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Seasonal distribution of attacks in aquaporin-4 antibody disease and myelin-oligodendrocyte antibody disease. | LitMetric

AI Article Synopsis

Article Abstract

Background: Seasonal variation in incidence and exacerbations has been reported for neuroinflammatory conditions such as multiple sclerosis and acute disseminated encephalomyelitis (ADEM). It is unknown whether seasonality also influences aquaporin-4 antibody (AQP4-Ab) disease and myelin-oligodendrocyte antibody (MOG-Ab) disease.

Objective: We examined the seasonal distribution of attacks in AQP4-Ab disease and MOG-Ab disease.

Methods: Observational study using data prospectively recorded from three cohorts in the United Kingdom.

Results: There was no clear seasonal variation in AQP4-Ab or MOG-Ab attacks for either the onset attack nor subsequent relapses. In both groups, the proportion of attacks manifesting with each of the main phenotypes (optic neuritis, transverse myelitis, ADEM/ADEM-like) appeared stable across the year. This study is the first to examine seasonal distribution of MOG-Ab attacks and the largest in AQP4-Ab disease so far.

Conclusion: Lack of seasonal distribution in AQP4-Ab and MOG-Ab disease may argue against environment factors playing a role in the aetiopathogenesis of these conditions.

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Source
http://dx.doi.org/10.1016/j.jns.2020.116881DOI Listing

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