Mutations in the glucocerebrosidase gene are responsible for Chinese patients with Parkinson's disease

Zhe Yu, Ting Wang, Jun Xu, Wei Wang, Guifang Wang, Chao Chen, Lili Zheng, Li Pan, Dianrong Gong, Xueli Li, Huaiqian Qu, Fang Li, Bin Zhang, Weidong Le, Fabin Han

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

Pathological mutations in the glucocerebrosidase gene (GBA) have been suggested to be associated with Parkinson's disease (PD) in various ethnic populations. Most studies on Chinese PD patients have only screened the N370S and L444P mutations in the GBA gene. To investigate the GBA mutations in Chinese population, we performed complete sequencing of the GBA gene in 184 Chinese PD patients and 130 Chinese control individuals. As a result, we identified three novel and nine reported GBA mutations. The novel mutations include 5-bp deletion (c.334-338delCAGAA), L264I and L314V and the nine reported GBA mutations are R163Q, F213I, E326K, S364S, F347L, V375L, L444P, RecNciI and Q497R. The novel 5-bp deletion (CAGAA) produces a short truncated GBA protein of 142 amino acids, which loses major function domains of the 536 amino acids. Our data also reveals that the frequency of GBA mutations within this Chinese PD cohort was 8.7%, which is significantly higher than 1.54% observed in the Chinese control cohort (χ 2 =7.22, P=0.0072; odds ratio (OR)=6.095, 95% confidence interval of OR=1.546-24.030). The most common L444P mutation accounts 2.74%, which confer more genetic risk for PD in this Chinese population. In conclusion, novel and known GBA mutations were identified and were found to be associated to PD in this Chinese population.

Original languageEnglish (US)
Pages (from-to)85-90
Number of pages6
JournalJournal of Human Genetics
Volume60
Issue number2
DOIs
StatePublished - Feb 1 2015

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

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