Studies have suggested that the risk of multiple sclerosis (MS) increases in populations living farther from the equator—meaning less year-round sun exposure and lower blood levels of vitamin D.
In a new study, researchers at Johns Hopkins University, Baltimore, and the University of California, San Francisco, have found that patients’ vitamin D levels are related to disease activity.
Ellen M. Mowry, MD, and her colleagues studied 469 MS patients over five years. The patients had their blood levels of vitamin D measured at the beginning of the study, and they underwent periodic magnetic resonance imaging (MRI) scans to measure disease activity.
People with lower vitamin D levels had more brain lesions and were more likely to have active MS. In the disease...
Posted 6 days 16 hours ago