脑脊液N-乙-亚斯帕提尔-谷氨酸与艾滋病毒感染者的认知功能之间的关联
Atiksh Chandra1, Jesse Alt2, Raha M Dastgheyb1
1Department of Neurology.
AIDS (London, England)
|September 18, 2025
概括
脑脊液中较高的N-乙酸酸盐 (NAAG) 水平与艾滋病毒感染者 (PWH) 改善的空间注意力和工作记忆相关. 这一发现可能有助于开发针对神经HIV认知障碍的有针对性的干预措施.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 传染性疾病 传染性疾病
背景情况:
- 持续的注意力和工作记忆缺陷影响许多艾滋病毒感染者 (PWH),尽管有效的抗逆转录病毒治疗.
- 作为大脑二化物,N-乙酸酸 (NAAG) 调节了对认知功能至关重要的谷氨酸性传播.
- 之前的研究将高脑NAAG与更好的认知联系起来,但其在PWH脑脊液 (CSF) 中的作用未被检查.
研究的目的:
- 为了研究中枢神经液NAAG水平和PWH中特定领域的认知功能之间的关联.
- 确定CSF NAAG作为神经HIV认知障碍的潜在液体生物标志物.
主要方法:
- 脑液中NAAG水平使用液体染色学-并联质谱法 (LC/MS-MS) 来量化.
- 用基于研究领域标准 (RDoC) 的电池评估认知功能.
- 统计分析包括皮尔森相关性和调整为年龄和病毒载荷的回归模型.
主要成果:
- 更高的CSFNAAG水平与更好的空间注意力和工作记忆有显著的关联 (r=0.479,P=0.01).
- 这种关联在调整年龄和病毒载量后仍然显著.
- 在CSF NAAG和口头注意力,工作记忆,口头情节性记忆或运动功能之间没有发现显著的关系.
结论:
- 这项研究确定CSF NAAG是第一个与PWH中的特定认知领域相关的神经代谢标记物.
- CSF NAAG测量为神经HIV研究提供了一个可扩展的平台,将MRS发现与液体生物标志物联系起来.
- 在CSF中NAAG量化可能有助于早期检测,风险分层和针对神经HIV相关认知缺陷的有针对性的干预措施的开发.
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