WKYC-TV | Hits to head may spur brain-damaging immune response Fox News Because the body is not used to seeing this protein in the blood, it may develop antibodies to it. The body produces antibodies to fight what it perceives to be a harmful substance. If these antibodies then find their way back into the brain, they ... Football Concussions May Trigger MS-Like Response in the Brain Head injuries may spark immune system attack Study indicates brain injuries among college football players |