在庞丁性心脏病发作中,前丘脑电路内的有效连接被破坏:光谱动态因果建模研究
Huiyou Chen1, Qianqian Mao1, Yujie Zhang1
1Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China.
Brain sciences
|January 22, 2024
概括
庞丁性心脏病发作改变了前端 - thalamic 电路连接,影响了运动和认知功能. 这些有效连接性 (EC) 变化可能作为关节梗塞 (PI) 的新型成像标志物.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 庞丁性心脏病发作 (PI) 可以导致显著的运动和认知障碍.
- 了解PI所影响的神经回路对于开发有效的治疗方法至关重要.
- 额头 - thalamic 电路在运动控制和认知处理中起着至关重要的作用.
研究的目的:
- 为了研究带梗塞 (PI) 患者的前端 - thalamic 电路内的有效连接 (EC) 的变化.
- 探索这些EC变化与PI患者的运动和认知衰退之间的关联.
- 评估EC作为PI的新型成像标记物的潜力.
主要方法:
- 招募了33名右PI患者 (RPIs),38名左PI患者 (LPIs) 和67名健康对照 (HCs).
- 使用光谱动态因果建模 (spDCM) 进行EC分析,用于前端 - thalamic电路 (thalamus,caudate,SMA,mPFC,ACC).
- 评估了患者组和HC之间的EC差异,并将其与运动和认知得分 (MoCA,FMA) 相关联.
主要成果:
- LPIs表现出改变的EC,包括增加mPFC与R-SMA连接,以及减少thalamus-ACC,SMA-SMA,尾状thalamus和thalamus-ACC连接.
- RPI显示尾状体-mPFC,丘脑/尾状体-SMA和尾状体-ACC通路的EC增加,以及尾状体-mPFC,SMA-尾状体和SMA-丘脑通路的EC减少.
- 在RPIs中EC (R-caudate到mPFC) 和MoCA得分之间发现了负相关性,在LPIs中EC (R-caudate到R-thalamus) 和FMA得分之间发现了负相关性.
结论:
- 在关节性心脏病发作中,前端 - thalamic 电路内的有效连接受到显著的改变.
- 这些EC变化与PI患者观察到的运动和认知功能障碍有关.
- 有效的连接性显示出作为一种新的神经成像生物标志物,用于关节性心脏病发作.
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