在帕金森病和快速眼球运动睡眠行为障碍中对条纹体铁进行亚区域分析

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Characterizing the Relationship Between Eye Movement Parameters and Cognitive Functions in Non-demented Parkinson's Disease Patients with Eye Tracking

Published on: September 26, 2019

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Erind Alushaj¹, Dimuthu Hemachandra², Alan Kuurstra³

¹Department of Neuroscience, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada; Western Institute for Neuroscience, Western University, London, Ontario, Canada.

NeuroImage. Clinical

|October 5, 2023

概括

研究人员发现,在大脑的特定部分,铁含量较低.

科学领域:

神经成像和神经退化
生物标志物发现发现

背景情况:

帕金森病 (PD) 的运动症状源于条纹体中的多巴胺损失.
快速眼动睡眠行为障碍 (RBD) 是一种前兆性PD指标,具有类似的条纹变化.
阳铁变化与神经退行有关,但PD和RBD的研究结果不一致.

研究的目的:

调查和澄清在早期帕金森病 (PD) 和快速眼动睡眠行为障碍 (RBD) 中的条纹铁水平变化.
探索定量敏感性映射 (QSM) 和基于曲谱的分片作为PD和RBD的生物标志物的潜力.

主要方法:

在26名早期PD患者,16名RBD患者和39名健康对照人群中进行了3次特斯拉MRI扫描.
定量敏感性测绘 (QSM) 测量了标准的铁含量和带状图分区的状状子区域.
扩散MRI和Tziortzi图谱被用来进行详细的条纹子区域分片.

主要成果:

在标准条纹体解剖学中没有发现重要的铁水平差异.
与对照人群相比,通道图分片化条纹体的尾部运动子区域在早期PD患者中显示铁含量明显较低.
在尾部运动条纹体的定量敏感度映射 (QSM) 实现了0.80的诊断准确度,用于早期PD检测.

结论:

基于轨道图的条纹分片增强了检测铁水平变化的灵敏度,解决了PD文献中的不一致性.
尾部运动条纹体中铁的减少是早期PD的敏感指标,但不是RBD.
条纹体的定量敏感性映射 (QSM) 显示出开发用于早期PD检测的多式模式生物标志物的希望.

关键词:

帕金森病是帕金森氏症的一种疾病.定量敏感性映射测绘定量敏感性映射测绘快速眼动睡眠行为障碍睡眠行为障碍状体是一个状体.曲谱学曲谱学曲谱学曲谱学

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