Evidence map›Paper›PMID 39652259›Full record

SynthesisBreast cancer (Tokyo, Japan)2025

Gut microbiota and breast cancer: systematic review and meta-analysis.

Guilherme Gamba, Tamy Colonetti, Maria Laura Rodrigues Uggioni, Laura Uggioni Elibio, Eduarda Letícia Balbinot, Rebeca Heinzen, Ana Cristina Lacerda Macedo, Antonio José Grande, Maria Inês da Rosa

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Breast cancer (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. The dialogue between breast cancer and microorganisms.Frontiers in cellular and infection microbiology · 2026
    Review
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
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

9 authors.

Guilherme GambaLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.
Tamy ColonettiLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.
Maria Laura Rodrigues UggioniLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.ORCID http://orcid.org/0000-0001-8883-287X
Laura Uggioni ElibioLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.
Eduarda Letícia BalbinotLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.
Rebeca HeinzenUniversidade do Sul de Santa Catarina, Florianópolis, SC, Brazil.
Ana Cristina Lacerda MacedoLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil.
Antonio José GrandeLaboratory of Evidence-Based Practice, Universidade Estadual do Mato Grosso do Sul, Dourados, MS, Brazil.
Maria Inês da RosaLaboratory of Translational Biomedicine, Universidade do Extremo Sul Catarinense, Criciuma, SC, 88806-000, Brazil. mir@unesc.net.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe gastrointestinal microbiota can modulate systemic estrogens, potentially influencing estrogen-induced breast neoplasia development. This study aimed to assess alterations in the gut microbiota in breast cancer patients.

methodsA search strategy was developed using the terms: "Microbiota," "Gastrointestinal Microbiome," "Breast Cancer," and synonyms. Ten observational studies were included.

resultsThe total sample was 1730 women (929 cases and 801 controls). The meta-analysis of alpha diversity, assessed by the Shannon index, displayed that in the breast cancer group, the diversity of the gut microbiota was reduced compared to controls, with a standardized mean difference (SMD) of - 0.34 (95% CI - 0.59, - 0.10, I

conclusionsThe study found a significant difference in gut microbiota diversity between women with breast cancer and controls, supporting the growing evidence that the gut microbiota may play a role in mammary carcinogenesis.

Indexed as

Breast NeoplasmsGastrointestinal MicrobiomeBody Mass IndexFemaleHumansObesityObservational Studies as TopicBreast cancerGut microbiotaSystematic review

Identifiers

PMID39652259

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.