SAN DIEGO – All multiple sclerosis patients taking natalizumab (Tysabri) who were diagnosed with progressive multifocal leukoencephalopathy (PML) before symptoms appeared were still alive a year later ...

Following brain injury, such as stroke, multiple cellular and physiological responses, which have the potential of influencing the extent of tissue damage, are activated. Within a few hours after an ...

BARCELONA, Spain — A quantitative test for antibodies to the JC virus (JCV) stratifies antibody-positive patients with multiple sclerosis (MS) for their risk of contracting progressive multifocal ...

PML stands for progressive multifocal leukoencephalopathy. It’s an aggressive viral disease of the central nervous system. The virus attacks cells that make myelin. Myelin is a fatty substance that ...

New research has confirmed a strong link between four genetic mutations and progressive multifocal leukoencephalopathy (PML), a rare but often fatal brain infection that can be triggered by dozens of ...