Evidence map›Paper›PMID 20042743›Full record

ArticleJournal of dental research2010

Alteration of PTGS2 promoter methylation in chronic periodontitis.

S Zhang, S P Barros, M D Niculescu, A J Moretti, J S Preisser, S Offenbacher

Open access · greenAbstract read
In one paragraph

Article in Journal of dental research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 7% 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

44 citing papers in PubMed, 2 syntheses or guidelines pooled it, 107 citations in OpenAlex.

  1. Pooled it
  2. Epigenetics and periodontics: A systematic review.Medicina oral, patologia oral y cirugia bucal · 2019
    Pooled it
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  10. AmSystems · 2024
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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

6 authors at 2 institutions in 1 country.

S ZhangCenter for Oral and Systemic Diseases, University of North Carolina at Chapel Hill, Durham, 27709, USA.
S P Barros
M D Niculescu
A J Moretti
J S Preisser
S Offenbacher
David H. Murdock Research Institute · USUniversity of North Carolina at Chapel Hill · US

Funding

UNC CLINICAL AND TRANSLATIONAL SCIENCE AWARD: BPCAUL1RR025747 · NCRR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI RUNGE, MARSCHALL S. · 2008 to 2011
$44.6M
Zonisamide in Patients with Neuropathic Pain Associated with Diabetic NeuropathyM01RR000046 · NCRR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JOY, MELANIE S · 1985 to 2008
$38.5M
NCRR NIH HHS M01 RR000046NCRR NIH HHS RR-00046NCRR NIH HHS UL1 RR025747NCRR NIH HHS UL1RR025747
6 · The paper itself

Abstract

Levels of prostaglandin E(2) and the prostaglandin-endoperoxide synthase-2 (PTGS2, or COX-2) increase in actively progressing periodontal lesions, but decrease in chronic disease. We hypothesized that chronic inflammation is associated with altered DNA methylation levels within the PTGS2 promoter, with effects on COX-2 mRNA expression. PTGS2 promoter methylation levels from periodontally inflamed gingival biopsies showed a 5.06-fold increase as compared with non-inflamed samples (p = 0.03), and the odds of methylation in a CpG site in the inflamed gingival group is 4.46 times higher than in the same site in the non-inflamed group (p = 0.016). The level of methylation at -458 bp was inversely associated with transcriptional levels of PTGS2 (RT-PCR) (p = 0.01). Analysis of the data suggests that, in chronically inflamed tissues, there is a hypermethylation pattern of the PTGS2 promoter in association with a lower level of PTGS2 transcription, consistent with a dampening of COX-2 expression in chronic periodontitis. These findings suggest that the chronic persistence of the biofilm and inflammation may be associated with epigenetic changes in local tissues at the biofilm-gingival interface.

Indexed as

AdolescentAdultAgedCase-Control StudiesChronic PeriodontitisCpG IslandsCyclooxygenase 2DNA MethylationFemaleGene Expression Regulation, EnzymologicHumansMaleMiddle AgedPromoter Regions, GeneticRNA, MessengerTranscription, GeneticCyclooxygenase 2PTGS2 protein, humanRNA, Messenger

Identifiers

PMID20042743
PMCPMC3065122
OpenAlexW2134444284

What OpenQuestion holds

Textmetadata
LicenceTDM
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.