与自闭症相关的有害编码变异在不同种群中是一致的,拉丁美洲混合种群就是一个例子
Marina Natividad Avila1,2,3,4,5,6, Seulgi Jung1,2,3,4,5,6, F Kyle Satterstrom7,8,9
1Seaver Autism Center for Research and Treatment, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
medRxiv : the preprint server for health sciences
|January 20, 2025
概括
这项研究分析了拉丁美洲个体中自闭症谱系障碍 (ASD) 的遗传风险,确定了35个重要的ASD风险基因. 研究结果表明,自闭症生物学是普遍的,无论祖先.
科学领域:
- 遗传学 遗传学 是一个
- 神经发育障碍 神经发育障碍
- 人口基因组学 人口基因组学
背景情况:
- 识别自闭症谱系障碍 (ASD) 和发育障碍的基因已经取得了进展,但研究在很大程度上排除了多样化的人口.
- 大多数遗传学研究都侧重于欧洲祖先,限制了对其他群体遗传风险的理解.
研究的目的:
- 调查拉丁美洲人口中ASD的遗传风险.
- 为了识别新的和确认已知的ASD风险基因跨不同的祖先.
主要方法:
- 拉丁美洲祖先联盟的自闭症基因组学 (GALA) 对超过15,000名拉丁美洲祖先的个人进行了大规模的测序研究.
- 进行了全基因组关联分析,以确定显著的ASD风险基因.
主要成果:
- 在拉丁美洲队列中确定了35个全基因组显著的ASD风险基因 (FDR <0.05).
- 在拉丁美洲和欧洲人口之间发现了ASD风险基因的大量重叠.
- 突出了新兴和已确立的ASD风险基因,支持在不同群体中进行基因测试的实用性.
结论:
- 自闭症的遗传基础似乎是普遍的,并没有受到祖先的显著影响.
- 强调需要进行包容性遗传研究,以充分了解所有人群中的发育障碍风险.
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