Evidence map›Paper›PMID 23936127›Full record

ArticlePloS one2013

Genotypic and phenotypic characterisation of enteroaggregative Escherichia coli from children in Rio de Janeiro, Brazil.

Fernanda L S França, Timothy J Wells, Douglas F Browning, Raquel Tayar Nogueira, Felipe Silva Sarges, Ana Claudia Pereira, Adam F Cunningham, Kely Lucheze, Ana Claudia Paula Rosa, Ian R Henderson and 1 more

Abstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing 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

17 citing papers in PubMed.

  1. EnteroaggregativeEcoSal Plus · 2025
    Review
  2. Article
  3. Article
  4. Article
  5. Detection and characterization of potentially hybrid enteroaggregative Escherichia coli (EAEC) strains isolated from urinary tract infection.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Article
  6. Diarrhoeal pathogens in the stools of children living with HIV in Ibadan, Nigeria.Frontiers in cellular and infection microbiology · 2023
    Article
  7. Review
  8. Article
  9. Characterization of UropathogenicMicroorganisms · 2022
    Article
  10. Article
  11. Article
  12. Article
  13. Genotypic and phenotypic characterization of enteroaggregativeIranian journal of basic medical sciences · 2020
    Article
  14. Article
  15. Article
  16. Typical and Atypical EnteroaggregativeFrontiers in microbiology · 2019
    Article
  17. 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

11 authors.

Fernanda L S FrançaDepartamento de Microbiologia, Imunologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil.
Timothy J Wells
Douglas F Browning
Raquel Tayar Nogueira
Felipe Silva Sarges
Ana Claudia Pereira
Adam F Cunningham
Kely Lucheze
Ana Claudia Paula Rosa
Ian R Henderson
Maria das Graças de Luna

Funding

Medical Research Council G0801209
6 · The paper itself

Abstract

Enteroaggregative Escherichia coli (EAEC) is a significant cause of diarrhoeal illness in both children and adults. Genetic heterogeneity and recovery of EAEC strains from both healthy and diseased individuals complicates our understanding of EAEC pathogenesis. We wished to establish if genetic or phenotypic attributes could be used to distinguish between strains asymptomatically colonising healthy individuals and those which cause disease. Genotypic screening of a collection of twenty four EAEC isolates from children with and without diarrhoea revealed no significant differences in the repertoire of putative virulence factors present in either group of strains. In contrast, EAEC strains from phylogroup A were more strongly associated with asymptomatic groups whereas strains from phylogroup D were more associated with cases of diarrhoea. Phenotypic screening revealed no differences in the ability of strains from either cohort of children to form biofilms, to adhere to and invade cells in tissue culture or to cause disease in the Caenorhabditis elegans model of infection. However, the latter assay did reveal significant reduction in nematode killing rates when specific virulence factors were deleted from human pathogenic strains. Our results suggest that current models of infection are not useful for distinguishing avirulent from pathogenic strains of EAEC but can be useful in studying the effect of specific virulence factors.

Indexed as

GenotypePhenotypeAnimalsBacterial AdhesionBiofilmsBrazilCaenorhabditis elegansCase-Control StudiesCell LineChild, PreschoolDiarrheaEscherichia coliEscherichia coli InfectionsGene DeletionHumansInfantVirulence Factors

Identifiers

PMID23936127
PMCPMC3728331

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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.