Evidence map›Paper›PMID 26282415›Full record

ArticleAntimicrobial agents and chemotherapy2015

Effects of selection pressure and genetic association on the relationship between antibiotic resistance and virulence in Escherichia coli.

Lixin Zhang, Karen Levy, Gabriel Trueba, William Cevallos, James Trostle, Betsy Foxman, Carl F Marrs, Joseph N S Eisenberg

Abstract read
In one paragraph

Article in Antimicrobial agents and chemotherapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing 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

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

  1. Pooled it
  2. Article
  3. Antimicrobial Resistance and Virulence ofAntibiotics (Basel, Switzerland) · 2026
    Article
  4. Article
  5. Avian PathogenicVeterinary sciences · 2025
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Detecting Class 1 Integrons and Their Variable Regions inAntibiotics (Basel, Switzerland) · 2024
    Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
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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

8 authors.

Lixin ZhangDepartment of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, Michigan, USA lxzhang@msu.edu.
Karen LevyDepartment of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia, USA.ORCID http://orcid.org/0000-0002-0968-9401
Gabriel TruebaInstitute of Microbiology, Universidad San Francisco de Quito, Quito, Ecuador.
William CevallosBiomedical Center-School of Medicine, Universidad Central del Ecuador, Quito, Ecuador.
James TrostleDepartment of Anthropology, Trinity College, Hartford, Connecticut, USA.
Betsy FoxmanDepartment of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, Michigan, USA.ORCID http://orcid.org/0000-0001-6682-238X
Carl F MarrsDepartment of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, Michigan, USA.
Joseph N S EisenbergDepartment of Epidemiology, University of Michigan, School of Public Health, Ann Arbor, Michigan, USA.

Funding

Environment Change and Diarrheal Disease: A Natural ExperimentR01AI050038 · NIAID · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI EISENBERG, JOSEPH N. S. · 2003 to 2012
$6.1M
Impacts of Human Movement on Regional Strain Distribution of Diarrheagenic E.coliK01AI103544 · NIAID · EMORY UNIVERSITY · PI LEVY, KAREN · 2013 to 2017
$655k
NIAID NIH HHS K01 AI103544NIAID NIH HHS K01AI103544NIAID NIH HHS R01 AI050038NIAID NIH HHS R01AI050038
6 · The paper itself

Abstract

Antibiotic selection pressure and genetic associations may lead to the cooccurrence of resistance and virulence in individual pathogens. However, there is a lack of rigorous epidemiological evidence that demonstrates the cooccurrence of resistance and virulence at the population level. Using samples from a population-based case-control study in 25 villages in rural Ecuador, we characterized resistance to 12 antibiotics among pathogenic (n = 86) and commensal (n = 761) Escherichia coli isolates, classified by the presence or absence of known diarrheagenic virulence factor genes. The prevalences of resistance to single and multiple antibiotics were significantly higher for pathogenic isolates than for commensal isolates. Using a generalized estimating equation, antibiotic resistance was independently associated with virulence factor carriage, case status, and antibiotic use (for these respective factors: odds ratio [OR] = 3.0, with a 95% confidence interval [CI] of 1.7 to 5.1; OR = 2.0, with a 95% CI of 1.3 to 3.0; and OR = 1.5, with a 95% CI of 0.9 to 2.5). Virulence factor carriage was more strongly related to antibiotic resistance than antibiotic use for all antibiotics examined, with the exception of fluoroquinolones, gentamicin, and cefotaxime. This study provides epidemiological evidence that antibiotic resistance and virulence factor carriage are linked in E. coli populations in a community setting. Further, these data suggest that while the cooccurrence of resistance and virulence in E. coli is partially due to antibiotic selection pressure, it is also genetically determined. These findings should be considered in developing strategies for treating infections and controlling for antibiotic resistance.

Indexed as

Anti-Bacterial AgentsDrug Resistance, BacterialEscherichia coliMicrobial Sensitivity TestsVirulenceAnti-Bacterial Agents

Identifiers

PMID26282415
PMCPMC4604409

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.