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Exploring the influence from whole blood DNA extraction methods on Infinium 450K DNA methylation.
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- Author(s): Hjorthaug HS;Hjorthaug HS; Gervin K; Gervin K; Gervin K; Mowinckel P; Mowinckel P; Munthe-Kaas MC; Munthe-Kaas MC
- Source:
PloS one [PLoS One] 2018 Dec 12; Vol. 13 (12), pp. e0208699. Date of Electronic Publication: 2018 Dec 12 (Print Publication: 2018).- Publication Type:
Journal Article; Research Support, Non-U.S. Gov't- Language:
English - Source:
- Additional Information
- Source: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101285081 Publication Model: eCollection Cited Medium: Internet ISSN: 1932-6203 (Electronic) Linking ISSN: 19326203 NLM ISO Abbreviation: PLoS One Subsets: MEDLINE
- Publication Information: Original Publication: San Francisco, CA : Public Library of Science
- Subject Terms:
- Abstract: Genome-wide DNA methylation studies are becoming increasingly important in unraveling the epigenetic basis of cell biology, aging and human conditions. The aim of the present study was to explore whether different methods for extracting DNA from whole blood can affect DNA methylation outcome, potentially confounding DNA methylation studies. DNA was isolated from healthy blood donors (n = 10) using three different extraction methods (i.e. two automatic extractions methods based on magnetic beads or isopropanol precipitation, and manual organic extraction). DNA methylation was analyzed using the Infinium HumanMethylation450 Bead Chip (Infinium 450K) (n = 30 samples in total), which is a frequently used method in genome-wide DNA methylation analyses. Overall, the different extraction methods did not have a significant impact on the global DNA methylation patterns. However, DNA methylation differences between organic extraction and each of the automated methods were in general larger than differences between the two automated extraction methods. No CpG sites or regions reached genome-wide significance when testing for differential methylation between extraction methods. Although this study is based on a small sample, these results suggest that extraction method is unlikely to confound Infinium 450K methylation analysis in whole blood.
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- Publication Date: Date Created: 20181213 Date Completed: 20190509 Latest Revision: 20200309
- Publication Date: 20240105
- Accession Number: PMC6291135
- Accession Number: 10.1371/journal.pone.0208699
- Accession Number: 30540848
- Source:
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