在与年龄相关的听力损失中,干扰淋巴系统和大脑网络重组
Shuo Li1, Zhengqian Wang2, Yuting Xia1
1Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China.
Neuroscience
|July 17, 2025
概括
与年龄相关的听力损失 (ARHL) 与大脑网络变化和淋巴功能受损有关. 多模式MRI显示,这些问题随着听力损失的严重程度而恶化,影响认知.
科学领域:
- 神经成像是一种神经成像.
- 听觉神经科学 听觉神经科学
- 老年学是一门学科.
背景情况:
- 与年龄相关的听力损失 (ARHL) 是一种常见的感官缺陷,与认知能力下降有关.
- 在ARHL的基础神经病理机制,特别是关于大脑结构和功能,仍然不完全理解.
- 淋巴系统功能障碍和大脑网络改变与各种神经疾病有关.
研究的目的:
- 研究与年龄相关的听力损失 (ARHL) 和淋巴系统功能之间的关系.
- 检查ARHL患者的大脑网络重组情况.
- 探索多模式MRI生物标志物的潜力,以评估ARHL相关的神经病理.
主要方法:
- 在178名参与者中利用多式磁共振成像 (MRI) (69人为对照组,79人轻度ARHL,30人中度ARHL).
- 使用扩散张力图像分析评估淋巴活动沿周围血管空间 (DTI-ALPS) 索引,周围血管空间 (PVS) 体积和胸膜体积 (CPV).
- 评估功能性大脑网络拓和认知功能 (MoCA,CFTd).
主要成果:
- 观察到淋巴功能逐渐受损 (DTI-ALPS下降,PVS扩大,CPV增加),ARHL严重程度增加.
- 认知能力下降与淋巴功能障碍相关,并降低了MoCA和CFTd的得分.
- 大脑网络显示出异常的全局和节点效率指标,调解分析表明淋巴功能障碍部分将网络干扰与认知缺陷联系在一起.
- 一个结合的生物标志物模型 (DTI-ALPS + PVS + CPV) 显著提高了诊断准确度,而不是单个标志物.
结论:
- 淋巴功能障碍和大脑网络重组与与年龄相关的听力损失的严重程度有显著的联系.
- 一个基于MRI的生物标志物 (DTI-ALPS,PVS,CPV) 的综合面板显示了ARHL临床分层的前景.
- 这些发现突显了ARHL的神经病理影响,并表明了减轻认知衰退的潜在治疗点.
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