与抑郁症相关的功能连接性变化 痴呆症与勒维体的痴呆症
Manon Querry1, Anne Botzung1,2, Marion Sourty1
1University of Strasbourg and CNRS, ICube Laboratory UMR 7357 and FMTS (Fédération de Médecine Translationnelle de Strasbourg), IMIS Team, Strasbourg, France.
International journal of geriatric psychiatry
|February 26, 2025
概括
患有勒维体 (DLB) 痴呆症的抑郁症状与大脑连接的改变有关,特别是在前和视觉区域之间. 这些变化可能会影响DLB患者的情绪调节和认知过程.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 精神病学是一个精神病学.
背景情况:
- 抑郁症状在早期痴呆症中很常见,影响超过一半的患者.
- 了解DLB抑郁症的神经基础对于早期诊断和治疗至关重要.
研究的目的:
- 为了调查功能连接性 (FC) 变化与抑郁症状相关的预发性至轻度DLB.
- 为了比较抑郁和非抑郁的DLB患者和对照中的FC.
主要方法:
- 利用66名DLB患者和18名对照者的MRI数据.
- 使用迷你国际神经精神病学访谈评估抑郁症.
- 通过基于种子的方法,通过CONN工具箱分析了静止状态功能连接 (rsFC).
主要成果:
- 在DLB患者中发现了抑郁症得分和前时间和视觉区域之间的rsFC之间的相关性 (p <0.05,FDR修正).
- 患有抑郁症的DLB患者在突出网络 (SN) 内以及小脑网络 (CN) 和额头-双侧网络 (FPN) 之间表现出减少的rsFC.
- 在抑郁的DLB患者中,在默认模式网络 (DMN) 和语言网络 (LN) 之间观察到rsFC的增加.
结论:
- DLB中的抑郁症状与特定的rsFC变化有关,特别是涉及前和视觉区域.
- 这些连接性改变可能会导致DLB的情绪失调,负面偏见和反.
- 抗抑郁药物治疗显示出关键大脑网络内改变的FC的关联.
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