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Updated: Jan 22, 2026

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大鼠噪音诱导的前庭功能障碍:使用cVEMP进行纵向评估和在低频声创伤后进行行为测试
Fatma Nur Komur1,2, Bugra Genc3, Luis Roberto Cassinotti2
1Department of Audiology and Speech Disorders, Institute of Health Sciences, Marmara University, Istanbul, Türkiye.
Frontiers in integrative neuroscience
|January 21, 2026
概括
高强度噪音暴露显著影响前庭功能,120dB导致老鼠持久平衡问题. 较低强度的噪音只显示了暂时的效果,强调了噪音的强度.
科学领域:
- 神经科学是一个神经科学.
- 听觉和静脉系统研究 听觉和静脉系统研究
- 毒理学和环境健康
背景情况:
- 高强度噪音是已知的听力损失原因之一.
- 噪音对前庭系统的影响不太清楚.
- 耳和前置结构具有共同的解剖接近性和脆弱性.
研究的目的:
- 研究长期暴露于低频噪声 (LFN) 对前庭功能的纵向影响.
- 为了比较两种不同的声音强度 (110和120dB SPL) 对前庭功能的影响.
- 评估对噪音暴露的行为和电生理反应.
主要方法:
- 成年雄性Sprague-Dawley大鼠被暴露在LFN (0.5-4.0 kHz) 的110或120dB SPL6小时.
- 使用宫前庭引起的肌原潜能 (cVEMPs) 评估了前庭功能.
- 听觉功能 (听觉脑干反应 - - ABR) 和平衡行为也在21天内进行了评估.
主要成果:
- 暴露于120 dB SPL导致显著的,永久的前庭功能障碍 (升高cVEMP值,降低幅度) 和运动协调障碍.
- 虽然在21天内观察到部分恢复,但前庭功能没有恢复到基线.
- 110dB的SPL暴露只导致临时的cVEMP振幅下降和微小的ABR变化.
结论:
- 低频噪声暴露对前庭功能有强度依赖的影响,对听觉系统产生反射效应.
- 较高强度的噪声 (120 dB SPL) 会导致更严重和持久的前庭缺陷.
- 在对噪音引起的健康状况进行完整评估时, вести功能评估至关重要.
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