儿童语音障碍的遗传结构:一篇综述
Angela T Morgan1,2,3, David J Amor4,5, Miya D St John4,6
1Murdoch Children's Research Institute, Melbourne, VIC, Australia. angela.morgan@mcri.edu.au.
Molecular psychiatry
|February 17, 2024
概括
基因分析已经确定了30多个导致儿童语言失调 (CAS) 的基因,这是一种严重的语言障碍. 三分之一患有CAS的儿童具有遗传变异,为精确疗法铺平了道路.
科学领域:
- 遗传学 是一个遗传学.
- 神经发育障碍 神经发育障碍
- 语音科学 语言科学
背景情况:
- 严重的语言障碍会对识字能力,学术成绩和心理社会福祉产生负面影响.
- 在2001年发现FOXP2基因之前,儿童语音失调 (CAS) 的遗传基础是未知的.
- 最近的进展已经确定了30多个CAS的致病基因,揭示了显著的遗传异质性.
研究的目的:
- 审查最近在儿童语音失调 (CAS) 中的遗传发现.
- 探索这些遗传发现对诊断和潜在疗法的影响.
- 将CAS的遗传基础与更常见的言语和语言障碍区分开来.
主要方法:
- 对确定CAS的队列进行遗传分析.
- 在致病基因中的致病变体的识别和表征.
- 对CAS遗传学和相关神经发育条件的现有文献的审查.
主要成果:
- 在3个队列中,在122个CAS病例中发现了36种致病变体.
- 大约三分之一的CAS儿童具有可识别的遗传变异.
- 许多已识别的基因汇聚在染色质修饰或转录调节途径上.
- 新的CAS基因扩大了表型谱,包括具有正常智力的较温和表现.
结论:
- 临床遗传测试是建议的个人与CAS由于其高的诊断率.
- 共享的遗传机制突出了精密疗法的潜在目标.
- 了解CAS遗传学为研究其他语音和语言障碍提供了基础,尽管它们可能涉及复杂的遗传模式.
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