MS activity may vary with seasons – The Chart – CNN.com Blogs
MS activity may vary with seasons – The Chart – CNN.com Blogs
In the spring and summer months, some people with multiple sclerosis are at a two to three times greater risk for disease activity, according to research published Monday in the journal Neurology, the medical journal of the American Academy of Neurology.
The study, led by Dominik Meier, Ph.D. of Brigham and Women’s Hospital, examined MRI screenings and other data taken from 1991 to 1993. This was before the availability of current traditional therapies to modify the course of the disease. 44 people aged 25 to 52 living in Boston participated in the study. They had MRIs weekly to monthly over the course of a year. The researchers also included weather information in their study. MRIs are the primary tools used to monitor the disease progress, as they show the scarring, also called lesions.
“Not only were more lesions found during the spring and summer seasons, our study also found that warmer temperatures and solar radiation were linked to disease activity,” said Meier.