Post genome-wide association analysis: dissecting computational pathway/network-based approaches.
Volume: 20
Issue: 2
Year of Publication: 2020
Abstract summary
Over thousands of genetic associations to diseases have been identified by genome-wide association studies (GWASs), which conceptually is a single-marker-based approach. There are potentially many uses of these identified variants, including a better understanding of the pathogenesis of diseases, new leads for studying underlying risk prediction and clinical prediction of treatment. However, because of inadequate power, GWAS might miss disease genes and/or pathways with weak genetic or strong epistatic effects. Driven by the need to extract useful information from GWAS summary statistics, post-GWAS approaches (PGAs) were introduced. Here, we dissect and discuss advances made in pathway/network-based PGAs, with a particular focus on protein-protein interaction networks that leverage GWAS summary statistics by combining effects of multiple loci, subnetworks or pathways to detect genetic signals associated with complex diseases. We conclude with a discussion of research areas where further work on summary statistic-based methods is needed.Study Outcome
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Statistics
Citations : Li MJ, Liu Z, Wang P.. GWASdb v2: an update database for human genetic variants identified by genome-wide association studies. Nucleic Acids Res 2016;44(D1):D869–76.Authors : 5
Identifiers
Doi : 10.1093/bib/bby035SSN : 1477-4054