在痴呆症中,冷漠和抑郁症状之间的功能和微观结构神经基质
Sheng-Min Huang1, Yen-Hsuan Hsu2, Jir-Jei Yang3
1Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan; Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli 350, Taiwan.
NeuroImage. Clinical
|April 11, 2025
概括
在痴呆症中区分冷漠和抑郁需要了解它们的大脑基础. 双模态MRI揭示了在阿尔茨海默病和皮层下缺血性血管疾病中对冷漠和抑郁症状的独特神经成像标志物.
科学领域:
- 神经成像是一种神经成像.
- 神经学 神经学
- 精神病学是一个精神病学.
背景情况:
- 抑郁症状和冷漠性经常在痴呆症中重叠,使临床诊断复杂化.
- 了解痴呆症亚型中冷漠和抑郁的独特神经生物学基础至关重要.
- 阿尔茨海默病 (AD) 和皮下缺血性血管疾病 (SIVD) 是常见的痴呆症亚型,症状重叠.
研究的目的:
- 在痴呆症中使用双模态MRI来区分冷漠和抑郁症状的神经基质.
- 为了研究与阿尔茨海默病和SIVD患者的冷漠和抑郁相关的明显的大脑网络变化.
主要方法:
- 92名痴呆症患者 (AD和SIVD) 和30名对照人群接受了MRI扫描.
- 使用冷漠评价量表 (AES) 评估冷漠,使用贝克抑郁 inventory (BDI) 评估抑郁.
- 分析休息状态功能性MRI (fALFF) 和扩散性皮质图像 (MK) 来识别大脑枢纽和网络变化.
主要成果:
- 低频波动的分数振幅 (fALFF) 显示了默认模式网络 (DMN) 和面对面对面网络 (FPN) 的广泛变化,用于冷漠,以及抑郁症的突出网络 (SAN).
- 平均曲 (MK) 显示了DMN和SAN中的焦点变化,无论是冷漠还是抑郁.
- 在冷漠和SIVD中,fALFF与DMN/FPN的相关性更强,而MK在冷漠和AD中与特定区域 (前带膜,岛膜) 的相关性更强,这表明了不同的模式.
结论:
- 双模态MRI (fALFF和MK) 可以区分痴呆症中冷漠和抑郁症状的独特神经病理基础.
- 漠不关心和抑郁表现出大脑网络参与和AD和SIVD区域变化的独特模式.
- 这些发现支持使用先进的神经成像技术来准确诊断和理解痴呆症神经精神病症状.
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