Key multiple sclerosis models reveal different damage timelines, offering roadmap for myelin repair studies

More than 1 million people across the United States live with multiple sclerosis (MS), a disease that affects the brain, optic nerves, and spine. MS is an unpredictable disorder, with symptoms—such as overwhelming fatigue, muscle spasms, and vision problems—flaring up and then subsiding over days, months, or even years. To identify new treatment paradigms for MS, studying the underlying damage to the nervous system is key.