Scientific publications

LINGO1 gene analysis in Parkinson's disease phenotypes

Lorenzo-Betancor O, Samaranch L, García-Martín E, Cervantes S, Agúndez JA, Jiménez-Jiménez FJ, Alonso-Navarro H, Luengo A, Coria F, Lorenzo E, Irigoyen J, Pastor P; The Iberian Parkinson's Disease Genetics Study Group Researchers.
Division of Neurosciences, Neurogenetics Laboratory, Center for Applied Medical Research, University of Navarra, Pamplona, Spain; Department of Neurology, Clínica Universidad de Navarra, University of Navarra School of Medicine, Pamplona, Spain

Magazine: Movement Disorders

Date: Mar 1, 2011

Neurology [SP]

Background
Parkinson's disease (PD) and essential tremor (ET) may share some etiopathogenic factors. A genome-wide association study has shown that LINGO1 gene variants are associated with increased risk of ET. We hypothesized that LINGO1 variants could increase susceptibility to PD.

Methods
A large series of PD subjects and healthy controls were genotyped for rs9652490 and rs11856808 LINGO1 single nucleotide polymorphisms (SNPs). Results: We found an increased frequency of the rs11856808(T/T) genotype in PD compared with controls (odds ratio = 1.46; corrected P value = 0.02). A recessive genetic model was the best fit for rs11856808 influence on PD (recessive gene action test: corrected P value = 0.01). Stratification analysis showed that rs11856808(T/T) genotype frequency was higher in the tremor-dominant PD and the classical PD (C-PD) subgroups (recessive gene action test for the C-PD subgroup: corrected P value = 0.004).

Discussion
Our results indicate that LINGO1 variants could increase risk of PD, specifically those presenting the non-rigid-akinetic phenotypes, which suggests that LINGO1 may have a role in the etiology of tremor in PD at least in the Spanish population.

CITATION Mov Disord. 2011 Mar;26(4):722-727. doi: 10.1002/mds.23452

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