患有GJB2基因突变的患者的听力和听力损失进展:长期随访
Aki Sakata1, Akinori Kashio1, Misaki Koyama1
1Department of Otolaryngology and Head and Neck Surgery, Graduate School of Medicine, The University of Tokyo, Tokyo 113-8654, Japan.
International journal of molecular sciences
|December 9, 2023
概括
针对GJB2突变的基因测试可以帮助预测听力损失水平,例如p.Arg143Trp等特定基因型与严重听力损失有关. 长期监测对于检测听力损失的进展至关重要,特别是在250 Hz和4000 Hz.
科学领域:
- 遗传学 遗传学 是一个
- 听力学 听力学是指听力学.
- 耳鼻喉科 耳鼻喉科 耳鼻喉科
背景情况:
- GJB2突变是先天性听力损失的常见原因.
- 根据GJB2基因型预测听力损失的严重程度和进展仍然是一个挑战.
研究的目的:
- 为了确定GJB2突变类型 (截断与非截断) 是否预测听力损失程度.
- 评估特定的GJB2基因型是否与听力损失水平和进展相关.
- 分析具有GJB2突变的个体的长期听力损失进展.
主要方法:
- 对GJB2突变的基因型分析.
- 突变的分类是截断或非截断的.
- 听力损失的长度监测平均为6.9年 (至少2年).
- 在各种频率的听力测量评估,包括250 Hz和4000 Hz.
主要成果:
- 截断GJB2突变在严重/严重听力损失中更频繁,但缺乏预测准确性.
- 特定的基因型,如p.Arg143Trp,与严重的听力损失有关.
- 该p.Leu79Cysfs*3等位基因显示出广泛的听力损失,并与观察到的进展有关.
- 在三个病例 (四个耳朵) 中,注意到听力损失的进展,主要是p.Leu79Cysfs*3突变.
- 在4000Hz时观察到显著的进展,长期随访时的趋势是250Hz.
结论:
- 虽然单独的GJB2突变类型是不够的,但特定的基因型可以预测听力损失水平.
- 密切的听力测量监测在250Hz和4000Hz对于检测进展至关重要.
- 被诊断为中度至重度听力损失的儿童需要定期进行随访,以控制潜在的进展.
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