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在患有GJB2,CDH23和SLC26A4变异的遗传性听力损失患者中比较前庭功能
Keita Tsukada1, Shin-Ya Nishio2, Yutaka Takumi3
1Department of Otorhinolaryngology Head and Neck Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan. ktsukada@shinshu-u.ac.jp.
Scientific reports
|May 8, 2024
概括
与GJB2,SLC26A4和CDH23基因变异相关的遗传性听力损失显示出明显的前庭功能障碍模式. 特定的基因变异与独特的半圆通道,状和状功能障碍相关.
科学领域:
- 遗传学和听力学
- 神经科学和静脉系统功能
背景情况:
- 遗传性听力损失是感觉神经听力损失的重要原因之一.
- 垂体功能障碍可能与听力损失同时发生,影响平衡和空间定向.
- 特定的基因变异,包括GJB2,SLC26A4和CDH23,是已知的遗传性听力损失的原因.
研究的目的:
- 在患有GJB2,SLC26A4和CDH23变异的患者中调查遗传性听力损失和前庭功能之间的关联.
- 为了在遗传性听力损失的不同遗传变异中比较前体功能和症状.
主要方法:
- 在39名患有GJB2,SLC26A4或CDH23变异的患者中,使用热量测试,宫前庭引起的肌原潜力 (cVEMP) 和眼球前庭引起的肌原潜力 (oVEMP) 来比较前庭功能.
- 评估了半圆通道,状管和状管的功能.
- 将患者结果与78名听力正常的患者进行了比较.
主要成果:
- 与GJB2 (0%) 和CDH23 (27%) 相比,SLC26A4变体 (47%) 的半圆通道低功率更频繁.
- 囊功能低下 (通过cVEMP) 在GJB2变体 (69%) 与其他变体 (SLC26A4,20%;CDH23,18%) 相比显著更高.
- 在这三个基因变异组中,没有观察到宫功能下降 (通过oVEMP) 的显著差异.
结论:
- 截然不同的前体功能障碍模式与GJB2,SLC26A4和CDH23变体有关.
- GJB2变种与囊性功能障碍有很强的联系,而SLC26A4变种显示出半圆形通道功能缺陷的更高患病率.
- 这些发现强调了评估前庭功能在患有特定遗传原因导致听力损失的患者的重要性.
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