The dementia-associated APOE ε4 allele is not associated with rapid eye movement sleep behavior disorder

Ziv Gan-Or, Jacques Y Montplaisir, Jay P Ross, Judes Poirier, Simon C Warby, Isabelle Arnulf, Stephanie Strong, Yves Dauvilliers, Claire S Leblond, Michele T M Hu, Birgit Högl, Ambra Stefani, Christelle Charley Monaca, Valérie Cochen De Cock, Michel Boivin, Luigi Ferini-Strambi, Giuseppe Plazzi, Elena Antelmi, Peter Young, Anna HeidbrederThomas R Barber, Samuel G Evetts, Michal Rolinski, Patrick A Dion, Alex Desautels, Jean-François Gagnon, Nicolas Dupré, Ronald B Postuma, Guy A Rouleau

Research output: Contribution to journalArticle (Academic Journal)peer-review

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The present study aimed to examine whether the APOE ε4 allele, associated with dementia with Lewy bodies (DLB), and possibly with dementia in Parkinson's disease (PD), is also associated with idiopathic rapid eye movement sleep behavior disorder (RBD). Two single nucleotide polymorphisms, rs429358 and rs7412, were genotyped in RBD patients (n = 480) and in controls (n = 823). APOE ε4 allele frequency was 0.14 among RBD patients and 0.13 among controls (OR = 1.11, 95% CI: 0.88-1.40, p = 0.41). APOE ε4 allele frequencies were similar in those who converted to DLB (0.14) and those who converted to Parkinson's disease (0.12) or multiple system atrophy (0.14, p = 1.0). The APOE ε4 allele is neither a risk factor for RBD nor it is associated with conversion from RBD to DLB or other synucleinopathies.

Original languageEnglish
Pages (from-to)218.e13-218.e15
Number of pages3
JournalNeurobiology of Aging
Early online date13 Oct 2016
Publication statusPublished - 31 Jan 2017


  • APOE
  • REM sleep behavior disorder
  • Genetics
  • Parkinson's disease
  • dementia with Lewy bodies


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