In:
Journal of Neurology, Neurosurgery & Psychiatry, BMJ, Vol. 92, No. 4 ( 2021-04), p. 377-383
Abstract:
Neurological disorders with IgG antibodies against myelin-oligodendrocyte glycoprotein (MOG-IgG) have been increasingly recognised as a new type of neuroinflammatory disorder. Objective The study aimed to identify regional and ethnic differences in clinical profiles of MOG-IgG–associated disorders between East Asian (Japanese) and Caucasian (German) patients. Methods Demographic, clinical and therapeutic data from 68 MOG-IgG–positive adults were collected (Japanese, n=44; German, n=24). Results Age and sex were similar between cohorts, with optic neuritis occurring most frequently at onset (Japanese: 61%; German: 58%). However, Japanese patients had a lower annualised relapse rate (0.4 vs 0.8, p=0.019; no relapse, 64% vs 25%, p=0.002) and lower Expanded Disability Status Scale score at the last visit (1.0 vs 2.0; p = 0.008), despite similar follow-up periods (mean, 73.9 months vs 73.4 months), than those of German patients, respectively. Cerebral syndromes were more common (27% vs 4%; p=0.021) and myelitis less common (21% vs 50%; p=0.012) in Japanese than in German patients, respectively. Japanese patients were more commonly treated with long-term corticosteroids (73%), whereas German patients were more commonly treated with rituximab or other immunosuppressants (63%). Conclusions Among patients with MOG-IgG, Japanese tended to have a monophasic milder disease, whereas the majority of German patients had a relapsing course and more frequent myelitis, findings compatible with neuromyelitis optica spectrum disorder. Although the attack-prevention treatment regimens were considerably different, genetic and environmental factors may be important to determine clinical phenotypes and disease activity.
Type of Medium:
Online Resource
ISSN:
0022-3050
,
1468-330X
DOI:
10.1136/jnnp-2020-324422
Language:
English
Publisher:
BMJ
Publication Date:
2021
detail.hit.zdb_id:
1480429-3
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