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听力损失是TECTA基因突变的次要原因
Rocío González-Aguado1,2,3, Esther Onecha4,5, Jaime Gallo-Terán6
1Department of Otolaryngology, Hospital Universitario Marqués de Valdecilla, Santander, Cantabria, Spain.
The Annals of otology, rhinology, and laryngology
|February 5, 2025
概括
在西班牙北部,TECTA基因变异是遗传性听力损失的重要原因,在2.14%的患者中发现. 常见的变体c.3107G>A往往导致渐进的听力损失,可用助听器治疗.
科学领域:
- 遗传学 遗传学 是一个
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 医学诊断 医学诊断 医学诊断
背景情况:
- 不知病因的双边感神经听力损失 (SNHL) 是一个重大的临床挑战.
- 遗传因素在SNHL的病因学中起着至关重要的作用.
- 该TECTA基因编码的alpha-tectorin,一个关键的构造膜的组成部分,其变体与听力障碍相关.
研究的目的:
- 确定西班牙北部不明原因双边SNHL个体中TECTA基因变异的患病率.
- 在临床上描述与这个人群中TECTA变异相关的表型.
主要方法:
- 一项观察性,前性和描述性研究在三级医院进行了六年 (2018-2024年).
- 使用向基因小组的下一代测序 (NGS) 用于识别TECTA基因的变异.
- 双边SNHL来源不明的患者被招募用于基因分析.
主要成果:
- 在326名患者中有7名 (2.14%) 发现了致病或可能致病的TECTA变体.
- 最常见的致病变体是c.3107G>A (6名患者),其次是c.5383+6T>A (1名患者).
- 在8名患者 (2.45%) 中发现了未知意义的变异. 该表型包括中度频率至重度高频率听力损失,通常从童年开始渐进,对助听器反应良好.
结论:
- 在研究的人群中,TECTA基因变异是相对常见的SNHL遗传原因.
- c.3107G>A变种是发现的最常见的变种.
- 典型的临床表现包括缓慢渐进的,中高频率的SNHL,通常可以使用助听器进行管理,从而改善语音可理解性.
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