Used in neuroscience and autoimmune research to quantify Aquaporin-4 protein levels in biological samples such as cerebrospinal fluid and tissue extracts. Widely applied in studies of neuromyelitis optica (NMO), where autoantibodies target AQP-4, enabling researchers to assess disease mechanisms, monitor AQP-4 expression changes, and evaluate therapeutic interventions. The kit supports high-throughput analysis in clinical labs and pharmaceutical development for neuroinflammatory disorders. Also utilized in blood-brain barrier research and astrocyte function studies due to AQP-4’s role in brain water homeostasis.