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Meta-Analysis
. 2017 Sep 20;8(1):611.
doi: 10.1038/s41467-017-00471-1.

Cross-ethnic meta-analysis identifies association of the GPX3-TNIP1 locus with amyotrophic lateral sclerosis

Affiliations
Meta-Analysis

Cross-ethnic meta-analysis identifies association of the GPX3-TNIP1 locus with amyotrophic lateral sclerosis

Beben Benyamin et al. Nat Commun. .

Abstract

Cross-ethnic genetic studies can leverage power from differences in disease epidemiology and population-specific genetic architecture. In particular, the differences in linkage disequilibrium and allele frequency patterns across ethnic groups may increase gene-mapping resolution. Here we use cross-ethnic genetic data in sporadic amyotrophic lateral sclerosis (ALS), an adult-onset, rapidly progressing neurodegenerative disease. We report analyses of novel genome-wide association study data of 1,234 ALS cases and 2,850 controls. We find a significant association of rs10463311 spanning GPX3-TNIP1 with ALS (p = 1.3 × 10-8), with replication support from two independent Australian samples (combined 576 cases and 683 controls, p = 1.7 × 10-3). Both GPX3 and TNIP1 interact with other known ALS genes (SOD1 and OPTN, respectively). In addition, GGNBP2 was identified using gene-based analysis and summary statistics-based Mendelian randomization analysis, although further replication is needed to confirm this result. Our results increase our understanding of genetic aetiology of ALS.Amyotrophic lateral sclerosis (ALS) is a rapidly progressing neurodegenerative disease. Here, Wray and colleagues identify association of the GPX3-TNIP1 locus with ALS using cross-ethnic meta-analyses.

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Conflict of interest statement

The authors declare no competing financial interests.

Figures

Fig. 1
Fig. 1
Manhattan plot of the meta-analysis between European and Chinese GWAS revealed a novel locus, GPX3-TNIP1 (red). Loci previously identified in the largest European GWAS are presented in blue. The p values are from the linear mixed model
Fig. 2
Fig. 2
Regional ALS association plot of the GPX3-TNIP1 locus from the meta-analysis results created using LocusZoom. From the meta-analysis, rs10463311 is the SNP with the strongest association with ALS (p = 1.3 × 10−8). This SNP is replicated in two independent Australian cohorts with combined p = 1.7 × 10−3

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