Research output: Contribution to journal › Article › peer-review
A coherent approach for analysis of the Illumina HumanMethylation450 BeadChip improves data quality and performance in epigenome-wide association studies. / Lehne, Benjamin; Drong, Alexander W; Loh, Marie et al.
In: GENOME BIOLOGY, Vol. 16, 37, 15.02.2015.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - A coherent approach for analysis of the Illumina HumanMethylation450 BeadChip improves data quality and performance in epigenome-wide association studies
AU - Lehne, Benjamin
AU - Drong, Alexander W
AU - Loh, Marie
AU - Zhang, Weihua
AU - Scott, William R
AU - Tan, Sian-tsung
AU - Afzal, Uzma
AU - Scott, James
AU - Jarvelin, Marjo-riitta
AU - Elliott, Paul
AU - Mccarthy, Mark I
AU - Kooner, Jaspal S
AU - Chambers, John C
PY - 2015/2/15
Y1 - 2015/2/15
N2 - DNA methylation plays a fundamental role in the regulation of the genome, but the optimal strategy for analysis of genome-wide DNA methylation data remains to be determined. We developed a comprehensive analysis pipeline for epigenome-wide association studies (EWAS) using the Illumina Infinium HumanMethylation450 BeadChip, based on 2,687 individuals, with 36 samples measured in duplicate. We propose new approaches to quality control, data normalisation and batch correction through control-probe adjustment and establish a null hypothesis for EWAS using permutation testing. Our analysis pipeline outperforms existing approaches, enabling accurate identification of methylation quantitative trait loci for hypothesis driven follow-up experiments.
AB - DNA methylation plays a fundamental role in the regulation of the genome, but the optimal strategy for analysis of genome-wide DNA methylation data remains to be determined. We developed a comprehensive analysis pipeline for epigenome-wide association studies (EWAS) using the Illumina Infinium HumanMethylation450 BeadChip, based on 2,687 individuals, with 36 samples measured in duplicate. We propose new approaches to quality control, data normalisation and batch correction through control-probe adjustment and establish a null hypothesis for EWAS using permutation testing. Our analysis pipeline outperforms existing approaches, enabling accurate identification of methylation quantitative trait loci for hypothesis driven follow-up experiments.
U2 - 10.1186/s13059-015-0600-x
DO - 10.1186/s13059-015-0600-x
M3 - Article
VL - 16
JO - GENOME BIOLOGY
JF - GENOME BIOLOGY
SN - 1465-6906
M1 - 37
ER -
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