Alpha-synuclein repeat variants and survival in Parkinson's disease

Sun Ju Chung, Joanna M Biernacka, Sebastian M Armasu, Kari Anderson, Roberta Frigerio, Jan O Aasly, Grazia Annesi, Anna Rita Bentivoglio, Laura Brighina, Marie-Christine Chartier-Harlin, Stefano Goldwurm, Georgios Hadjigeorgiou, Barbara Jasinska-Myga, Beom Seok Jeon, Yun Joong Kim, Rejko Krüger, Suzanne Lesage, Katerina Markopoulou, George Mellick, Karen E MorrisonAndreas Puschmann, Eng-King Tan, David Crosiers, Jessie Theuns, Christine Van Broeckhoven, Karin Wirdefeldt, Zbigniew K Wszolek, Alexis Elbaz, Demetrius M Maraganore, Genetic Epidemiology Of Parkinson's Disease (GEO-PD) Consortium, Karen Morrison

    Research output: Contribution to journalArticlepeer-review

    11 Citations (Scopus)

    Abstract

    OBJECTIVES: To determine whether α-synuclein dinucleotide repeat (REP1) genotypes are associated with survival in Parkinson's disease (PD).

    METHODS: Investigators from the Genetic Epidemiology of Parkinson's Disease Consortium provided REP1 genotypes and baseline and follow-up clinical data for cases. The primary outcome was time to death. Cox proportional hazards regression models were used to assess the association of REP1 genotypes with survival.

    RESULTS: Twenty-one sites contributed data for 6,154 cases. There was no significant association between α-synuclein REP1 genotypes and survival in PD. However, there was a significant association between REP1 genotypes and age at onset of PD (hazard ratio: 1.06; 95% confidence interval: 1.01-1.10; P value = 0.01).

    CONCLUSIONS: In our large consortium study, α-synuclein REP1 genotypes were not associated with survival in PD. Further studies of α-synuclein's role in disease progression and long-term outcomes are needed.

    Original languageEnglish
    Pages (from-to)1053-7
    Number of pages5
    JournalMovement Disorders
    Volume29
    Issue number8
    DOIs
    Publication statusPublished - Jul 2014

    Bibliographical note

    © 2014 International Parkinson and Movement Disorder Society.

    Keywords

    • Adult
    • Age of Onset
    • Aged
    • Aged, 80 and over
    • Dinucleotide Repeats
    • Female
    • Gene Frequency
    • Genetic Association Studies
    • Genetic Predisposition to Disease
    • Genotype
    • Humans
    • International Cooperation
    • Male
    • Middle Aged
    • Parkinson Disease
    • Survival
    • alpha-Synuclein

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