PreprintCited by 120Epigenetics and DNA MethylationGenomics and Chromatin DynamicsGene expression and cancer classification

dmrff: identifying differentially methylated regions efficiently with power and control

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Suderman, Matthew, Staley, James R, French, Robert, Arathimos, Ryan, Simpkin, Andrew, Tilling, Kate·2018·bioRxiv (Cold Spring Harbor Laboratory)

Abstract

A differentially methylated region (DMR) is a genomic region in which DNA methylation is consistently positively or negatively associated with a phenotype or exposure. We demonstrate that existing algorithms for identifying DMRs either fail to consistently control false positive rates (comb-p and DMRcate), suffer from low power (bumphunter) or lack modeling flexibility (seqlm). We introduce a new method, dmrff, that overcomes these shortcomings and can additionally be used to meta-analyze multiple datasets. When applied to investigate associations of age in multiple datasets, dmrff identifies novel DMRs near genes previously linked to age. An R implementation is available on Github (http://github.com/perishky/dmrff).

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  • The comb-p software may have an inflated false-positive rate, so the resulting DMRs need to be interpreted cautiously.

    “However, because the comb-p software may have an inflated false-positive rate [95], the resulting DMRs need to be interpreted cautiously.”

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Research works printed but not linked: 1

  1. Pedersen BS, Schwartz DA, Yang IV, Kechris KJ. Comb-p: software for combining, analyzing, grouping and correcting spatially correlated P-values. Bioinformatics. 2012;28(22):2986-8.

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Authors
Suderman, M., Staley, J. R., French, R., Arathimos, R., Simpkin, A., & Tilling, K.
Affiliations
  • University of Bristol (GB)
  • University Hospital of Wales (GB)
  • National University of Ireland (IE)
Corresponding author
Suderman, Matthew
Venue
bioRxiv (Cold Spring Harbor Laboratory)
Publisher
openRxiv
Published
2018-12-31
OpenAlex
W2907751907
Cited by
120
References
26
Citations by year
2026: 13 · 2025: 16 · 2024: 29 · 2023: 13 · 2022: 20 · 2021: 17 · 2020: 9 · 2019: 3
Type
posted content
Language
en
Open access
Licence
cc-by-nd
Locations
bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion, cc-by-nd)
Funders
  • Medical Research Council (MR/N015428/1, MC_UU_12013_2, MC_UU_12013, MC UU 12013/8, MC_UU_00011/5, MR/M025020/1, ES/N000498/1, MC_UU_12013/9)
  • Biotechnology and Biological Sciences Research Council (BB/P028187/1, BB/I025263/1)
  • Economic and Social Research Council (ES/N000498/1)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Chromatin Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gene expression and cancer classification
Keywords
differentially methylated regions, DNA methylation, false positive rate control, statistical power, meta-analysis, age, epigenetics

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