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© Research
Publication : Neurobiology of aging

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

Member: Claire Leblond
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Neurobiology of aging - 13 Oct 2016

Gan-Or Z, Montplaisir JY, Ross JP, Poirier J, Warby SC, Arnulf I, Strong S, Dauvilliers Y, Leblond CS, Hu MTM, Högl B, Stefani A, Monaca CC, De Cock VC, Boivin M, Ferini-Strambi L, Plazzi G, Antelmi E, Young P, Heidbreder A, Barber TR, Evetts SG, Rolinski M, Dion PA, Desautels A, Gagnon JF, Dupré N, Postuma RB, Rouleau GA

Link to Pubmed [PMID] – 27814994

Neurobiol. Aging 2017 Jan;49:218.e13-218.e15

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.