Evidence map›Paper›PMID 18848647›Full record

ArticleInternational immunopharmacology2009

Antibody responses to Porphyromonas gingivalis (P. gingivalis) in subjects with rheumatoid arthritis and periodontitis.

Ted R Mikuls, Jeffrey B Payne, Richard A Reinhardt, Geoffrey M Thiele, Eileen Maziarz, Amy C Cannella, V Michael Holers, Kristine A Kuhn, James R O'Dell

Open access · greenAbstract read
In one paragraph

Article in International immunopharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 118 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
118citing papers in PubMed, 4 pooled it
9.9field-weighted citation impact, top 1% 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

118 citing papers in PubMed, 4 syntheses or guidelines pooled it, 271 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Periodontitis and risk of psoriasis: a systematic review and meta-analysis.Journal of the European Academy of Dermatology and Venereology : JEADV · 2017
    Pooled it
  4. Pooled it
  5. Trial
  6. Trial
  7. [Effect of ginsenoside Rb3 on experimental periodontitis in rats].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2025
    Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Neutrophils in Inflammatory Bone Diseases.Current osteoporosis reports · 2024
    Review
  13. Review
  14. Review
  15. Frontiers in immunology · 2023
    Article
  16. Antibodies againstFrontiers in immunology · 2023
    Article
  17. Review
  18. Review
  19. Article
  20. Article

58 more citing papers are in PubMed but not listed here.

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

9 authors at 6 institutions in 1 country.

Ted R MikulsDepartment of Medicine, Nebraska Arthritis Outcomes Research Center (NAORC), University of Nebraska Medical Center and Omaha Veterans Affairs Medical Center, Omaha, NE, USA. tmikuls@unmc.edu
Jeffrey B Payne
Richard A Reinhardt
Geoffrey M Thiele
Eileen Maziarz
Amy C Cannella
V Michael Holers
Kristine A Kuhn
James R O'Dell
University of Nebraska Medical Center · USUniversity of Colorado Denver · USCenter for Rheumatology · USNebraska Hematology-Oncology · USNebraska Medical Center · USOmaha VA Medical Center · US

Funding

RA-Related Autoantibodies in Healthy FDR of RA PatientsR01AR051394 · NIAMS · UNIVERSITY OF COLORADO DENVER · PI NORRIS, JILL M · 2005 to 2011
$3.0M
RA Comorbidity Bone Health in Men and African AmericansK23AR050004 · NIAMS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI MIKULS, TED RICHARD · 2004 to 2008
$498k
Gene-Environment Interactions in RA Autoimmunity and Disease SeverityR03AR054539 · NIAMS · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI MIKULS, TED RICHARD · 2007 to 2009
$218k
NIAMS NIH HHS K23 AR050004NIAMS NIH HHS R01 AR051394NIAMS NIH HHS R03 AR054539
6 · The paper itself

Abstract

unlabelledAntibody titers to P. gingivalis are increased in patients with rheumatoid arthritis and are associated with disease-specific autoimmunity.

backgroundPeriodontitis (PD) has been implicated as a risk factor for rheumatoid arthritis (RA). We sought to characterize antibody titers to P. gingivalis (a pathogen in PD) in subjects with RA, PD, and in healthy controls and to examine their relationship with disease autoantibodies.

methodsP. gingivalis antibody was measured in subjects with RA (n=78), PD (n=39), and in controls (n=40). Group frequencies of bacterial titer elevations were compared using the Chi-square test and antibody titers were compared using non-parametric tests. Correlations of P. gingivalis titer with C-reactive protein (CRP), antibody to cyclic citrullinated peptide (anti-CCP), and rheumatoid factor (RF) were examined in those with RA while CRP and autoantibody concentrations were compared based on seropositivity to P. gingivalis.

resultsAntibody titers to P. gingivalis were highest in PD, lowest in controls, and intermediate in RA (p=0.0003). Elevations in P. gingivalis (titer> or =800) were more common in RA and PD (67% and 77%, respectively) than in controls (40%) (p=0.002). In RA, there were significant correlations with P. gingivalis titer with CRP, anti-CCP-IgM, and -IgG-2. CRP (p=0.006), anti-CCP-IgM (p=0.01) and -IgG2 (p=0.04) concentrations were higher in RA cases with P. gingivalis titers > or =800 compared to cases with titers <800.

conclusionAntibodies to P. gingivalis are more common in RA subjects than controls, although lower than that in PD. Associations of P. gingivalis titers with RA-related autoantibody and CRP concentrations suggests that infection with this organism plays a role in disease risk and progression in RA.

Indexed as

AdultAgedAntibodies, BacterialArthritis, RheumatoidAutoimmunityC-Reactive ProteinFemaleHumansImmunoglobulinsMaleMiddle AgedPeriodontitisPorphyromonas gingivalisRheumatoid FactorYoung AdultAntibodies, BacterialC-Reactive ProteinImmunoglobulinsRheumatoid Factor

Identifiers

PMID18848647
PMCPMC2748386
OpenAlexW2093207947

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.