Evidence map›Paper›PMID 34504159›Full record

ArticleScientific reports2021

The gastric microbiota in patients with Crohn's disease; a preliminary study.

Jerzy Ostrowski, Maria Kulecka, Iwona Zawada, Natalia Żeber-Lubecka, Agnieszka Paziewska, Katarzyna Graca-Pakulska, Krzysztof Dąbkowski, Karolina Skubisz, Patrycja Cybula, Filip Ambrożkiewicz and 3 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 14% 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

8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. To eradicate or not?Frontiers in medicine · 2026
    Pooled it
  2. Pooled it
  3. Review
  4. A Knowledge-Guided Large Language Model Framework for Microbiome-Based Disease Diagnosis.Proceedings. IEEE International Conference on Bioinformatics and Biomedicine · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. 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

13 authors at 4 institutions in 2 countries.

Jerzy OstrowskiDepartment of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland. jostrow@warman.com.pl.ORCID 0000-0003-1363-3766
Maria KuleckaDepartment of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland.
Iwona ZawadaDepartment of Gastroenterology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252, Szczecin, Poland.
Natalia Żeber-LubeckaDepartment of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland.
Agnieszka PaziewskaDepartment of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland.
Katarzyna Graca-PakulskaDepartment of Gastroenterology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252, Szczecin, Poland.
Krzysztof DąbkowskiDepartment of Gastroenterology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252, Szczecin, Poland.ORCID 0000-0002-5386-9004
Karolina SkubiszDepartment of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland.
Patrycja CybulaDepartment of Gastroenterology, Hepatology and Clinical Oncology, Centre of Postgraduate Medical Education, Warsaw, Poland.
Filip AmbrożkiewiczDepartment of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland.
Elżbieta UrasińskaDepartment of Pathology, Pomeranian Medical University in Szczecin, Szczecin, Poland.
Michał MikulaDepartment of Genetics, Maria Skłodowska-Curie National Research Institute of Oncology, Roentgena 5, 02-781, Warsaw, Poland.
Teresa StarzyńskaDepartment of Gastroenterology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252, Szczecin, Poland. testa@pum.edu.pl.
Pomeranian Medical University · PLPostgraduate School of Molecular Medicine · PLThe Maria Sklodowska-Curie National Research Institute of Oncology · PLNational Institute of Oncology · HU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The gastric microbiota in Crohn's disease (CD) has not been studied. The purpose of the study was to evaluate differences of stomach microbiota between CD patients and controls. DNA was extracted from gastric mucosal and fluid samples, from 24 CD patients and 19 controls. 16S rRNA gene sequencing identified 1511 operational taxonomic units (OTUs), of which 239 passed the low abundance and low variance filters. All but one CD patients were HP negative. Fifteen bacterial phyla were identified in at least one mucosal or fluid site. Of these, Bacteroidota and Firmicutes accounted for 70% of all phyla. Proteobacteria, Actinobacteriota, and Fusobacteriota combined accounted for 27%. There was significant difference in the relative abundance of Bacteroidota, Proteobacteria, Fusobacteriota, and Campilobacterota between CD patients and controls only in gastric corpus samples. In gastric liquid, there was a significant difference only in Actinobacteriota. Pairwise comparison identified 67 differentially abundant OTUs in at least one site. Of these, 13 were present in more than one comparison, and four differentiating OTUs (Neisseriaceae, Neisseria, Absconditabacteriales, and Microbacteriaceae) were identified at all tested sites. The results reveal significant changes in gastric microbial profiles (beta diversity, phylum, and individual taxa levels) between H. pylori-negative CD patients and controls.

Indexed as

BacillotaBacteroidetesCrohn DiseaseFecesFusobacteriaGastrointestinal MicrobiomeHumansProteobacteriaRNA, Ribosomal, 16SRNA, Ribosomal, 16S

Identifiers

PMID34504159
PMCPMC8429686
OpenAlexW3198243024

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.