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Updated: Feb 26, 2026

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认知超越复发:认知进展独立于复发活动,反映了多发性硬化症早期燃烧的神经退行
Stefano Ziccardi1, Tom A Fuchs2, Luigi Martinelli3
1Neurology Section, Department of Neurosciences, Biomedicine and Movement Sciences, University of Verona, Verona, Italy; Multiple Sclerosis Centre, University Hospital of Verona, Verona, Italy.
Multiple sclerosis and related disorders
|February 24, 2026
概括
认知PIRA,或认知衰退没有复发,在复发性复发性MS中很常见. 早期的大脑缩,特别是全球皮质厚度,预测了这种长期认知障碍,表明了沉默的疾病活动.
科学领域:
- 神经学 神经学
- 神经成像是一种神经成像.
- 神经免疫学 神经免疫学
背景情况:
- 独立于复发活动的进展 (PIRA) 是复发缓解多发性硬化症 (RRMS) 的重要因素.
- 认知能力下降,称为"认知PIRA",可以在没有临床复发的情况下发生,并且与灰质缩有关.
- 了解认知PIRA的早期预测因素对于管理RRMS的长期结果至关重要.
研究的目的:
- 调查早期全球和区域大脑缩是否预测RRMS患者因PIRA导致的长期认知衰退.
- 确定最能预测认知PIRA的特定大脑区域和缩指标.
- 探索早期MRI发现与认知PIRA在20多年的发展之间的关系.
主要方法:
- 一项追溯的队列研究对115名RRMS患者进行了大约19年的跟踪.
- 在诊断时 (T0) 和诊断后2年 (T2) 使用1.5TMRI扫描来评估大脑缩 (皮层厚度,区域体积).
- 采用随机森林模型来分析早期MRI数据对认知PIRA的预测价值,通过神经心理评估和复发史来定义.
主要成果:
- 近一半 (49.6%) 的RRMS患者经历了显著的认知衰退,其中80.7%被归类为认知PIRA.
- 全球皮质厚度在T0是机器学习模型中认知PIRA最重要的预测因素.
- 早期的乳头体积和中额头环的纵向缩也是认知PIRA的显著区域预测因素.
结论:
- 认知PIRA是RRMS中长期认知障碍的主要驱动因素.
- 早期大脑缩的测量,特别是全球皮质厚度,是未来认知PIRA的关键预测因素.
- 这些发现凸显了认知PIRA反映了MS中持续的"沉默"疾病活动和神经退行过程.
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