Evidence map›Paper›PMID 34057877›Full record

ReviewExpert review of clinical immunology2021

The pathogenic oral-gut-liver axis: new understandings and clinical implications.

Jin Imai, Sho Kitamoto, Nobuhiko Kamada

Open access · greenAbstract readReview
In one paragraph

Review in Expert review of clinical immunology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 13% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Oral and Pancreatobiliary Microbiota in Cancer: A Systematic Review of Compositional Alterations and Their Clinical Implications.Journal of oral pathology & medicine : official publication of the International Association of Oral Pathologists and the American Academy of Oral Pathology · 2026
    Pooled it
  2. [Analysis of the Characteristics of the Oral Virome in Metabolic Dysfunction-Associated Fatty Liver Disease].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2026
    Article
  3. Article
  4. Review
  5. Article
  6. SupragingivalJournal of oral microbiology · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Periodontal Medicine: The Past, the Present, the Future.Journal of periodontal research · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Review
  19. Review
  20. Review
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

3 authors at 2 institutions in 2 countries.

Jin ImaiDivision of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States.
Sho KitamotoDivision of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States.
Nobuhiko KamadaDivision of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, MI, United States.ORCID 0000-0002-1980-4178
University of Michigan · USTokai University · JP

Funding

University of Michigan Center for Gastrointestinal ResearchP30DK034933 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MERCHANT, JUANITA L. · 1986 to 2021
$22.5M
The role of IL-1ß-inducing pathobionts in the pathogenesis of Crohn’s diseaseR01DK108901 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Nobuhiko Kamada · 2017 to 2026
$3.8M
Novel biomaterials for IBD treatmentR01DK125087 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAMADA, NOBUHIKO, MOON, JAMES J. · 2020 to 2023
$2.5M
The link between oral bacteria and gut diseaseR01DK119219 · NIDDK · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAMADA, NOBUHIKO · 2019 to 2022
$1.6M
Periodontitis and extra-oral mucosal inflammationR21AI142047 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KAMADA, NOBUHIKO · 2019 to 2020
$429k
NIAID NIH HHS R21 AI142047NIDDK NIH HHS P30 DK034933NIDDK NIH HHS R01 DK108901NIDDK NIH HHS R01 DK119219NIDDK NIH HHS R01 DK125087
6 · The paper itself

Abstract

introductionOral health is closely related to extra-oral disease status, as may be represented by the manifestations of gastrointestinal and liver diseases. AREAS COVERED: This review focuses on the roles that the oral-gut or the oral-gut-liver axis play in the pathogenesis of inflammatory bowel disease, colorectal cancer, metabolic fatty liver disease, and nonalcoholic steatohepatitis. The discussion will begin with clinical data, including data from preclinical animal models, to elucidate mechanisms. We will also discuss ways to target oral dysbiosis and oral inflammation to treat gastrointestinal and liver diseases. EXPERT OPINION: Several studies have demonstrated that oral pathobionts can translocate to the gastrointestinal tract where they contribute to inflammation and tumorigenesis. Furthermore, oral bacteria that migrate to the gastrointestinal tract can disseminate to the liver and cause hepatic disease. Thus, oral bacteria that ectopically colonize the intestine may serve as biomarkers for gastrointestinal and liver diseases. Also, understanding the characteristics of the oral-gut and oral-gut-liver microbial and immune axes will provide new insights into the pathogenesis of these diseases.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaNon-alcoholic Fatty Liver DiseaseAnimalsDysbiosisHumanscolorectal cancergut microbiotainflammatory bowel diseasemetabolic fatty liver diseasenonalcoholic steatohepatitisOral microbiota

Identifiers

PMID34057877
PMCPMC8416698
OpenAlexW3165040273

What OpenQuestion holds

Textmetadata
LicenceTDM
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.