1000 Genomes-based meta-analysis identifies 10 novel loci for kidney function
- PMID: 28452372
- PMCID: PMC5408227
- DOI: 10.1038/srep45040
1000 Genomes-based meta-analysis identifies 10 novel loci for kidney function
Erratum in
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Corrigendum: 1000 Genomes-based meta-analysis identifies 10 novel loci for kidney function.Sci Rep. 2017 May 26;7:46835. doi: 10.1038/srep46835. Sci Rep. 2017. PMID: 28548086 Free PMC article.
Abstract
HapMap imputed genome-wide association studies (GWAS) have revealed >50 loci at which common variants with minor allele frequency >5% are associated with kidney function. GWAS using more complete reference sets for imputation, such as those from The 1000 Genomes project, promise to identify novel loci that have been missed by previous efforts. To investigate the value of such a more complete variant catalog, we conducted a GWAS meta-analysis of kidney function based on the estimated glomerular filtration rate (eGFR) in 110,517 European ancestry participants using 1000 Genomes imputed data. We identified 10 novel loci with p-value < 5 × 10-8 previously missed by HapMap-based GWAS. Six of these loci (HOXD8, ARL15, PIK3R1, EYA4, ASTN2, and EPB41L3) are tagged by common SNPs unique to the 1000 Genomes reference panel. Using pathway analysis, we identified 39 significant (FDR < 0.05) genes and 127 significantly (FDR < 0.05) enriched gene sets, which were missed by our previous analyses. Among those, the 10 identified novel genes are part of pathways of kidney development, carbohydrate metabolism, cardiac septum development and glucose metabolism. These results highlight the utility of re-imputing from denser reference panels, until whole-genome sequencing becomes feasible in large samples.
Conflict of interest statement
Caroline S Fox became a Merck employee as of Dec 14, 2015 and Audrey Chu became a Merck Employee as of July 18, 2016. The majority of the work related to this manuscript was completed before that. Daniel I Chasman has received grant support for genotyping and analysis in the WGHS. Ingrid B Borecki became employed at Regeneron Pharmaceuticals, Inc. recently, after the majority of the work related to this manuscript was completed.
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References
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- Eckardt K. U. et al. Evolving importance of kidney disease: from subspecialty to global health burden. Lancet 382, 158–69 (2013). - PubMed
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