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ABSTRACT
Although recent Genome-Wide Association Studies have identified novel associations for common variants, there has been no comprehensive exome-wide search for low-frequency variants that affect the risk of venous thromboembolism (VTE). We conducted a meta-analysis of 11 studies comprising 8,332 cases and 16,087 controls of European ancestry and 382 cases and 1,476 controls of African American ancestry genotyped with the Illumina HumanExome BeadChip. We used the seqMeta package in R to conduct single variant and gene-based rare variant tests. In the single variant analysis, we limited our analysis to the 64,794 variants with at least 40 minor alleles across studies (minor allele frequency [MAF] ~0.08%). We confirmed associations with previously identified VTE loci, including ABO, F5, F11, and FGA. After adjusting for multiple testing, we observed no novel significant findings in single variant or gene-based analysis. Given our sample size, we had greater than 80% power to detect minimum odds ratios greater than 1.5 and 1.8 for a single variant with MAF of 0.01 and 0.005, respectively. Larger studies and sequence data may be needed to identify novel low-frequency and rare variants associated with VTE risk.
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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: MEDLINE Assunto principal: Análise em Microsséries / Tromboembolia Venosa / Estudo de Associação Genômica Ampla / Sequenciamento de Nucleotídeos em Larga Escala / Exoma Tipo de estudo: Estudo de casos e controles / Revisão sistemática Aspecto clínico: Etiologia Limite: Feminino / Humanos / Masculino Idioma: Inglês Revista: Genet Epidemiol Assunto da revista: Epidemiologia / Genética Médica Ano de publicação: 2019 Tipo de documento: Artigo