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| Item Type: | Article |
|---|---|
| Title: | Obesity is associated with myelin oligodendrocyte glycoprotein antibody-associated disease in acute optic neuritis |
| Creators Name: | Stiebel-Kalish, H. and Rubarth, K. and Shouchane-Blum, K. and Tiosano, A. and Lotan, I. and Hellmann, M.A. and Wilf-Yarkoni, A. and Bialer, O. and Flanagan, E.P. and Pittock, S.J. and Bhatti, M.T. and Schmitz-Hübsch, T. and Paul, F. and Asseyer, S. and Chen, J.J. |
| Abstract: | Optic neuritis (ON) is a frequent presentation at onset of multiple sclerosis (MS), neuromyelitis optica spectrum disorder (NMOSD), and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). The pathophysiology underlying these diseases, especially MOGAD, is still being elucidated. While obesity has been reported to potentially be a risk factor for MS, this has not been explored in NMOSD or MOGAD. We aimed to investigate a possible association between obesity (body mass index [BMI] > 30 kg/m(2)) in patients with MOGAD, aquaporin 4-IgG positive NMOSD (AQP4-IgG+ NMOSD) or MS. In this multicenter non-interventional retrospective study, data was collected from patients with a first ever demyelinating attack of ON subsequently diagnosed with MOGAD (n = 44), AQP4-IgG+ NMOSD (n = 49) or MS (n = 90) between 2005 and 2020. The following data was collected: age, sex, ethnicity, BMI (documented before corticosteroid treatment), and the ON etiology after diagnostic work-up. A mixed model analysis was performed to assess the potential of obesity or BMI to predict MOGAD-ON, and to distinguish MOGAD-ON from AQP4-IgG+ NMOSD-ON and MS-ON. Main outcome measures included BMI in patients with acute ON and subsequent diagnosis of MOGAD, AQP4-IgG+ NMOSD or MS. A higher BMI was significantly associated with a diagnosis of MOGAD-ON (p < 0.001); in MOGAD patients the mean BMI was 31.6 kg/m(2) (standard deviation (SD) 7.2), while the mean BMI was 24.7 kg/m(2) (SD 5.3) in AQP4-IgG+ NMOSD patients, and 26.9 kg/m(2) (SD 6.2) in MS patients. Mixed-effects multinomial logistic regression, adjusted for age and sex, with obesity as a binary variable, revealed that obesity was associated with a higher odds ratio (OR) of a subsequent MOGAD diagnosis (OR 5.466, 95% CI [2.039, 14.650], p = 0.001) in contradistinction with AQP4-IgG+ NMOSD. This study suggests an association between obesity and MOGAD. Our findings require further exploration, but could have significant pathophysiologic implications if confirmed in larger prospective studies. |
| Keywords: | Aquaporin 4, Autoantibodies, Immunoglobulin G, Multiple Sclerosis, Myelin-Oligodendrocyte Glycoprotein, Neuromyelitis Optica, Obesity, Optic Neuritis, Prospective Studies, Retrospective Studies |
| Source: | Scientific Reports |
| ISSN: | 2045-2322 |
| Publisher: | Nature Publishing Group |
| Volume: | 12 |
| Number: | 1 |
| Page Range: | 21312 |
| Date: | 9 December 2022 |
| Additional Information: | Erratum in: Sci Rep 13, 2944 (2023) |
| Official Publication: | https://doi.org/10.1038/s41598-022-21592-8 |
| PubMed: | View item in PubMed |
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