Abstract | OBJECTIVE: METHODS: Live cell-based assays for MOG-Ab ( IgG1 subset) and antibody to aquaporin-4 (AQP4-Ab) were performed in a cohort of 270 adult patients with IDD and 72 controls. Patients were first grouped by positive antibody result as MOG-Ab or AQP4-Ab, and the remainder were grouped by published diagnostic criteria. RESULTS: Seventeen patients with IDD (6.3%) had MOG-Abs and 49 patients (18.1%) had AQP4-Abs; none had both antibodies. The MOG-Ab patients predominantly manifested with isolated symptoms of optic neuritis (83%). One-third of these patients experienced relapses, which involved only the optic nerve, and all relapsed within 1 year of disease onset. At onset, MRI in the MOG-Ab group uniquely demonstrated perineural enhancement, extending to the soft tissues around the optic nerves (33%). Although about 30% of MOG-Ab patients had brain MRI lesions, they had fewer periventricular lesions than the 26 patients with relapsing-remitting multiple sclerosis (MS); none of these lesions were ovoid or perpendicular to the ventricle. Moreover, MOG-Ab patients did not meet the diagnostic criteria for definite neuromyelitis optica (NMO) and had less spinal cord involvement than the AQP4-Ab group. Four patients (23.5%) had poor visual outcomes (<0.2) or paraplegia. CONCLUSIONS: MOG-Abs may be a disease-specific biomarker in adult patients with IDD who have a disease distinct from NMO or MS. The radiologic as well as clinical manifestations of MOG-Ab patients can be useful in their differential diagnosis.
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Authors | Sung-Min Kim, Mark R Woodhall, Ji-Sun Kim, Seong-Joon Kim, Kyung Seok Park, Angela Vincent, Kwang-Woo Lee, Patrick Waters |
Journal | Neurology(R) neuroimmunology & neuroinflammation
(Neurol Neuroimmunol Neuroinflamm)
Vol. 2
Issue 6
Pg. e163
(Dec 2015)
ISSN: 2332-7812 [Print] United States |
PMID | 26516628
(Publication Type: Journal Article)
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