Journal
EUROPEAN NEUROLOGY
Volume 60, Issue 1, Pages 37-42Publisher
KARGER
DOI: 10.1159/000127978
Keywords
anti-aquaporin 4 antibody; neuromyelitis optica; opticospinal multiple sclerosis; somatosensory-evoked potential; syrinx formation
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Background: We have followed 9 Japanese patients with opticospinal multiple sclerosis (OSMS), some of whom showed longitudinally extensive spinal cord lesions, deep sensory disturbances and resistance to treatment. We investigated the patients for anti-aquaporin 4 (AQP4) antibodies and related this to their neuroimaging, clinical and laboratory features. Methods: We studied the clinical course, neurological findings, cerebrospinal fluid (CSF), and electro-physiological findings, and determined the presence of anti-AQP4 antibody and human leukocyte antigen DPB1 and DRB1 alleles. Results: Five patients (56.6%) had anti-AQP4 antibody. Antibody-positive patients displayed female predominance, longitudinally extensive spinal cord lesions, higher frequency of exacerbations, severe disability, and higher cell counts and total protein content without IgG oligoclonal bands in the CSF. They also showed poor steroid responsiveness and poor therapeutic response to interferon beta(1b). Conclusions: The presence of anti-AQP4 antibodies correlates with clinical severity and poor prognosis in OSMS. Copyright (C) 2008 S. Karger AG, Basel.
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