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An assessment of compositional methods for the analysis of DNA methylation-based deconvolution estimates
Journal article   Peer reviewed

An assessment of compositional methods for the analysis of DNA methylation-based deconvolution estimates

Alexander Alsup, Emily Nissen, Lucas A. Salas, Annette M. Molinaro, Alexander Reiner, Simin Liu, Tracy E. Madsen, Longjian Liu, Paul L. Auer, Brock C. Christensen, …
Epigenomics, v 16(15-16), pp 1067-1080
2024
PMID: 39093129
url
https://pmc.ncbi.nlm.nih.gov/articles/PMC11418214/pdf/IEPI_16_2379242.pdfView
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Abstract

Genetics & Heredity Life Sciences & Biomedicine Science & Technology
DNA methylation (DNAm)-based deconvolution estimates contain relative data, forming a composition, that standard methods (testing directly on cell proportions) are ill-suited to handle. In this study we examined the performance of an alternative method, analysis of compositions of microbiomes (ANCOM), for the analysis of DNAm-based deconvolution estimates. We performed two different simulation studies comparing ANCOM to a standard approach (two sample t-test performed directly on cell proportions) and analyzed a real-world data from the Women's Health Initiative to evaluate the applicability of ANCOM to DNAm-based deconvolution estimates. Our findings indicate that ANCOM can effectively account for the compositional nature of DNAm-based deconvolution estimates. ANCOM adequately controls the false discovery rate while maintaining statistical power comparable to that of standard methods.

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Collaboration types
Domestic collaboration
Web of Science research areas
Genetics & Heredity
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