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在ALS中发现下丘脑网络中断
Fabiola Freri1, Edoardo Gioele Spinelli1,2,3, Elisa Canu1,2
1Neuroimaging Research Unit, Division of Neuroscience and Unit of Neurology, IRCCS San Raffaele Scientific Institute, Via Olgettina, 60, 20132, Milan, Italy.
肌缩侧面硬化症 (ALS) 患者表现出改变的下丘脑功能连接,特别是与尾状核. 这些变化与疾病的严重程度和进展相关,这表明早期预后见解的潜力.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 神经科学是一个神经科学.
背景情况:
- 结构性核磁共振 (MRI) 揭示了脑下垂体缩和变化的白质 (WM) 连接在肌缩侧面硬化症 (ALS).
- 脑下垂体功能连接及其在ALS中的临床关联在很大程度上仍未被探索.
- 这项研究调查了ALS中下丘脑的静止状态功能连接 (RS-FC).
研究的目的:
- 为了比较ALS患者和健康对照者之间的下丘脑RS-FC.
- 检查下丘脑RS-FC与临床参数之间的关系,包括疾病严重程度 (ALSFRS-r),BMI,持续时间,进展率,存活率,下丘脑体积和WM完整性.
主要方法:
- 71名ALS患者和39名对照人接受了结构性和静止状态功能性MRI.
- 基于种子的分析被用来评估下丘脑的RS-FC.
- 评估了RS-FC,临床特征和WM完整性 (使用基于通道的空间统计) 之间的相关性.
主要成果:
- 与对照人群相比,ALS患者表现出下丘脑RS-FC增加,并具有尾状核.
- 较大的疾病严重程度与增强的下丘脑RS-FC与尾状核和轨道前皮层相关.
- 低垂体RS-FC与体/小体基因和疾病进展率的分数异位变异 (FA) 有关.
结论:
- 这些发现支持ALS中下丘脑变化的存在.
- 脑下垂体变化可能作为ALS预后分层的一个生物标志物.
- 早期检测下垂体变化可能有助于评估治疗干预效果.
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