Evidence map›Paper›PMID 27646192›Full record

ArticleBMC microbiology2016

Human extraintestinal pathogenic Escherichia coli strains differ in prevalence of virulence factors, phylogroups, and bacteriocin determinants.

Lenka Micenková, Juraj Bosák, Martin Vrba, Alena Ševčíková, David Šmajs

Open access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
7.0field-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

44 citing papers in PubMed, 63 citations in OpenAlex.

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  14. Non-classical roles of bacterial siderophores in pathogenesis.Frontiers in cellular and infection microbiology · 2024
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  17. Evidence for Widespread Class II Microcins inApplied and environmental microbiology · 2022
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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

5 authors at 2 institutions in 1 country.

Lenka MicenkováDepartment of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A6, 625 00, Brno, Czech Republic.
Juraj BosákDepartment of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A6, 625 00, Brno, Czech Republic.
Martin VrbaDepartment of Clinical Microbiology, Faculty Hospital Brno, Jihlavská 20, 625 00, Brno, Czech Republic.
Alena ŠevčíkováDepartment of Clinical Microbiology, Faculty Hospital Brno, Jihlavská 20, 625 00, Brno, Czech Republic.
David ŠmajsDepartment of Biology, Faculty of Medicine, Masaryk University, Kamenice 5, Building A6, 625 00, Brno, Czech Republic. dsmajs@med.muni.cz.
Masaryk University · CZUniversity Hospital Brno · CZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe study used a set of 407 human extraintestinal pathogenic E. coli strains (ExPEC) isolated from (1) skin and soft tissue infections, (2) respiratory infections, (3) intra-abdominal infections, and (4) genital smears. The set was tested for bacteriocin production, for prevalence of bacteriocin and virulence determinants, and for phylogenetic typing. Results obtained from the group of ExPEC strains were compared to data from our previously published analyses of 1283 fecal commensal E. coli strains.

resultsThe frequency of bacteriocinogeny was significantly higher in the set of ExPEC strains (63.1 %), compared to fecal E. coli (54.2 %; p < 0.01). Microcin producers and microcin determinants dominated in ExPEC strains, while colicin producers and colicin determinants were more frequent in fecal E. coli (p < 0.01). Higher production of microcin M and lower production of microcin B17, colicin Ib, and Js was detected in the set of ExPEC strains. ExPEC strains had a significantly higher prevalence of phylogenetic group B2 (52.6 %) compared to fecal E. coli strains (38.3 %; p < 0.01).

conclusionsHuman ExPEC strains were shown to differ from human fecal strains in a number of parameters including bacteriocin production, prevalence of several bacteriocin and virulence determinants, and prevalence of phylogenetic groups. Differences in these parameters were also identified within subgroups of ExPEC strains of diverse origin. While some microcin determinants (mM, mH47) were associated with virulent strains, other bacteriocin types (mB17, Ib, and Js) were associated with fecal flora.

Indexed as

PhylogenyPrevalenceAdolescentAdultAgedAged, 80 and overBacteriocinsChildChild, PreschoolColicinsCzech RepublicDNA, BacterialEscherichia coli InfectionsExtraintestinal Pathogenic Escherichia coliFecesFemaleBacteriocinsColicinsDNA, BacterialmicrocinVirulence FactorsBacteriocinogenyColicinEscherichia coliExPECMicrocinVirulence factor

Identifiers

PMID27646192
PMCPMC5028950
OpenAlexW2522537319

What OpenQuestion holds

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LicenceCC BY
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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.