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MoDentify: phenotype-driven module identification in metabolomics networks at different resolutions
SUMMARY: Associations of metabolomics data with phenotypic outcomes are expected to span functional modules, which are defined as sets of correlating metabolites that are coordinately regulated. Moreover, these associations occur at different scales, from entire pathways to only a few metabolites; a...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6361241/ https://www.ncbi.nlm.nih.gov/pubmed/30032270 http://dx.doi.org/10.1093/bioinformatics/bty650 |
Sumario: | SUMMARY: Associations of metabolomics data with phenotypic outcomes are expected to span functional modules, which are defined as sets of correlating metabolites that are coordinately regulated. Moreover, these associations occur at different scales, from entire pathways to only a few metabolites; an aspect that has not been addressed by previous methods. Here, we present MoDentify, a free R package to identify regulated modules in metabolomics networks at different layers of resolution. Importantly, MoDentify shows higher statistical power than classical association analysis. Moreover, the package offers direct interactive visualization of the results in Cytoscape. We present an application example using complex, multifluid metabolomics data. Due to its generic character, the method is widely applicable to other types of data. AVAILABILITY AND IMPLEMENTATION: https://github.com/krumsieklab/MoDentify (vignette includes detailed workflow). SUPPLEMENTARY INFORMATION: Supplementary data are available at Bioinformatics online. |
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