常见和罕见的变体分析表明,在ADHD中,婴儿晚期小脑发育和免疫基因与ADHD有关
Yuanxin Zhong1, Larry W Baum1,2, Justin D Tubbs1,3,4,5
1Department of Psychiatry, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China.
Journal of neurodevelopmental disorders
|June 20, 2025
概括
在亚洲人群中,研究了注意力缺陷多动症 (ADHD) 的遗传因素. 常见和罕见的变种涉及ADHD风险中的大脑发育,小脑功能和免疫过程.
科学领域:
- 神经遗传学 神经遗传学
- 精神疾病 精神疾病
- 基因组学就是基因组学.
背景情况:
- 注意缺陷多动症 (ADHD) 是一种常见的神经精神疾病,具有重要的遗传基础.
- 以前的全基因组关联研究 (GWAS) 主要在欧洲人群中确定了ADHD风险位点.
- 在亚洲人群中,遗传风险因素,特别是低频/罕见变异,对亚洲人群的了解较少.
研究的目的:
- 调查常见和低频/罕见变体对香港中文样本ADHD的贡献.
- 综合分析ADHD的遗传基础,使用多omics数据和大规模总结统计数据.
- 在亚洲群体中确定与ADHD相关的新型遗传风险因素和途径.
主要方法:
- 使用Illumina Infinium全球查阵列对279例ADHD病例和432例对照进行基因定型.
- 应用各种分析方法,包括多基因风险评分分析和罕见变异关联测试.
- 整合多主题数据和大规模总结统计数据,用于全面的遗传分析.
主要成果:
- 确定了41个潜在的基因组风险位点和111个候选风险基因,为那些参与婴儿后期大脑发育的人进行了丰富.
- 涉及小脑及其功能连接在注意力/中央执行网络.
- 发现了与来自欧洲祖先的常见变异风险的显著关联,并确定了ADHD和特定基因 (TEP1,MTMR10,DBH,TBCC,ANO1) 中罕见的有害变异之间的相关性.
- 常见和罕见的变体分析都表明ADHD遗传风险和免疫过程之间存在关联.
结论:
- 在ADHD中重新验证了神经系统异常发育,将神经功能障碍假设扩展到多系统视角.
- 鉴定了来自常见和低频/罕见变异的融合风险因素,突出了婴儿后期大脑发育的脆弱性,特别是小脑.
- 突出了免疫过程在ADHD遗传病因学中的参与.
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