These fat-filled brain cells may be making multiple sclerosis worse

Scientists have uncovered a surprising clue that may help explain why multiple sclerosis (MS) progresses rapidly in some people but not others.

In brain tissue from patients with severe MS, researchers found large numbers of “foamy” immune cells packed with fat droplets after absorbing damaged myelin.

These overloaded cells appear to switch from helping repair the brain to fueling ongoing damage and inflammation. ...