全基因组测序增加了查尔科-玛丽-图斯病的诊断率
Christopher J Record1, Menelaos Pipis1, Mariola Skorupinska1
1Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London WC1N 3BG, UK.
Brain : a journal of neurology
|March 14, 2024
概括
全基因组测序 (WGS) 显著改善了在专家中心的Charcot-Marie-Tooth病 (CMT) 患者的遗传诊断率. 尽管WGS取得了进展,但仍存在大量的诊断差距,需要进一步的技术创新来解决未解决的案件.
科学领域:
- 神经学 神经学
- 遗传学 是一个遗传学.
- 基因组医学是基因组医学.
背景情况:
- 查洛-玛丽-牙病 (CMT) 是一种常见的,基因多样化的遗传神经系统疾病.
- 以前的CMT诊断方法在识别致病性遗传变异方面存在局限性.
- 在CMT中全基因组测序 (WGS) 的诊断产量尚未完全阐明.
研究的目的:
- 报告来自专家遗传神经病症中心的诊断结果.
- 评估全基因组测序 (WGS) 对CMT诊断的影响.
- 确定有助于诊断成功的因素和剩余的挑战.
主要方法:
- 对1515名临床CMT诊断患者 (2009-2023) 的回顾性分析.
- 基因测试包括单基因,向面板,外基因组测序和WGS.
- 不同的解释遵循了ACMG-AMP指南.
主要成果:
- 在76.9%的患者中实现了整体遗传诊断.
- CMT1的诊断率最高 (96.8%),其次是CMTi (81.0%) 和HSN (69.9%).
- PMP22重复是最常见的原因 (43.3%),其次是GJB1 (13.0%).
- WGS提供了3.5%的诊断提升,原始数据分析的显著贡献.
- 在10万个基因组项目中,19.7%的病例通过WGS.实现了诊断.
结论:
- 这项研究实现了迄今为止CMT的最高单中心诊断率,并得到了WGS的增强.
- 尽管取得了进展,但大约23%的病例仍未在遗传上得到解决.
- 参考基因组和新型测序技术的进步对于缩小诊断差距至关重要.
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