Evidence map›Paper›PMID 36749410›Full record

Observational studyClinical oral investigations2023

Association between periodontitis and breast cancer: two-sample Mendelian randomization study.

Ming Ding, Zhonghua Zhang, Zhu Chen, Jukun Song, Beichuan Wang, Fuqian Jin

Open access · hybridAbstract readObservational Study
In one paragraph

Observational study in Clinical oral investigations, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 3 pooled it
10.1field-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

33 citing papers in PubMed, 3 syntheses or guidelines pooled it, 46 citations in OpenAlex.

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  19. [A two-sample Mendelian randomization study on the association between temporomandibular disorder and insomnia].Hua xi kou qiang yi xue za zhi = Huaxi kouqiang yixue zazhi = West China journal of stomatology · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 1 country.

Ming DingSchool of Stomatology, Zunyi Medical University, Zunyi, China.
Zhonghua ZhangSchool of Stomatology, Zunyi Medical University, Zunyi, China.
Zhu ChenSchool of Stomatology, Zunyi Medical University, Zunyi, China. zhuchen@gzu.edu.cn.
Jukun SongDepartment of Oral and Maxillofacial Surgery, The Affiliated Stomatological Hospital of Guizhou Medical University, Guiyang, China.
Beichuan WangSchool of Stomatology, Zunyi Medical University, Zunyi, China.
Fuqian JinSchool of Stomatology, Zunyi Medical University, Zunyi, China.
Deyang Stomatological Hospital · CNZunyi Medical University · CNGuiyang Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe purpose of this study was to investigate whether there is a causal relationship between periodontitis and breast cancer by Mendelian randomization analysis. MATERIALS AND

methodsWe performed a two-sample bidirectional Mendelian randomization (MR) analysis using publicly released genome-wide association studies (GWAS) statistics. The inverse-variance weighted (IVW) method was used as the primary analysis. We applied complementary methods, including weighted median, weighted mode, simple mode, MR-Egger regression, and MR-pleiotropy residual sum and outlier (MR-PRESSO) to detect and correct for the effect of horizontal pleiotropy.

resultsIVW MR analysis showed no effect of periodontitis on breast cancer (IVW OR=0.99, P =0.14). Similarly, no significant causal relationship between breast cancer and periodontitis was found in reverse MR analysis (IVW OR=0.95, P =0.83). The results of MR-Egger regression, weighted median, and weighted mode methods were consistent with those of the IVW method. Based on sensitivity analyses, horizontal pleiotropy is unlikely to distort causal estimates.

conclusionsAlthough observational studies have reported an association between periodontitis and breast cancer, the results of our MR analysis do not support a causal relationship between periodontitis and breast cancer. CLINICAL RELEVANCE: Mendelian randomization study can more clearly analyze the causal relationship between periodontitis and breast cancer, in order to provide a certain reference for clinicians and deepen the understanding of the relationship between periodontitis and breast cancer, to explore more possible associations between periodontitis and systemic diseases.

Indexed as

NeoplasmsPeriodontitisGenome-Wide Association StudyHumansMendelian Randomization AnalysisBreast cancerGWASMendelian randomizationPeriodontitis

Identifiers

PMID36749410
PMCPMC10264523
OpenAlexW4319333656

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.