Evidence map›Paper›PMID 33368493›Full record

ArticleJournal of clinical periodontology2021

Oxidative stress links periodontal inflammation and renal function.

Praveen Sharma, Anthony Fenton, Irundika H K Dias, Brenda Heaton, Caroline L R Brown, Amneet Sidhu, Mutahir Rahman, Helen R Griffiths, Paul Cockwell, Charles J Ferro and 2 more

Open access · hybridAbstract read
In one paragraph

Article in Journal of clinical periodontology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
5.6field-weighted citation impact, top 3% 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

34 citing papers in PubMed, 60 citations in OpenAlex.

  1. Review
  2. [Effect of pioglitazone on periodontitis-related renal injury in mice and its relationship with Klotho].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2026
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  9. Oral dysbiosis initiates periodontal disease in experimental kidney disease.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
    Article
  10. Review
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  16. The Molecular Comorbidity Network of Periodontal Disease.International journal of molecular sciences · 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

12 authors at 5 institutions in 2 countries.

Praveen SharmaPeriodontal Research Group, School of Dentistry, University of Birmingham and Birmingham Community Healthcare Trust, Birmingham, UK.ORCID 0000-0001-6435-4842
Anthony FentonDepartment of Nephrology, University Hospital Birmingham, Birmingham, UK.
Irundika H K DiasAston Medical School, Aston University, Birmingham, UK.
Brenda HeatonDepartment of Health Policy and Health Services Research, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA, USA.ORCID 0000-0002-3097-4717
Caroline L R BrownAston Medical School, Aston University, Birmingham, UK.
Amneet SidhuPeriodontal Research Group, School of Dentistry, University of Birmingham and Birmingham Community Healthcare Trust, Birmingham, UK.
Mutahir RahmanPeriodontal Research Group, School of Dentistry, University of Birmingham and Birmingham Community Healthcare Trust, Birmingham, UK.
Helen R GriffithsSwansea University, Singleton Park, Swansea, UK.
Paul CockwellDepartment of Nephrology, University Hospital Birmingham, Birmingham, UK.
Charles J FerroDepartment of Nephrology, University Hospital Birmingham, Birmingham, UK.
Iain L ChapplePeriodontal Research Group, School of Dentistry, University of Birmingham and Birmingham Community Healthcare Trust, Birmingham, UK.ORCID 0000-0003-2697-7082
Thomas DietrichPeriodontal Research Group, School of Dentistry, University of Birmingham and Birmingham Community Healthcare Trust, Birmingham, UK.
Birmingham Community Healthcare NHS Trust · GBNIHR Surgical Reconstruction and Microbiology Research Centre · GBAston University · GBBoston University · USSwansea University · GB

Funding

Department of Health DRF-2014-07-109
6 · The paper itself

Abstract

aimsPatients with chronic kidney disease (CKD) are also susceptible to periodontitis. The causal link between periodontitis and CKD may be mediated via systemic inflammation/oxidative stress. Using structural equation modelling (SEM), this cross-sectional study aimed to explore the causal relationship between periodontal inflammation (PI) and renal function. MATERIALS AND

methodsBaseline data on 770 patients with stage 3-5 (pre-dialysis) CKD from an ongoing cohort study were used. Detailed, bioclinical data on PI and renal function, as well as potential confounders and mediators of the relationship between the two, were collected. SEMs of increasing complexity were created to test the causal assumption that PI affects renal function and vice versa.

resultsStructural equation modelling confirmed the assumption that PI and renal function are causally linked, mediated by systemic oxidative stress. The magnitude of this effect was such that a 10% increase in PI resulted in a 3.0% decrease in renal function and a 10% decrease in renal function resulted in a 25% increase in PI.

conclusionsPeriodontal inflammation represents an occult source of oxidative stress in patients with CKD. Further clinical studies are needed to confirm whether periodontal therapy, as a non-pharmacological approach to reducing systemic inflammatory/oxidative stress burden, can improve outcomes in CKD.

Indexed as

PeriodontitisRenal Insufficiency, ChronicCohort StudiesCross-Sectional StudiesHumansInflammationOxidative Stresschronic kidney diseaseinflammationoxidative stressperiodontitisstructural equation modelling

Identifiers

PMID33368493
PMCPMC7986430
OpenAlexW3114609105

What OpenQuestion holds

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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.