ArticleMultiple sclerosis (Houndmills, Basingstoke, England)2025
Investigating the impact of age on neurodegeneration after optic neuritis in multiple sclerosis using optical coherence tomography.
Article in Multiple sclerosis (Houndmills, Basingstoke, England), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundWhile disability progression in multiple sclerosis (MS) is age-dependent, the exact timing of neuroaxonal degeneration throughout the patient lifespan remains unclear.
objectivesTo investigate the influence of age on retinal neurodegeneration after the first unilateral episode of optic neuritis (ON).
methodsWe measured peripapillary retinal nerve fibre layer (pRNFL) and macular ganglion cell inner plexiform layer (mGCIPL) absolute thickness and intereye differences (IEDs) in 61 MS patients with a single unilateral ON 6-24 months prior (MS-ON) and 61 MS patients without ON history (MS-NON). Participants were 1:1 matched based on age, sex, and Expanded Disability Status Scale (EDSS). Statistical significance was evaluated using mixed linear effects models.
resultsAge and ON status of eyes significantly interacted in predicting absolute pRNFL and mGCIPL thickness (pRNFL: DISCUSSION: Our data show evidence of increased relapse-associated neuroaxonal damage in older individuals. This suggests less neuronal resilience following attacks and implicates age-effects beyond insidious progression. The growing population of older people with MS (pwMS) may be at increased risk of neurodegeneration and permanent disability worsening after acute MS attacks. Longitudinal studies should confirm this.
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