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Publication Detail
LRRK2 Mutations and Asian Disease-Associated Variants in the First Parkinson's Disease Cohort from Kazakhstan.
  • Publication Type:
    Journal article
  • Publication Sub Type:
  • Authors:
    Kaiyrzhanov R, Aitkulova A, Shashkin C, Zharkinbekova N, Rizig M, Zholdybayeva E, Jarmukhanov Z, Akhmetzhanov V, Kaishibayeva G, Khaibullin T, Karimova A, Akshulakov S, Bralov A, Kissamedenov N, Seidinova Z, Taskinbayeva A, Muratbaikyzy A, Houlden H
  • Publication date:
  • Pagination:
  • Journal:
    Parkinsons Dis
  • Volume:
  • Status:
    Published online
  • Country:
    United States
  • Print ISSN:
  • Language:
Background: LRRK2 mutations have emerged as the most prevalent and potentially treatable determinants of Parkinson's disease (PD). Peculiar geographic distribution of these mutations has triggered an interest in genotyping PD cohorts of different ethnic backgrounds for LRRK. Objective: Here, we report on the results of LRRK2 screening in the first Central Asian PD cohort. Methods: 246 PD patients were consecutively recruited by movement disorder specialists from four medical centers in Kazakhstan, and clinicodemographic data and genomic DNA from blood were systematically obtained and shipped to the Institute of Neurology University College London together with DNAs from 200 healthy controls. The cohort was genotyped for five LRRK2 mutations (p.Gly2019Ser, p.Arg1441His, p.Tyr1699Cys, p.Ile2020Thr, and p.Asn1437His) and three East Asian disease-associated variants (p.Gly2385Arg, p.Ala419Val, and p.Arg1628Pro) via Kompetitive allele-specific polymerase chain reaction assay analysis. Results: None of the study subjects carried LRRK2 mutations, whereas the following Asian variants were found with insignificant odds ratios (OR): p.Gly2385Arg (1.2%, minor allele frequency (MAF) 0.007, OR 1.25, p=0.8), p.Ala419Val (3.7%, MAF 0.02, OR 1.5, p=0.8), p.Ala419Val (3.7%, MAF 0.02, OR 1.5. Conclusions: We showed that East Asian LRRK variants could be found in Central Asian populations but their pathogenicity remains to be elucidated in larger PD cohorts.
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