The risk of developing multiple sclerosis (MS) is nearly four times as high for women as it is for men. And that relative risk has increased sharply over time. In 1955, women were only slightly more likely than men to develop MS. A research team at the University of Toronto and the Oklahoma Medical Research Foundation (OMRF) has gained new insights into possible causes for this increasing disparity.

Antibiotic treatment that changed the lung microbiome affected the activity of microglia, the brain-specific version of macrophages, and could prevent the development of the multiple sclerosis model experimental autoimmune encephalitis in mice.