NEUROIMMUNOLOGY OF GUILLAIN BARRE SYNDROME: INSIGHTS INTO MECHANISM AND MANAGEMENT WITH DIAGNOSIS AND CURRENT APPROACHES

Guillain-Barré Syndrome (GBS) is an acute immune-mediated disorder of the peripheral nervous system characterized by rapidly progressive weakness and sensory disturbances. The neuroimmunology of GBS primarily involves molecular mimicry following infections, leading to the production of antiganglioside antibodies, activation of complement pathways, and immune-mediated damage to myelin or axons. Different immunological mechanisms contribute to distinct clinical variants such as acute inflammatory demyelinating polyneuropathy, acute motor axonal neuropathy, and Miller Fisher syndrome. Diagnosis relies on clinical features supported by nerve conduction studies and cerebrospinal fluid analysis, while emerging biomarkers offer promise for early detection. Current management focuses on immunomodulatory therapies including intravenous immunoglobulin and plasma exchange, along with supportive and rehabilitative care. Understanding the underlying immune mechanisms is essential for improving diagnostic accuracy, optimizing treatment strategies, and developing targeted therapies for better patient outcomes.