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在患有MTRNR1基因m.1555A>G突变的患者中感觉神经听力损失
Jaime Gallo-Terán1, Cristina Salomón-Felechosa2, Rocío González-Aguado3
1Department of Radiology, Marqués de Valdecilla University Hospital, Santander, Spain.
The Laryngoscope
|September 26, 2024
概括
在MTRNR1基因的m.1555A>G突变导致遗传性听力损失,往往恶化了链杆菌素. 建议进行遗传检测,以防止受影响家庭的耳毒性.
科学领域:
- 遗传学 是一个遗传学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
- 听力学 听力学是指听力学.
背景情况:
- 线粒体DNA突变,特别是MTRNR1,与非综合征性听力损失有关.
- 氨基甘油酸抗生素可以加剧这些突变的个体的听力损失.
- m.1555A>G突变是传感神经听力损失的已知原因之一.
研究的目的:
- 为了研究传感神经听力损失的临床特征,归因于MTRNR1基因中的m.1555A>G突变.
- 确定影响听力损失表型的潜在修饰因素.
- 评估耳植入在受影响个体中的疗效.
主要方法:
- 观察性回顾性研究设计.
- 在怀疑遗传双侧神经神经听力损失的患者中分析m.1555A>G突变.
- 与100名正常听力个体的对照组进行比较.
主要成果:
- 在20个家庭的82个个体中发现了m.1555A>G突变,对照组中没有这种突变.
- 听力损失的严重程度从正常到严重不等,而 estreptomycin 暴露与更严重的听力损失相关.
- 发病时间从童年到成年,听力损失呈现进展或稳定;没有观察到前庭或外耳表现.
结论:
- m.1555A>G MTRNR1突变经常导致双边,对称的感觉神经神经听力损失,主要影响高频率,并被菌素加剧.
- 这种突变仍然没有影响静脉功能.
- 现型变异性表明环境和遗传修饰者;耳植入提供了良好的语音可理解性结果. 对于有听力损失史的家庭,建议进行遗传查.
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