Anti-MAG Peripheral Neuropathy: Understanding a Rare Autoimmune Nerve Disorder
Anti-Myelin-Associated Glycoprotein (Anti-MAG) peripheral neuropathy is a rare autoimmune neurological disorder in which abnormal Immunoglobulin M (IgM) antibodies mistakenly attack components of the peripheral nervous system. These antibodies target Myelin-Associated Glycoprotein (MAG), a protein essential for maintaining healthy nerve insulation, resulting in progressive nerve damage that can cause numbness, tingling, tremors, balance difficulties, and impaired mobility. The disorder is most commonly associated with monoclonal gammopathies, particularly Monoclonal Gammopathy of Undetermined Significance (MGUS), although it can also occur in association with Waldenström's macroglobulinemia and other low-grade B-cell disorders. Although Anti-MAG neuropathy is considered rare, it is one of the most recognized antibody-mediated peripheral neuropathies and requires specialized diagnostic testing and treatment approaches distinct from other autoimmune nerve disorders. What Causes Anti-...