偏磁边缘损伤与多发性硬化症视觉通路的跨突触退化有关
Abdul Jaber Tayem1,2,3, Angel Liu1,2,3, Sargis Manukyan1,2,4
1Visual Outcomes Lab, Department of Neurology, Cedars Sinai Medical Center, Los Angeles, California, USA.
Annals of clinical and translational neurology
|March 17, 2026
概括
逆行性跨突触退化 (rTSD) 在多发性硬化症 (MS) 患者中更为常见. 这种视觉通路损伤与随着时间的推移增加的残疾和视力丧失有关.
科学领域:
- 神经科学是一个神经科学.
- 眼科医生 眼科 眼科
- 放射学 放射学是一门学科.
背景情况:
- 逆行性跨突触退化 (rTSD) 是多发性硬化症 (MS) 后视觉通路损伤的已知后果.
- 这种变性表现为半黄斑性结节细胞内状层 (GCIPL) 稀薄和对侧视野损失.
- 偏磁边缘病变 (PRL) 是MS中与活性炎症相关的特定MRI发现.
研究的目的:
- 在MS患者 (pwMS) 中调查rTSD,PRL和纵向视力障碍之间的关联.
- 利用一种基于光连贯断层扫描 (OCT) 的新型生物标志物来量化rTSD.
- 确定rTSD的预测因子及其在pwMS中的进展.
主要方法:
- 使用OCT开发的定量rTSD指数用于测量半球GCIPL不对称性.
- 用于识别MRI和临床预测基线rTSD的一般化线性模型.
- 混合效应线性回归模型用于评估rTSD的纵向变化.
主要成果:
- 与健康和非MS对照相比,PwMS表现出明显更高的rTSD.
- 在光学辐射 (OR) 中的PRL与增加的rTSD和降低的 Hemifield 灵敏度有关.
- 纵向rTSD进展与视觉敏感性恶化和扩大残疾状态量表得分进展的几率增加相关.
结论:
- 在OR中的PRL,非洲裔美国人种族,更长的疾病持续时间和更高的BMI与pwMS中的rTSD有关.
- 渐进性rTSD是MS中视力障碍和临床残疾恶化的重要预测因素.
- 该研究强调了rTSD作为MS进展的生物标志物的临床相关性.
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