生物标志物 生物标志物
Miriam Rabl1, Pyry Helkkula1, Willem Lucas Hartog2
1Psychiatric University Hospital Zurich and University of Zurich, Zurich, Zurich, Switzerland.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
老年人的神经精神症状 (NPS) 与大脑脊髓液 (CSF) 中不同的蛋白质配置有关. 这些发现表明NPS背后存在独特的病理机制,可能为痴呆症提供新的治疗点.
科学领域:
- 神经科学是一个神经科学.
- 蛋白质组学是指蛋白质组学.
- 老年学是一门学科.
背景情况:
- 神经精神症状 (NPS) 在老年人中很普遍,可以表明早期痴呆症,特别是阿尔茨海默病 (AD).
- 痴呆症中NPS的潜在病理机制在很大程度上是未知的.
- 未定位蛋白质组学提供了一种探索与NPS相关的中枢神经系统 (CNS) 分子变化的方法.
研究的目的:
- 用非向蛋白质组学研究中枢神经系统与NPS存在和严重程度相关的分子通路变化.
- 确定与整体NPS严重程度和个人NPS相关的特定蛋白质配置文件.
- 探索各种NPS背后的病理机制的潜在差异.
主要方法:
- 在具有正常认知 (NC),轻度认知障碍 (MCI) 和轻度AD痴呆症的个体上利用基于质谱的非向性脑脊液 (CSF) 蛋白质组学.
- 使用神经精神病学清单问卷 (NPI-Q) 测量NPS.
- 应用了线性和逻辑回归模型,将脑脊液蛋白质水平与NPI-Q分数和个别NPS相关联,分析了1962个蛋白质.
主要成果:
- 包括362个人 (NC,MCI,AD痴呆症). 男人表现出更严重的NPS和更高的冷漠,易怒,激动和无抑制的流行率.
- 鉴定了12种与整体NPS严重程度相关的CSF蛋白质,独立于粉样蛋白状况.
- 对于个体症状,发现了明显的蛋白质变化,对于冷漠,易怒和抑郁症没有重叠.
结论:
- 未针对的CSF蛋白质组揭示了与NPS严重程度和个体症状相关的独特蛋白质配置文件.
- 初步结果表明,NPS背后存在着多种不同的病理机制.
- 这些不同的机制可以作为未来干预的具体目标.
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