Evidence map›Paper›PMID 41225389›Full record

SynthesisBMC oral health2025

Causal effects of gut microbiota on periodontitis risk: a meta-analysis of Mendelian randomization studies.

Jianfeng Yu, Yuling Zuo, Lina Yang, Qianrong Xu

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Article
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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

4 authors.

Jianfeng YuDepartment of stomatology, Hospital of chengdu university of TCM, Chengdu, Sichuan, 610031, China.
Yuling ZuoDepartment of stomatology, Hospital of chengdu university of TCM, Chengdu, Sichuan, 610031, China.
Lina YangDepartment of stomatology, Hospital of chengdu university of TCM, Chengdu, Sichuan, 610031, China.
Qianrong XuDepartment of stomatology, Hospital of chengdu university of TCM, Chengdu, Sichuan, 610031, China. Chenxin20241208@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the causal relationship between gut microbiota and periodontitis (PD) by synthesizing Mendelian randomization (MR) studies across taxonomic levels.

methodsWe systematically searched five databases to November 2024 for MR studies linking gut microbiota (Order/Family/Genus/Species) to PD. Study-level odds ratios (ORs) were pooled with random-effects models; small-study effects were explored; and multiplicity was controlled with Benjamini-Hochberg false discovery rate (FDR)-within each taxonomic level (primary) and globally across all taxa (sensitivity). Reporting and certainty were appraised using STROBE-MR and a GRADE framework adapted for MR. Meta-analyses used Stata 15.1.

resultsSix MR studies were included. Enterobacterales (OR = 1.30, 95% CI: 1.17-1.44) and Pasteurellales (OR = 1.12, 95% CI: 1.04-1.21) remained significant after within-level FDR. At the genus/species levels, Granulicatella and Prevotella salivae were risk-increasing, whereas Butyricicoccus and Ruminiclostridium 6 were protective (significant within-level FDR; suggestive under global FDR). Across taxa combined, the pooled association indicated increased PD risk (OR = 1.18, 95% CI: 1.11-1.26).

conclusionsThis meta-analysis supports a causal contribution of specific gut taxa to PD risk. Risk-increasing Orders (Enterobacterales, Pasteurellales) and risk-modifying genera/species (Granulicatella, Prevotella salivae; Butyricicoccus, Ruminiclostridium 6) may inform hypothesis-driven prevention and mechanistic studies. PROSPERO: CRD420251128261

Indexed as

Gastrointestinal MicrobiomePeriodontitisHumansMendelian Randomization AnalysisRisk FactorsCausalityGut microbiotaMendelian randomizationMeta-AnalysisMicrobial markersPeriodontitis

Identifiers

PMID41225389
PMCPMC12613846

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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.