Evidence map›Paper›PMID 17400780›Full record

ArticleApplied and environmental microbiology2007

Identification of unconventional intestinal pathogenic Escherichia coli isolates expressing intermediate virulence factor profiles by using a novel single-step multiplex PCR.

Daniel Müller, Lilo Greune, Gerhard Heusipp, Helge Karch, Angelika Fruth, Helmut Tschäpe, M Alexander Schmidt

Abstract readEvaluation StudyValidation Study
In one paragraph

Article in Applied and environmental microbiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 113 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
113citing papers in PubMed, 1 pooled it
–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

113 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Enteroaggregative Escherichia coli and acute diarrhea in children: a meta-analysis of South Asian populations.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2013
    Pooled it
  2. Trial
  3. Article
  4. Hybrid enteric-extraintestinal lineages in astA-positive Escherichia coli: Molecular characterization and high-risk MDR clones in Neonatal Calves.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026
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  12. An Optimized PCR Assay to DetectFood safety (Tokyo, Japan) · 2025
    Article
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  15. Association ofFrontiers in cellular and infection microbiology · 2025
    Article
  16. In Vitro Antibacterial Activity of Essential Oils fromPathogens (Basel, Switzerland) · 2024
    Article
  17. Antimicrobial Resistance and Pathotypes ofAnimals : an open access journal from MDPI · 2024
    Article
  18. An outbreak associated withEpidemiology and infection · 2024
    Article
  19. Article
  20. Article

53 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

7 authors.

Daniel MüllerInstitut für Infektiologie, Zentrum für Molekularbiologie der Entzündung (ZMBE), Von-Esmarch-Str. 56, D-48149 Münster, Germany.
Lilo Greune
Gerhard Heusipp
Helge Karch
Angelika Fruth
Helmut Tschäpe
M Alexander Schmidt

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intestinal pathogenic Escherichia coli represents a global health problem for mammals, including humans. At present, diarrheagenic E. coli bacteria are grouped into seven major pathotypes that differ in their virulence factor profiles, severity of clinical manifestations, and prognosis. In this study, we developed and evaluated a one-step multiplex PCR (MPCR) for the straightforward differential identification of intestinal pathotypes of E. coli. The specificity of this novel MPCR was validated by using a subset of reference strains and further confirmed by PCR-independent pheno- and genotypic characterization. Moreover, we tested 246 clinical E. coli isolates derived from diarrhea patients from several distinct geographic regions. Interestingly, besides strains belonging to the defined and well-described pathotypes, we identified five unconventional strains expressing intermediate virulence factor profiles. These strains have been further characterized and appear to represent intermediate strains carrying genes and expressing factors associated with enteropathogenic E. coli, Shiga toxin-producing E. coli, enterotoxigenic E. coli, and enteroaggregative E. coli alike. These strains represent further examples of the extraordinary plasticity of the E. coli genome. Moreover, this implies that the important identification of specific pathotypes has to be based on a broad matrix of indicator genes. In addition, the presence of intermediate strains needs to be accounted for.

Indexed as

Bacterial AdhesionBacterial Typing TechniquesDiarrheaDNA, BacterialEscherichia coliEscherichia coli InfectionsEscherichia coli ProteinsGenotypeHeLa CellsHumansMicroscopy, Electron, TransmissionMicroscopy, FluorescencePolymerase Chain ReactionSensitivity and SpecificityVirulence FactorsDNA, BacterialEscherichia coli ProteinsVirulence Factors

Identifiers

PMID17400780
PMCPMC1907121

What OpenQuestion holds

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Registered trials

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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.