Evidence map›Paper›PMID 20927139›Full record

ArticleThe ISME journal2011

Structure of the human gastric bacterial community in relation to Helicobacter pylori status.

Ana Maldonado-Contreras, Kate C Goldfarb, Filipa Godoy-Vitorino, Ulas Karaoz, Mónica Contreras, Martin J Blaser, Eoin L Brodie, Maria G Dominguez-Bello

Open access · bronzeAbstract read
In one paragraph

Article in The ISME journal, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 163 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
163citing papers in PubMed, 3 pooled it
7.4field-weighted citation impact, top 3% 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

163 citing papers in PubMed, 3 syntheses or guidelines pooled it, 295 citations in OpenAlex.

  1. Pooled it
  2. Effect ofFrontiers in cellular and infection microbiology · 2022
    Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Review
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  11. Review
  12. Gastro hep advances · 2026
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Link Between Oral and Gut Microbiomes: The Oral-Gut Axis.Advances in experimental medicine and biology · 2025
    Review
  19. The influence ofComputational and structural biotechnology journal · 2024
    Review
  20. Review

103 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

8 authors at 4 institutions in 3 countries.

Ana Maldonado-ContrerasDepartment of Biology, University of Puerto Rico, San Juan, PR.
Kate C Goldfarb
Filipa Godoy-Vitorino
Ulas Karaoz
Mónica Contreras
Martin J Blaser
Eoin L Brodie
Maria G Dominguez-Bello
Lawrence Berkeley National Laboratory · USUniversity of Puerto Rico System · PRInstituto Venezolano de Investigaciones Científicas · VENYU Langone Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The human stomach is naturally colonized by Helicobacter pylori, which, when present, dominates the gastric bacterial community. In this study, we aimed to characterize the structure of the bacterial community in the stomach of patients of differing H. pylori status. We used a high-density 16S rRNA gene microarray (PhyloChip, Affymetrix, Inc.) to hybridize 16S rRNA gene amplicons from gastric biopsy DNA of 10 rural Amerindian patients from Amazonas, Venezuela, and of two immigrants to the United States (from South Asia and Africa, respectively). H. pylori status was determined by PCR amplification of H. pylori glmM from gastric biopsy samples. Of the 12 patients, 8 (6 of the 10 Amerindians and the 2 non-Amerindians) were H. pylori glmM positive. Regardless of H. pylori status, the PhyloChip detected Helicobacteriaceae DNA in all patients, although with lower relative abundance in patients who were glmM negative. The G2-chip taxonomy analysis of PhyloChip data indicated the presence of 44 bacterial phyla (of which 16 are unclassified by the Taxonomic Outline of the Bacteria and Archaea taxonomy) in a highly uneven community dominated by only four phyla: Proteobacteria, Firmicutes, Actinobacteria and Bacteroidetes. Positive H. pylori status was associated with increased relative abundance of non-Helicobacter bacteria from the Proteobacteria, Spirochetes and Acidobacteria, and with decreased abundance of Actinobacteria, Bacteroidetes and Firmicutes. The PhyloChip detected richness of low abundance phyla, and showed marked differences in the structure of the gastric bacterial community according to H. pylori status.

Indexed as

AdultAgedAged, 80 and overBacteriaBiodiversityHelicobacter pyloriHumansMiddle AgedRNA, Ribosomal, 16SStomachRNA, Ribosomal, 16S

Identifiers

PMID20927139
PMCPMC3105737
OpenAlexW2007818550

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.