Evidence map›Paper›PMID 31673077›Full record

ArticleThe ISME journal2020

The subgingival microbiome associated with periodontitis in type 2 diabetes mellitus.

Baochen Shi, Renate Lux, Perry Klokkevold, Michaela Chang, Emma Barnard, Susan Haake, Huiying Li

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 3 pooled it
8.1field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 3 syntheses or guidelines pooled it, 112 citations in OpenAlex.

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  19. Hallmarks of Periodontitis.Current medicinal chemistry · 2025
    Review
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11 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

7 authors at 2 institutions in 1 country.

Baochen ShiDepartment of Molecular and Medical Pharmacology, Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
Renate LuxSection of Periodontics, School of Dentistry, University of California, Los Angeles, CA, USA.
Perry KlokkevoldSection of Periodontics, School of Dentistry, University of California, Los Angeles, CA, USA.
Michaela ChangSection of Periodontics, School of Dentistry, University of California, Los Angeles, CA, USA.
Emma BarnardDepartment of Molecular and Medical Pharmacology, Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
Susan HaakeSection of Periodontics, School of Dentistry, University of California, Los Angeles, CA, USA.
Huiying LiDepartment of Molecular and Medical Pharmacology, Crump Institute for Molecular Imaging, David Geffen School of Medicine, University of California, Los Angeles, CA, USA. huiying@ucla.edu.
University of California, Los Angeles · USInstitute for Molecular Medicine · US

Funding

Metagenomic Study of the Periodontal Microbiome in Healthy and Diabetic SubjectsR01DE021574 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HAAKE, SUSAN KINDER, LI, HUIYING · 2010 to 2013
$2.8M
Molecular signatures of the periodontitis metagenomeRC1DE020298 · NIDCR · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI HAAKE, SUSAN KINDER, LI, HUIYING · 2009 to 2010
$960k
NIDCR NIH HHS R01 DE021574NIDCR NIH HHS RC1 DE020298U.S. Department of Health & Human Services | NIH | National Institute of Dental and Craniofacial Research (NIDCR) R01DE021574U.S. Department of Health & Human Services | NIH | National Institute of Dental and Craniofacial Research (NIDCR) RC1DE020298
6 · The paper itself

Abstract

Type 2 diabetes mellitus (T2DM) is a systemic disease, predisposing patients to other inflammatory conditions including periodontitis. The subgingival microbiome, a key player in periodontitis pathogenesis, is not well characterized in T2DM population. To better understand whether the subgingival microbiome is different between T2DM and systemically healthy, nondiabetic (ND) subjects, we performed a longitudinal analysis of the subgingival microbiome in T2DM patients (n = 15) compared with ND subjects (n = 16). Using metagenomic shotgun sequencing, we investigated the microbiome in the healthy periodontal state, periodontitis state, and resolved state after treatment. We found that in the periodontitis state, the shift in the subgingival microbiome from the healthy state was less prominent in T2DM compared with ND subjects, yet the clinical signs of disease were similar for both. Furthermore, we revealed highly correlated presence of pathogenic species in relative abundance not only in the periodontitis state, but also in the healthy state in T2DM, suggesting an elevated risk of progression to periodontitis in this cohort. We further investigated the functional potentials of the subgingival microbiome and identified a set of microbial marker genes associated with the clinical states. These genes were significantly enriched in 21 pathways, some of which are associated with periodontitis and some potentially link T2DM and periodontitis. This study identified the longitudinal changes of the subgingival microbiome associated with periodontitis in T2DM and suggests that T2DM patients are more susceptible to shifts in the subgingival microbiome toward dysbiosis, potentially due to impaired host metabolic and immune regulation.

Indexed as

MetagenomeAdultBacteriaCase-Control StudiesCoinfectionDiabetes Mellitus, Type 2DysbiosisFemaleGingivaGingival DiseasesHumansLongitudinal StudiesMaleMicrobiotaMiddle AgedMouth

Identifiers

PMID31673077
PMCPMC6976570
OpenAlexW2982701907

What OpenQuestion holds

Textmetadata
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.