LRRK2 A419V variant is a risk factor for Parkinson's disease in Asian population

Neurobiol Aging. 2015 Oct;36(10):2908.e11-5. doi: 10.1016/j.neurobiolaging.2015.07.012. Epub 2015 Jul 11.


Recently, LRRK2 A419V (rs34594498) was reported associating with Parkinson's disease (PD) in Asian population; yet the conclusion is still unobvious. We conducted a case-control study to determine the potential associations between A419V and PD in Chinese population. Five hundred PD patients and 574 health controls were genotyped. Our results showed, A419V has a significantly higher frequency among PD patients than the controls (p = 0.025, odds ratio [OR] = 2.57, 95% confidence interval [CI] [1.13-5.86]), especially in early-onset PD (p = 0.027, OR = 10.40, 95% CI [1.31-82.89]). And PD patients who carried A419V have a lower Minimum-Mental State Examination scores than PD patients who did not (p = 0.04). We also conducted a meta-analysis on A419V. In Asian population, A419V was detected at a significantly higher frequency among PD patients in contrast to controls: Z = 2.47, p = 0.01, OR = 2.11, 95% CI [1.17-3.82]. When only considering the Chinese population, the difference was more obvious with Z = 3.41, p = 0.0007, OR = 2.07, 95% CI [1.36-3.14]. The results suggest LRRK2 A419V appears to be a risk factor for PD in Asian, especially in early-onset patients. Finally, larger sample with centering on young or cognitive impairment PD patients in Asian would be preferable for further confirmation.

Keywords: A419V; Cognitive impairment; LRRK2; Parkinson's disease; rs34594498.

Publication types

  • Meta-Analysis
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Asian People
  • Case-Control Studies
  • Databases, Bibliographic
  • Female
  • Genetic Association Studies*
  • Genetic Variation / genetics*
  • Humans
  • Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
  • Male
  • Middle Aged
  • Neuropsychological Tests
  • Parkinson Disease / genetics*
  • Parkinson Disease / psychology
  • Protein Serine-Threonine Kinases / genetics*
  • Risk Factors
  • Young Adult


  • LRRK2 protein, human
  • Leucine-Rich Repeat Serine-Threonine Protein Kinase-2
  • Protein Serine-Threonine Kinases