基于网络的统计数据显示,在轻度认知障碍时,前额叶皮层中存在增强的子网络:一种功能近红外光谱学研究
Peirong Wu1, Zeping Lv2, Yinuo Bi3
1Department of Neurological Rehabilitation, Jiangbin Hospital of Guangxi Zhuang Autonomous Region, Nanning, China.
Frontiers in aging neuroscience
|November 18, 2024
概括
患有轻度认知障碍 (MCI) 的人在前额叶皮质中显示出大脑连接的改变. 这种增强的右前额叶皮层子网络与认知功能有关,可能是MCI治疗的目标.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 医疗成像医学成像
背景情况:
- 轻度认知障碍 (MCI) 对发展为阿尔茨海默病的风险很大.
- 了解MCI的神经基础对于早期干预和治疗开发至关重要.
研究的目的:
- 研究患有MCI的个体前额叶皮层 (PFC) 的异常功能连接 (FC).
- 探索PFC中改变的FC与MCI患者的认知功能之间的关系.
主要方法:
- 功能近红外光谱学 (fNIRS) 用于测量67名MCI患者和71名健康对照者的大脑活动.
- 参与者完成了蒙特利尔认知评估 (MoCA),以评估认知功能.
- FC分析在正确的PFC中确定了特定的子网络,回归模型检查了影响认知得分的因素.
主要成果:
- 与HC相比,MCI患者的MoCA得分明显较低 (p < 0.001).
- 在MCI组 (CH12-CH15,CH12-CH16,CH13-CH15,CH13-CH16) 中发现了右侧PFC的增强子网络.
- 这个子网络和教育持续时间内的FC值与MoCA分数有显著的相关性,解释了认知衰退的25.7%的差异.
结论:
- 增强的右侧PFC子网络可能在MCI的病理生理学中发挥作用.
- 这种已识别的子网络代表了管理MCI和预防发展为痴呆症的潜在治疗目标.
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