巴基斯坦人口中遗传性神经肌肉疾病的频谱
Fizza Akbar1, Shafaq Muhammad Saleem2, Ehtesham Khalid3
1Division of Women and Child Health, The Aga Khan University, Karachi, Pakistan.
American journal of medical genetics. Part A
|June 27, 2023
概括
这项研究调查了巴基斯坦的遗传神经肌肉疾病 (NMD),在一半以上的患者中确定了遗传原因. 临床相关性和家庭研究改善了这些复杂遗传疾病的诊断率.
科学领域:
- 遗传学 是一个遗传学.
- 神经学 神经学
- 分子生物学分子生物学
背景情况:
- 遗传性神经肌肉疾病 (NMDs) 是基因多样性的,影响超过500个基因.
- 预计自体逆向性NMD在高度血缘关系的巴基斯坦人口中更为普遍.
- 这项研究是首次使用下一代测序 (NGS) 详细描述巴基斯坦NMDs的遗传谱.
研究的目的:
- 分析怀疑遗传性NMD的巴基斯坦患者的临床和遗传特征.
- 在这个人群中识别致病基因和遗传变异.
- 评估NGS和基因型-表型相关性在诊断NMD中的有用性.
主要方法:
- 在2016年至2020年期间评估的112名患者的回顾性图表审查.
- 基因测试包括基于NGS的单基因测序,多基因面板和整个外基因组测序.
- 进行了基因型-表型相关性和家庭隔离分析.
主要成果:
- 在基因型-表型相关性和分离分析后,52.7%的患者被诊断为遗传性NMD.
- 下一代测序在41.9%的患者中发现了致病变异,其中47.3%的患者具有不确定的意义 (VUS) 的变异.
- 在COL6A2,FKTN,GNE和SGCB中确定了可能的创始人变体.
结论:
- 结合临床相关性和家庭研究的下一代测序对于在巴基斯坦人口中诊断遗传性NMD至关重要.
- 通过将遗传发现与临床数据和家庭研究相结合,可以显著提高NMDs的诊断产量.
- 了解巴基斯坦NMDs的遗传景观可以为诊断策略和遗传咨询提供信息.
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