Annals of Clinical and Translational Neurology (Sep 2023)

HLA in isolated REM sleep behavior disorder and Lewy body dementia

  • Eric Yu,
  • Lynne Krohn,
  • Jennifer A. Ruskey,
  • Farnaz Asayesh,
  • Dan Spiegelman,
  • Zalak Shah,
  • Ruth Chia,
  • Isabelle Arnulf,
  • Michele T. M. Hu,
  • Jacques Y. Montplaisir,
  • Jean‐François Gagnon,
  • Alex Desautels,
  • Yves Dauvilliers,
  • Gian Luigi Gigli,
  • Mariarosaria Valente,
  • Francesco Janes,
  • Andrea Bernardini,
  • Birgit Högl,
  • Ambra Stefani,
  • Abubaker Ibrahim,
  • Anna Heidbreder,
  • Karel Sonka,
  • Petr Dusek,
  • David Kemlink,
  • Wolfgang Oertel,
  • Annette Janzen,
  • Giuseppe Plazzi,
  • Elena Antelmi,
  • Michela Figorilli,
  • Monica Puligheddu,
  • Brit Mollenhauer,
  • Claudia Trenkwalder,
  • Friederike Sixel‐Döring,
  • Valérie Cochen De Cock,
  • Luigi Ferini‐Strambi,
  • Femke Dijkstra,
  • Mineke Viaene,
  • Beatriz Abril,
  • Bradley F. Boeve,
  • Guy A. Rouleau,
  • Ronald B. Postuma,
  • The International LBD Genomics Consortium,
  • Sonja W. Scholz,
  • Ziv Gan‐Or

DOI
https://doi.org/10.1002/acn3.51841
Journal volume & issue
Vol. 10, no. 9
pp. 1682 – 1687

Abstract

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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.