Blood-Based Biomarkers for Identifying Disease Activity in AQP4-IgG–Positive Neuromyelitis Optica Spectrum Disorder
This longitudinal cohort study determines the optimal timing for assessing serum glial fibrillary acidic protein and serum neurofilament light chain and establishes cutoff values differentiating between attack and remission phases in patients with aquaporin-4 antibody (AQP4-IgG)–positive…