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Updated: Jan 24, 2026

Measuring Progressive Neurological Disability in a Mouse Model of Multiple Sclerosis
Published on: November 14, 2016
Long-term disability progression of pediatric-onset multiple sclerosis
Kyla A McKay1, Jan Hillert1, Ali Manouchehrinia2
1From the Department of Clinical Neuroscience (K.A.M., J.H., A.M.), Karolinska Institutet; and Centre for Molecular Medicine (A.M.), Karolinska Hospital, Stockholm, Sweden.
Pediatric-onset multiple sclerosis (MS) patients progress to disability milestones slower but at a younger age than adults. Factors like disease course and relapse rate influence progression in pediatric MS.
Area of Science:
- Neurology
- Clinical Research
- Epidemiology
Background:
- Multiple sclerosis (MS) affects individuals of all ages, with distinct onset groups including pediatric-onset MS (POMS) and adult-onset MS (AOMS).
- Understanding long-term disability progression is crucial for effective management strategies in different MS populations.
Purpose of the Study:
- To evaluate and compare the long-term disability progression between POMS and AOMS.
- To identify factors associated with disability progression in POMS.
Main Methods:
- Retrospective cohort study utilizing prospectively collected data from the Swedish MS Registry.
- Kaplan-Meier analysis and Cox proportional hazards regression were used to compare disability milestones (Expanded Disability Status Scale [EDSS] 3, 4, and 6) between POMS and AOMS.
Main Results:
- A total of 12,482 individuals were analyzed, with 549 classified as POMS.
- POMS patients reached disability milestones later from disease onset but at a younger age compared to AOMS patients.
- Primary progressive course, higher initial relapse rates, and complete remission from the initial relapse were significantly associated with altered disability progression risk in POMS.
Conclusions:
- Pediatric-onset MS exhibits a distinct clinical course compared to adult-onset MS.
- These findings underscore the need for tailored treatment and management approaches for pediatric MS patients.
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