检查艾滋病毒感染无症状神经认知障碍患者的大脑功能变化:一项纵向研究
Juming Ma1, Zhongkai Zhou2, Shuai Han1
1Department of Radiology, Qilu Hospital of Shandong University, Jinan, China.
Brain and behavior
|June 26, 2025
概括
即使使用组合抗逆转录病毒疗法 (cART),艾滋病毒相关的神经认知障碍 (ANI) 也显示大脑功能下降. 休息状态fMRI显示HIV患者的认知能力恶化,影响记忆力和执行功能.
科学领域:
- 神经科学是一个神经科学.
- 放射学 放射学是一门学科.
- 传染性疾病 传染性疾病
背景情况:
- 与艾滋病毒相关的神经认知障碍 (HAND),特别是无症状的神经认知障碍 (ANI),尽管结合抗逆转录病毒疗法 (cART),但仍然存在.
- 休息状态功能磁共振成像 (rs-fMRI) 对艾滋病毒患者的ANI研究很少发生.
- ANI代表了HAND的早期阶段,强调了早期检测和监测的必要性.
研究的目的:
- 使用rs-fMRI. 调查艾滋病毒阳性个体与NI的脑功能纵向变化.
- 为了将神经成像发现与随着时间的推移的神经认知表现相关联.
- 在ANI的背景下评估cART对大脑功能的影响.
主要方法:
- 60名右撇子的中国男性患者患有与艾滋病毒相关的ANI,经历了大约1.68年的连续神经认知评估和rs-fMRI扫描.
- 使用低频波动幅度 (ALFF/fALFF),区域同质性 (ReHo) 和功能连接性 (FC) 分析来评估大脑功能.
- 进行统计分析以确定大脑活动和连接模式的显著变化.
主要成果:
- 随访的rs-fMRI显示,在包括MOG,cuneus和上额回形在内的区域ALFF下降,右侧岛屿ALFF增加.
- 对ReHo的分析显示左侧中间带状环和左侧前中心环的值有所降低,对上边缘环和后中心环的ReHo值有所增加.
- FC分析表明,前中心环和皮质之间的连接性下降,以及MOG和皮质之间的连接性下降,与记忆,处理速度和执行功能的神经认知下降相关.
结论:
- 尽管有cART,但患有ANI的HIV阳性个体的脑功能呈现逐渐恶化.
- 这些功能性大脑变化与特定的神经认知领域的下降有关,特别是视觉处理和执行功能.
- 纵向 rs-fMRI 是监测 ANI 艾滋病毒患者的大脑健康和认知衰退的宝贵工具.
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