TY - JOUR
T1 - Large-scale assessment of polyglutamine repeat expansions in Parkinson disease
AU - Wang, Lisa
AU - Aasly, Jan O
AU - Annesi, Grazia
AU - Bardien, Soraya
AU - Bozi, Maria
AU - Brice, Alexis
AU - Carr, Jonathan
AU - Chung, Sun J
AU - Clarke, Carl
AU - Crosiers, David
AU - Deutschländer, Angela
AU - Eckstein, Gertrud
AU - Farrer, Matthew J
AU - Goldwurm, Stefano
AU - Garraux, Gaetan
AU - Hadjigeorgiou, Georgios M
AU - Hicks, Andrew A
AU - Hattori, Nobutaka
AU - Klein, Christine
AU - Jeon, Beom
AU - Kim, Yun J
AU - Lesage, Suzanne
AU - Lin, Juei-Jueng
AU - Lynch, Timothy
AU - Lichtner, Peter
AU - Lang, Anthony E
AU - Mok, Vincent
AU - Jasinska-Myga, Barbara
AU - Mellick, George D
AU - Morrison, Karen E
AU - Opala, Grzegorz
AU - Pihlstrøm, Lasse
AU - Pramstaller, Peter P
AU - Park, Sung S
AU - Quattrone, Aldo
AU - Rogaeva, Ekaterina
AU - Ross, Owen A
AU - Stefanis, Leonidas
AU - Stockton, Joanne D
AU - Silburn, Peter A
AU - Theuns, Jessie
AU - Tan, Eng K
AU - Tomiyama, Hiroyuki
AU - Toft, Mathias
AU - Van Broeckhoven, Christine
AU - Uitti, Ryan J
AU - Wirdefeldt, Karin
AU - Wszolek, Zbigniew
AU - Xiromerisiou, Georgia
AU - Yueh, Kuo-Chu
AU - Genetic Epidemiology Of Parkinson's Disease (GEO-PD) Consortium
N1 - © 2015 American Academy of Neurology.
PY - 2015/10/13
Y1 - 2015/10/13
N2 - OBJECTIVES: We aim to clarify the pathogenic role of intermediate size repeat expansions of SCA2, SCA3, SCA6, and SCA17 as risk factors for idiopathic Parkinson disease (PD).METHODS: We invited researchers from the Genetic Epidemiology of Parkinson's Disease Consortium to participate in the study. There were 12,346 cases and 8,164 controls genotyped, for a total of 4 repeats within the SCA2, SCA3, SCA6, and SCA17 genes. Fixed- and random-effects models were used to estimate the summary risk estimates for the genes. We investigated between-study heterogeneity and heterogeneity between different ethnic populations.RESULTS: We did not observe any definite pathogenic repeat expansions for SCA2, SCA3, SCA6, and SCA17 genes in patients with idiopathic PD from Caucasian and Asian populations. Furthermore, overall analysis did not reveal any significant association between intermediate repeats and PD. The effect estimates (odds ratio) ranged from 0.93 to 1.01 in the overall cohort for the SCA2, SCA3, SCA6, and SCA17 loci.CONCLUSIONS: Our study did not support a major role for definite pathogenic repeat expansions in SCA2, SCA3, SCA6, and SCA17 genes for idiopathic PD. Thus, results of this large study do not support diagnostic screening of SCA2, SCA3, SCA6, and SCA17 gene repeats in the common idiopathic form of PD. Likewise, this largest multicentered study performed to date excludes the role of intermediate repeats of these genes as a risk factor for PD.
AB - OBJECTIVES: We aim to clarify the pathogenic role of intermediate size repeat expansions of SCA2, SCA3, SCA6, and SCA17 as risk factors for idiopathic Parkinson disease (PD).METHODS: We invited researchers from the Genetic Epidemiology of Parkinson's Disease Consortium to participate in the study. There were 12,346 cases and 8,164 controls genotyped, for a total of 4 repeats within the SCA2, SCA3, SCA6, and SCA17 genes. Fixed- and random-effects models were used to estimate the summary risk estimates for the genes. We investigated between-study heterogeneity and heterogeneity between different ethnic populations.RESULTS: We did not observe any definite pathogenic repeat expansions for SCA2, SCA3, SCA6, and SCA17 genes in patients with idiopathic PD from Caucasian and Asian populations. Furthermore, overall analysis did not reveal any significant association between intermediate repeats and PD. The effect estimates (odds ratio) ranged from 0.93 to 1.01 in the overall cohort for the SCA2, SCA3, SCA6, and SCA17 loci.CONCLUSIONS: Our study did not support a major role for definite pathogenic repeat expansions in SCA2, SCA3, SCA6, and SCA17 genes for idiopathic PD. Thus, results of this large study do not support diagnostic screening of SCA2, SCA3, SCA6, and SCA17 gene repeats in the common idiopathic form of PD. Likewise, this largest multicentered study performed to date excludes the role of intermediate repeats of these genes as a risk factor for PD.
UR - https://www.scopus.com/pages/publications/84944415009
U2 - 10.1212/WNL.0000000000002016
DO - 10.1212/WNL.0000000000002016
M3 - Article
C2 - 26354989
SN - 0028-3878
VL - 85
SP - 1283
EP - 1292
JO - Neurology
JF - Neurology
ER -