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

TitleThe dementia-associated APOE ε4 allele is not associated with rapid eye movement sleep behavior disorder.
Publication TypeJournal Article
Year of Publication2017
AuthorsGan-Or, iv Z, Montplaisir JY, Ross JP, Poirier J, Warby SC, Arnulf I, Strong S, Dauvilliers Y, Leblond CS, Hu MTM, Högl B, Stefani A, Monaca CCharley, De Cock VCochen, Boivin M, Ferini-Strambi L, Plazzi G, Antelmi E, Young P, Heidbreder A, Barber TR, Evetts SG, Rolinski M, Dion PA, Desautels A, Gagnon J-F, Dupré N, Postuma RB, Rouleau GA
JournalNeurobiol Aging
Volume49
Pagination218.e13-218.e15
Date Published2017 Jan
ISSN1558-1497
Abstract

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.

DOI10.1016/j.neurobiolaging.2016.10.002
Alternate JournalNeurobiol. Aging
PubMed ID27814994

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