Evidence map›Paper›PMID 20958339›Full record

ArticleJournal of clinical periodontology2010

Interferon-gamma promoter hypomethylation and increased expression in chronic periodontitis.

Shaoping Zhang, Antonino Crivello, Steven Offenbacher, Antonio Moretti, David W Paquette, Silvana P Barros

Open access · bronzeAbstract read
In one paragraph

Article in Journal of clinical periodontology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
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

44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 100 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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  11. CRISPRJournal of oral microbiology · 2025
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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 1 institution in 1 country.

Shaoping ZhangDepartment of Periodontology, University of North Carolina, Chapel Hill, NC, USA.
Antonino Crivello
Steven Offenbacher
Antonio Moretti
David W Paquette
Silvana P Barros
University 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 RR00046NCRR NIH HHS UL1 RR025747NCRR NIH HHS UL1RR025747
6 · The paper itself

Abstract

aimThe goal of this investigation was to determine whether epigenetic modifications in the IFNG promoter are associated with an increase of IFNG transcription in different stages of periodontal diseases. MATERIALS AND

methodsDNA was extracted from gingival biopsy samples collected from 47 total sites from 47 different subjects: 23 periodontally healthy sites, 12 experimentally induced gingivitis sites and 12 chronic periodontitis sites. Levels of DNA methylation within the IFNG promoter containing six CpG dinucleotides were determined using pyrosequencing technology. Interferon gamma mRNA expression was analysed by quantitative polymerase chain reactions using isolated RNA from part of the biological samples mentioned above.

resultsThe methylation level of all six analysed CpG sites within the IFNG promoter region in the periodontitis biopsies {52% [interquartile range, IQR (43.8%, 63%)]} was significantly lower than periodontally healthy samples {62% [IQR (51.3%, 74%)], p=0.007} and gingivitis biopsies {63% [IQR (55%, 74%)], p=0.02}. The transcriptional level of IFNG in periodontitis biopsies was 1.96-fold and significantly higher than tissues with periodontal health (p=0.04). Although the mRNA level from experimental gingivitis samples exhibited an 8.5-fold increase as compared with periodontally healthy samples, no significant methylation difference was observed in experimental gingivitis sample.

conclusionsA hypomethylation profile within IFNG promoter region is related to an increase of IFNG transcription present in the chronic periodontitis biopsies, while such an increase of IFNG in experimentally induced gingivitis seems independent of promoter methylation alteration.

Indexed as

DNA MethylationAdultAnalysis of VarianceCase-Control StudiesChi-Square DistributionChronic PeriodontitisCpG IslandsFemaleFluorescent Antibody TechniqueGene Expression RegulationGingivitisHumansInterferon-gammaLinear ModelsMaleMiddle AgedInterferon-gamma

Identifiers

PMID20958339
PMCPMC3065115
OpenAlexW1903538181

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.