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Key clinical point: Low fish consumption is associated with an increased risk of developing multiple sclerosis (MS); vitamin D does not mediate this association.
Major finding: Regardless of sun exposure habits, MS risk was higher with low fish consumption, including both lean and fatty fish (odds ratio, 1.2; 95% confidence interval, 1.1-1.4). The mediation analysis revealed that the effect mediated by vitamin D deficiency on this association was very small. A significant interaction was noted between DRB1*15:01 allele and both low sun exposure and low fish consumption.
Study details: The data come from 2 Swedish population-based case-control studies (6,914 patients with MS and 6,590 control participants).
Disclosures: The study was supported by grants from the Swedish Medical Research Council, the Swedish Research Council for Health, Working Life and Welfare, the Swedish Brain Foundation, and the Swedish Society for Medical Research. Dr Olsson reported receiving grants from the Swedish Research Council, the Knut and Alice Wallenberg Foundation, and the Swedish Brain Foundation. Dr Alfredsson reported receiving grants from the Swedish Research Council, the Swedish
Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation.
Citation: Hedström AK et al. Neurol Neuroimmunol Neuroinflamm. 2020 Apr 10. doi: 10.1212/NXI.0000000000000717.
Key clinical point: Low fish consumption is associated with an increased risk of developing multiple sclerosis (MS); vitamin D does not mediate this association.
Major finding: Regardless of sun exposure habits, MS risk was higher with low fish consumption, including both lean and fatty fish (odds ratio, 1.2; 95% confidence interval, 1.1-1.4). The mediation analysis revealed that the effect mediated by vitamin D deficiency on this association was very small. A significant interaction was noted between DRB1*15:01 allele and both low sun exposure and low fish consumption.
Study details: The data come from 2 Swedish population-based case-control studies (6,914 patients with MS and 6,590 control participants).
Disclosures: The study was supported by grants from the Swedish Medical Research Council, the Swedish Research Council for Health, Working Life and Welfare, the Swedish Brain Foundation, and the Swedish Society for Medical Research. Dr Olsson reported receiving grants from the Swedish Research Council, the Knut and Alice Wallenberg Foundation, and the Swedish Brain Foundation. Dr Alfredsson reported receiving grants from the Swedish Research Council, the Swedish
Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation.
Citation: Hedström AK et al. Neurol Neuroimmunol Neuroinflamm. 2020 Apr 10. doi: 10.1212/NXI.0000000000000717.
Key clinical point: Low fish consumption is associated with an increased risk of developing multiple sclerosis (MS); vitamin D does not mediate this association.
Major finding: Regardless of sun exposure habits, MS risk was higher with low fish consumption, including both lean and fatty fish (odds ratio, 1.2; 95% confidence interval, 1.1-1.4). The mediation analysis revealed that the effect mediated by vitamin D deficiency on this association was very small. A significant interaction was noted between DRB1*15:01 allele and both low sun exposure and low fish consumption.
Study details: The data come from 2 Swedish population-based case-control studies (6,914 patients with MS and 6,590 control participants).
Disclosures: The study was supported by grants from the Swedish Medical Research Council, the Swedish Research Council for Health, Working Life and Welfare, the Swedish Brain Foundation, and the Swedish Society for Medical Research. Dr Olsson reported receiving grants from the Swedish Research Council, the Knut and Alice Wallenberg Foundation, and the Swedish Brain Foundation. Dr Alfredsson reported receiving grants from the Swedish Research Council, the Swedish
Research Council for Health Working Life and Welfare, and the Swedish Brain Foundation.
Citation: Hedström AK et al. Neurol Neuroimmunol Neuroinflamm. 2020 Apr 10. doi: 10.1212/NXI.0000000000000717.