Multiple sclerosis (MS) is a condition that affects your brain and spinal cord. It damages the myelin sheath, the tissue that surrounds and protects your nerve cells. This damage blocks or slows down ...

What Is Late-Onset Multiple Sclerosis? When you have multiple sclerosis (MS), your immune system attacks nerve cells and fibers called axons in your brain. When this happens, your brain can’t send ...

Welcome to Diagnosis Diaries. Throughout this series, we'll share real stories from real people about receiving a diagnosis for a chronic condition. Share on Pinterest Illustration by Alyssa Kiefer It ...

In the human brain, neurofilament light chain (NfL, shown in brown) is seen in brain cells and the neural wires that connect them. UCSF researchers found NfL in the bloodstream of patients who would ...

Multiple sclerosis is an autoimmune disease in which immune cells attack and destroy the protective myelin sheaths that surround nerve fibres, leading to neurological disturbances. Lymph node-like ...

The CD40–CD40L costimulatory pathway regulates adaptive and innate immune responses and has been implicated in the pathogenesis of multiple sclerosis. Frexalimab is a second-generation anti-CD40L ...