Evidence map›Paper›PMID 26090450›Full record

ArticleBioMed research international2015

Global Methylation and Hydroxymethylation in DNA from Blood and Saliva in Healthy Volunteers.

Lode Godderis, Caroline Schouteden, Ali Tabish, Katrien Poels, Peter Hoet, Andrea A Baccarelli, Kirsten Van Landuyt

Open access · hybridAbstract read
In one paragraph

Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
4.7field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

37 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
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  13. NFrontiers in genetics · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 2 countries.

Lode GodderisCentre Environment & Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, 3000 Leuven, Belgium ; IDEWE, External Service for Prevention and Protection at Work, 3001 Heverlee, Belgium.ORCID 0000-0003-4764-8835
Caroline SchoutedenCentre Environment & Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, 3000 Leuven, Belgium.ORCID 0000-0003-1982-677X
Ali TabishCentre Environment & Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, 3000 Leuven, Belgium.
Katrien PoelsCentre Environment & Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, 3000 Leuven, Belgium.ORCID 0000-0003-4397-6831
Peter HoetCentre Environment & Health, Department of Public Health and Primary Care, KU Leuven, Kapucijnenvoer 35/5, 3000 Leuven, Belgium.
Andrea A BaccarelliDepartment of Environmental Health, Landmark Center, Suite 415 West, P.O. Box 15677, 401 Park Drive, Boston, MA 02215, USA.
Kirsten Van LanduytDepartment of Oral Health Sciences, KU Leuven BIOMAT, 3000 Leuven, Belgium.
KU Leuven · BECenter for Environmental Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aims. We describe a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to quantify and compare simultaneously global methylation and hydroxymethylation in human DNA of different tissues. Materials and Methods. Blood and saliva DNA from fourteen volunteers was processed for epigenetic endpoints using LC-MS/MS and PCR-pyrosequencing technology. Results. Global DNA methylation was significantly lower in saliva (mean 4.61% ±  0.80%), compared to blood samples (5.70% ± 0.22%). In contrast, saliva (0.036% ± 0.011%) revealed significantly higher hydroxymethylation compared to blood samples (mean 0.027% ± 0.004%). Whereas we did not find significant correlations for both epigenetic measures between the tissues, a significant association was observed between global methylation and global hydroxymethylation in saliva DNA. Neither LINE-1 nor Alu elements of blood and saliva correlated, nor were they correlated with the DNA hydroxymethylation of blood or saliva, respectively. Conclusion. Global DNA methylation and hydroxymethylation of cytosine can be quantified simultaneously by LC-MS/MS. Saliva DNA cannot be considered as a surrogate for blood DNA to study epigenetic endpoints.

Indexed as

SalivaAdultAlu ElementsDNADNA MethylationFemaleHealthy VolunteersHumansLong Interspersed Nucleotide ElementsMaleTandem Mass SpectrometryDNA

Identifiers

PMID26090450
PMCPMC4450276
OpenAlexW1593440370

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.