Evidence map›Paper›PMID 33513791›Full record

ReviewNutrients2021

Gut-Brain-Microbiota Axis: Antibiotics and Functional Gastrointestinal Disorders.

Tarkan Karakan, Ceren Ozkul, Esra Küpeli Akkol, Saniye Bilici, Eduardo Sobarzo-Sánchez, Raffaele Capasso

Open access · goldAbstract readReview
In one paragraph

Review in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 1 pooled it
20.6field-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

78 citing papers in PubMed, 1 synthesis or guideline pooled it, 143 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Review
  6. Antibiotic-induced Microbiome Depletion Selectively Reduces Baseline Hypothalamic Oxytocin Signaling without Affecting MDMA-induced Oxytocin Response in Rats.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2026
    Article
  7. Food science & nutrition · 2026
    Article
  8. Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. Article
  14. Article
  15. Wuji Pill andFrontiers in microbiology · 2026
    Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Prevalence ofIranian journal of microbiology · 2025
    Article

18 more citing papers are in PubMed but not listed here.

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

6 authors at 4 institutions in 4 countries.

Tarkan KarakanDepartment of Gastroenterology, Faculty of Medicine, Gazi University, 06570 Ankara, Turkey.ORCID 0000-0003-1561-8789
Ceren OzkulDepartment of Pharmaceutical Microbiology, Faculty of Pharmacy, HacettepeUniversity, Sıhhiye, 06110 Ankara, Turkey.ORCID 0000-0002-0921-5863
Esra Küpeli AkkolDepartment of Pharmacognosy, Faculty of Pharmacy, Gazi University, Etiler, 06330 Ankara, Turkey.ORCID 0000-0002-5829-7869
Saniye BiliciDepartment of Nutrition and Dietetics, Faculty of Health Science, Gazi University, Beşevler, 06560 Ankara, Turkey.
Eduardo Sobarzo-SánchezInstituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, 8330507 Santiago, Chile.ORCID 0000-0002-2790-2544
Raffaele CapassoDepartment of Agricultural Sciences, University of Naples Federico II, 80055 Portici, Naples, Italy.ORCID 0000-0002-3335-1822
Gazi University · TRHacettepe University · TRUniversidade de Santiago de Compostela · ESUniversity of Naples Federico II · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Gut microbiota composition and function are major areas of research for functional gastrointestinal disorders. There is a connection between gastrointestinal tract and central nervous system and this is mediated by neurotransmitters, inflammatory cytokines, the vagus nerve and the hypothalamic-pituitary-adrenal axis. Functional gastrointestinal disorders are prevalent diseases affecting more than one third of the population. The etiology of these disorders is not clarified. Visceral hyperalgesia is the main hypothesis for explaining clinical symptoms, however gut-brain axis disorder is a new terminology for functional disorders. In this review, microbiota-gut-brain axis connection pathways and related disorders are discussed. Antibiotics are widely used in developed countries and recent evidence indicates antibiotic-induced dysbiosis as an important factor for functional disorders. Antibiotics exert negative effects on gut microbiota composition and functions. Antibiotic-induced dysbiosis is a major factor for occurrence of post-infectious irritable bowel syndrome. Cognitive and mood disorders are also frequent in functional gastrointestinal disorders. Animal and human trials show strong evidence for the causal relationship between gut microbiota and brain functions. Therapeutic implications of these newly defined pathogenic pathways are also discussed.

Indexed as

AnimalsAnti-Bacterial AgentsAutonomic Nervous SystemBrainDysbiosisEnteric Nervous SystemGastrointestinal DiseasesGastrointestinal MicrobiomeGastrointestinal TractHumansHypothalamo-Hypophyseal SystemImmune SystemIrritable Bowel SyndromeNeurotransmitter AgentsVagus NerveAnti-Bacterial AgentsNeurotransmitter Agentsantibioticsfunctional bowel disordersgut-brain axisgut microbiomegut microbiotairritable bowel syndromeprobiotics

Identifiers

PMID33513791
PMCPMC7910879
OpenAlexW3124415453

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.