Unsupervised text mining for assessing and augmenting GWAS results

Journal of Biomedical Informatics
Melissa AilemFlorence Demenais

Abstract

Text mining can assist in the analysis and interpretation of large-scale biomedical data, helping biologists to quickly and cheaply gain confirmation of hypothesized relationships between biological entities. We set this question in the context of genome-wide association studies (GWAS), an actively emerging field that contributed to identify many genes associated with multifactorial diseases. These studies allow to identify groups of genes associated with the same phenotype, but provide no information about the relationships between these genes. Therefore, our objective is to leverage unsupervised text mining techniques using text-based cosine similarity comparisons and clustering applied to candidate and random gene vectors, in order to augment the GWAS results. We propose a generic framework which we used to characterize the relationships between 10 genes reported associated with asthma by a previous GWAS. The results of this experiment showed that the similarities between these 10 genes were significantly stronger than would be expected by chance (one-sided p-value<0.01). The clustering of observed and randomly selected gene also allowed to generate hypotheses about potential functional relationships between these genes and ...Continue Reading

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Citations

Feb 9, 2018·BMC Bioinformatics·Jie Zhou, Bo-Quan Fu
Feb 12, 2021·Briefings in Bioinformatics·Mohamed Nadif, François Role

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