‌Protein appears in nearly all body tissues, along with your enzymes, blood, and cerebrospinal fluid (CSF). Healthy CSF has a low amount of protein.‌ If you show symptoms of an infection or nervous ...

A test measuring proteins in spinal fluid may help support the diagnosis of MS, especially in patients whose disease is harder to diagnose.

Despite extensive use of biomarkers in research studies, most Alzheimer’s disease diagnoses in the United States are determined by clinical examination. That may be about to change. The Food and Drug ...