2023
HLA in isolated REM sleep behavior disorder and Lewy body dementia
Authors:
Yu, E., Krohn, L., Ruskey, J. A., Asayesh, F., Spiegelman, D., Shah, Z., Chia, R., Arnulf, I., Hu, M. T. M., Montplaisir, J. Y., Gagnon, J. F., Desautels, A., Dauvilliers, Y., Gigli, G. L., Valente, M., Janes, F., Bernardini, A., Högl, B., Stefani, A., Ibrahim, A., … Gan-Or, Z.
Journal:
Annals of Clinical and Translational Neurology
Abstract
Synucleinopathies-related disorders such as Lewy body dementia (LBD) and isolated/idiopathic REM sleep behavior disorder (iRBD) have been associated with neuroinflammation. In this study, we examined whether the human leukocyte antigen (HLA) locus plays a role in iRBD and LBD. In iRBD, HLA-DRB1*11:01 was the only allele passing FDR correction (OR = 1.57, 95% CI = 1.27-1.93, p = 2.70e-05). We also discovered associations between iRBD and HLA-DRB1 70D (OR = 1.26, 95%CI = 1.12-1.41, p = 8.76e-05), 70Q (OR = 0.81, 95%CI = 0.72-0.91, p = 3.65e-04) and 71R (OR = 1.21, 95%CI = 1.08-1.35, p = 1.35e-03). Position 71 (pomnibus = 0.00102) and 70 (pomnibus = 0.00125) were associated with iRBD. Our results suggest that the HLA locus may have different roles across synucleinopathies.
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