Wu3
1The Affiliated Hospital of Qingdao University & The Biomedical Sciences Institute of Qingdao University (Qingdao Branch of SJTU Bio-X Institutes), Qingdao University, Qingdao, China; School of Basic Medicine, Qingdao University, Qingdao, China; National Engineering Research Center of Innovation and Application of Minimally Invasive Instruments, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China.
Biological psychiatry
|June 28, 2024
概括
马赛克染色体变异或体质复制数变异 (sCNVs) 在精神分裂症 (SCZ) 患者中明显更常见. 这些早期发育变异在SCZ遗传风险中起着关键作用.
科学领域:
- 遗传学 遗传学 是一个
- 神经科学是一个神经科学.
- 基因组不稳定性 基因组不稳定性
背景情况:
- 马赛克染色体变化 (MCAs) 与神经精神疾病有关.
- 早期发育的体质拷贝数变异 (sCNVs) 对精神分裂症 (SCZ) 风险的具体贡献仍然不清楚.
研究的目的:
- 调查早期发育sCNVs在精神分裂症风险中的作用.
- 与对照组相比,分析SCZ患者中sCNVs的负担和频率.
主要方法:
- 使用MoChA工具分析了来自9715名SCZ患者和28822名中国血统对照的血源基因型阵列.
- 与精神病基因组学联盟 (PGC) 数据集 (12,834 SCZ病例,11,648对照) 和死后脑组织数据 (449例,487对照) 的整合.
- 对可能的早期发育sCNV进行严格的过,并在不同的细胞分数切断线上进行评估.
主要成果:
- 在SCZ患者 (1.00%) 和对照组 (0.52%) 中,体质损失的检测率显著更高,赔率比率为1.91 (p < 1.49 × 10-6).
- 对于sCNVs的几率比率随着较高的细胞分数切断值而增加,达到2.78.
- 在特定染色体区域 (例如,10q21.1,3q26.1,1q31.1,12q21.31-21.32) 识别与SCZ相关的复发性sCNV,并通过PGC数据和跨组织分析进行验证.
结论:
- 马赛克染色体变化对精神分裂症有重大影响.
- 这些发现强调了sCNVs在SCZ遗传病因学中的关键作用.
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