全基因组测序改善了识别非综合征性听力损失的病原和新变异
Stefan Rentas1, Ramakrishnan Rajagopalan2, Tolga Ayazseven2
1Department of Pathology, Duke University School of Medicine, Durham, North Carolina, USA.
Human mutation
|December 10, 2025
概括
基因组测序 (GS) 提高了非综合征双侧神经神经听力损失 (BSNHL) 的诊断产量. 这种方法捕获了其他方法遗漏的变异,改善了GJB2变异个体的诊断.
科学领域:
- 遗传学 是一个遗传学.
- 听力学 听力学是指听力学.
- 基因组医学是基因组医学.
背景情况:
- 基因检测对于诊断非综合征双侧神经感官听力损失 (BSNHL) 至关重要.
- GJB2基因中的致病变体是BSNHL的最常见原因.
- 目前的诊断方法往往不够,需要多种测试策略.
研究的目的:
- 评估基因组测序 (GS) 的诊断实用性.
- 为了在BSNHL患者群体中评估GS,GJB2异性.
- 将GS与向基因测序和外基因测序 (ES) 进行比较.
主要方法:
- 对23名具有异性GJB2变异的BSNHL个体进行了回顾性分析.
- 一步一步的基因测试:GJB2重新测序,其次是外体测序 (ES),最后是基因组测序 (GS).
- 使用听力损失特定的指导方针和文献进行变种解释.
主要成果:
- 基因组测序 (GS) 在3/15个个体中确定了诊断,包括LOXHD1,STRC和影响GJB2.2的监管区域的删除.
- 外体测序 (ES) 在5/20个个体中提供了诊断,其中两个病例仍然没有确定性.
- 总体而言,11/23 (48%) 个体通过逐步方法得到诊断,GS覆盖了所有已识别的变异.
结论:
- 基因组测序 (GS) 显著提高了BSNHL的诊断产量.
- GS检测到单核酸变异 (SNV) 和副本数变异 (CNV),ES和向测试都没有检测到.
- 推GS作为一种全面的,一级诊断测试,用于非综合征性听力损失.
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