Journal
ANNALS OF CLINICAL AND TRANSLATIONAL NEUROLOGY
Volume 9, Issue 7, Pages 1090-1094Publisher
WILEY
DOI: 10.1002/acn3.51595
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Funding
- Cambridge NIHR Biomedical Centre and Clinical Research Facility
- UK MS Society
- Projekt DEAL
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Remyelination efficiency decreases with age, particularly in patients with multiple sclerosis. Bexarotene, a retinoid-X receptor agonist, only shortens the visual evoked potential latency in patients under 42 years old and increases the magnetization transfer ratio of deep gray matter lesions in those under 43 years old.
Remyelination efficiency declines with advancing age in animal models, but this has been harder to demonstrate in people with multiple sclerosis. We show that bexarotene, a putatively remyelinating retinoid-X receptor agonist, shortened the visual evoked potential latency in patients with chronic optic neuropathy aged under 42 years only (with the effect diminishing by 0.45 ms per year of age); and increased the magnetization transfer ratio of deep gray matter lesions in those under 43 years only. Addressing this age-related decline in human remyelination capacity will be an important step in the development of remyelinating therapies that work across the lifespan.
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