Evidence map›Paper›PMID 42453986›Full record

ReviewFrontiers in cellular and infection microbiology2026

A scientometric analysis of research related to the 'oral-placental axis' hypothesis: current status, hotspots, and future directions.

Beiying Zhang, Zhouhui Yun, Yi Yuan, Lijie Li, Zhihui Xiong

Abstract readReview
In one paragraph

Review in Frontiers in cellular and infection microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Beiying ZhangStomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Hangzhou, China.
Zhouhui YunObstetrical Department, Zhejiang Hospital, Hangzhou, China.
Yi YuanObstetrical Department, Zhejiang Hospital, Hangzhou, China.
Lijie LiObstetrical Department, Zhejiang Hospital, Hangzhou, China.
Zhihui XiongObstetrical Department, Zhejiang Hospital, Hangzhou, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oral diseases and placental disorders are closely associated with adverse pregnancy outcomes, and accumulating evidence supports their crosstalk that constitutes the "oral-placental axis". This study integrated scientometric and bioinformatic approaches to systematically analyze global research trends, collaboration networks, research hotspots, and core molecular-microbial mechanisms of the oral-placental axis covering the period from 2016 to 2025. A total of 196 eligible publications were retrieved from the Web of Science Core Collection, Scopus, and PubMed. Bibliometric visualization was performed using VOSviewer, CiteSpace, and R-bibliometrix, and bioinformatic analysis was conducted to identify shared genes, signaling pathways, and microbial links between oral and placental diseases. The results revealed an annual publication growth rate of 5.03%, with the United States, China, and Australia as major contributing countries, the University of Queensland as the leading institution, and Gomez-Arango Luisa F. and Nitert Marloes Dekker as the most influential authors. Core keywords included preterm birth, periodontal diseases, gestational diabetes mellitus, and oral microbiome, reflecting a research shift from phenotypic association to mechanistic exploration such as microbial vertical transmission and inflammatory signaling. Mechanistic analyses identified shared hub genes (e.g., KRT19, ADAMDEC1, AQP9, SPAG4, PLAT) and key pathways, predominantly primary immunodeficiency and complement and coagulation cascades. Pathogenic bacteria including

Indexed as

BibliometricsMouthMouth DiseasesPlacentaPlacenta DiseasesComputational BiologyFemaleHumansMicrobiotaPeriodontal DiseasesPregnancyPregnancy Outcomeadverse pregnancy outcomesconceptual evolutionknowledge graphmolecular mechanismsoral-placental axisperiodontal diseasesresearch trendsscientometrics

Identifiers

PMID42453986
PMCPMC13364982

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.