Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Meta-Analysis
. 2022 Aug 16;99(7):e698-e710.
doi: 10.1212/WNL.0000000000200699. Epub 2022 May 26.

Genome-wide Association and Meta-analysis of Age at Onset in Parkinson Disease: Evidence From the COURAGE-PD Consortium

Sandeep Grover  1 Ashwin Ashok Kumar Sreelatha  1 Lasse Pihlstrom  1 Cloé Domenighetti  1 Claudia Schulte  1 Pierre-Emmanuel Sugier  1 Milena Radivojkov-Blagojevic  1 Peter Lichtner  1 Océane Mohamed  1 Berta Portugal  1 Zied Landoulsi  1 Patrick May  1 Dheeraj Bobbili  1 Connor Edsall  1 Felix Bartusch  1 Maximilian Hanussek  1 Jens Krüger  1 Dena G Hernandez  1 Cornelis Blauwendraat  1 George D Mellick  1 Alexander Zimprich  1 Walter Pirker  1 Manuela Tan  1 Ekaterina Rogaeva  1 Anthony Lang  1 Sulev Koks  1 Pille Taba  1 Suzanne Lesage  1 Alexis Brice  1 Jean-Christophe Corvol  1 Marie-Christine Chartier-Harlin  1 Eugenie Mutez  1 Kathrin Brockmann  1 Angela B Deutschländer  1 Georges M Hadjigeorgiou  1 Efthimos Dardiotis  1 Leonidas Stefanis  1 Athina Maria Simitsi  1 Enza Maria Valente  1 Simona Petrucci  1 Letizia Straniero  1 Anna Zecchinelli  1 Gianni Pezzoli  1 Laura Brighina  1 Carlo Ferrarese  1 Grazia Annesi  1 Andrea Quattrone  1 Monica Gagliardi  1 Lena F Burbulla  1 Hirotaka Matsuo  1 Yusuke Kawamura  1 Nobutaka Hattori  1 Kenya Nishioka  1 Sun Ju Chung  1 Yun Joong Kim  1 Lukas Pavelka  1 Bart P C van de Warrenburg  1 Bastiaan R Bloem  1 Andrew B Singleton  1 Jan Aasly  1 Mathias Toft  1 Leonor Correia Guedes  1 Joaquim J Ferreira  1 Soraya Bardien  1 Jonathan Carr  1 Eduardo Tolosa  1 Mario Ezquerra  1 Pau Pastor  1 Monica Diez-Fairen  1 Karin Wirdefeldt  1 Nancy L Pedersen  1 Caroline Ran  1 Andrea C Belin  1 Andreas Puschmann  1 Clara Hellberg  1 Carl E Clarke  1 Karen E Morrison  1 Dimitri Krainc  1 Matt J Farrer  1 Rejko Kruger  1 Alexis Elbaz  1 Thomas Gasser  1 Manu Sharma  2 and the Comprehensive Unbiased Risk Factor Assessment for Genetics and Environment in Parkinson's Disease (COURAGE-PD) Consortium
Affiliations
Meta-Analysis

Genome-wide Association and Meta-analysis of Age at Onset in Parkinson Disease: Evidence From the COURAGE-PD Consortium

Sandeep Grover et al. Neurology. .

Abstract

Background and objectives: Considerable heterogeneity exists in the literature concerning genetic determinants of the age at onset (AAO) of Parkinson disease (PD), which could be attributed to a lack of well-powered replication cohorts. The previous largest genome-wide association studies (GWAS) identified SNCA and TMEM175 loci on chromosome (Chr) 4 with a significant influence on the AAO of PD; these have not been independently replicated. This study aims to conduct a meta-analysis of GWAS of PD AAO and validate previously observed findings in worldwide populations.

Methods: A meta-analysis was performed on PD AAO GWAS of 30 populations of predominantly European ancestry from the Comprehensive Unbiased Risk Factor Assessment for Genetics and Environment in Parkinson's Disease (COURAGE-PD) Consortium. This was followed by combining our study with the largest publicly available European ancestry dataset compiled by the International Parkinson Disease Genomics Consortium (IPDGC).

Results: The COURAGE-PD Consortium included a cohort of 8,535 patients with PD (91.9%: Europeans and 9.1%: East Asians). The average AAO in the COURAGE-PD dataset was 58.9 years (SD = 11.6), with an underrepresentation of females (40.2%). The heritability estimate for AAO in COURAGE-PD was 0.083 (SE = 0.057). None of the loci reached genome-wide significance (p < 5 × 10-8). Nevertheless, the COURAGE-PD dataset confirmed the role of the previously published TMEM175 variant as a genetic determinant of the AAO of PD with Bonferroni-corrected nominal levels of significance (p < 0.025): (rs34311866: β(SE)COURAGE = 0.477(0.203), p COURAGE = 0.0185). The subsequent meta-analysis of COURAGE-PD and IPDGC datasets (Ntotal = 25,950) led to the identification of 2 genome-wide significant association signals on Chr 4, including the previously reported SNCA locus (rs983361: β(SE)COURAGE+IPDGC = 0.720(0.122), p COURAGE+IPDGC = 3.13 × 10-9) and a novel BST1 locus (rs4698412: β(SE)COURAGE+IPDGC = -0.526(0.096), p COURAGE+IPDGC = 4.41 × 10-8).

Discussion: Our study further refines the genetic architecture of Chr 4 underlying the AAO of the PD phenotype through the identification of BST1 as a novel AAO PD locus. These findings open a new direction for the development of treatments to delay the onset of PD.

PubMed Disclaimer

Figures

Figure 1
Figure 1. Manhattan Plot of COURAGE-PD Age-at-Onset GWAS
COURAGE-PD = Comprehensive Unbiased Risk Factor Assessment for Genetics and Environment in Parkinson's Disease; GWAS = genome-wide association studies.
Figure 2
Figure 2. Manhattan Plot of the Meta-analysis of COURAGE-PD and IPDGC Age-at-Onset GWAS
COURAGE-PD = Comprehensive Unbiased Risk Factor Assessment for Genetics and Environment in Parkinson's Disease; GWAS = genome-wide association studies; IPDGC = International Parkinson Disease Genomics Consortium.

Similar articles

Cited by

References

    1. Soldner F, Stelzer Y, Shivalila CS, et al. . Parkinson-associated risk variant in distal enhancer of α-synuclein modulates target gene expression. Nature. 2016;533(7601):95-99. - PMC - PubMed
    1. Lill CM. Genetics of Parkinson's disease. Mol Cell Probes. 2016;30(6):386-396. - PubMed
    1. Bloem BR, Okun MS, Klein C. Parkinson's disease. Lancet. 2021;397(10291):2284-2303. - PubMed
    1. Nalls MA, Pankratz N, Lill CM, et al. . Large-scale meta-analysis of genome-wide association data identifies six new risk loci for Parkinson's disease. Nat Genet. 2014;46(9):989-993. - PMC - PubMed
    1. Chang D, Nalls MA, Hallgrímsdóttir IB, et al. . A meta-analysis of genome-wide association studies identifies 17 new Parkinson's disease risk loci. Nat Genet. 2017;49(10):1511-1516. - PMC - PubMed

Publication types