Evidence map›Paper›PMID 26048203›Full record

Trial reportThe Journal of infection2015

Decreased microbiota diversity associated with urinary tract infection in a trial of bacterial interference.

Deborah Horwitz, Tyler McCue, Abigail C Mapes, Nadim J Ajami, Joseph F Petrosino, Robert F Ramig, Barbara W Trautner

Registry-linked trialAbstract readClinical Trial
In one paragraph

Trial report in The Journal of infection, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00554996 (Bacterial Interference for Prevention of Catheter-Associated UTI), which is not on this map. Cited by 44 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing 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.

NCT00554996 phase1completednot on this map

Bacterial Interference for Prevention of Catheter-Associated UTI

TypeinterventionalSponsorUS Department of Veterans AffairsRan2012 to 2014Enrolled10ConditionsUrinary Tract InfectionArmsE. coli 83972 coated urinary catheter
3 · Its place in the literature

Who cites it

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

  1. Pooled it
  2. Article
  3. Article
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  5. Review
  6. Article
  7. Article
  8. Review
  9. Research progress on the microbiota in bladder cancer tumors.Frontiers in cellular and infection microbiology · 2024
    Review
  10. Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Review
  16. Article
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  19. Observational
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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

7 authors.

Deborah Horwitz *Section of Infectious Diseases, Departments of Medicine and Surgery, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Tyler McCue *Alkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Abigail C MapesSection of Infectious Diseases, Departments of Medicine and Surgery, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Nadim J AjamiAlkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Joseph F PetrosinoAlkek Center for Metagenomics and Microbiome Research, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Robert F RamigDepartment of Molecular Virology and Microbiology, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.
Barbara W TrautnerSection of Infectious Diseases, Departments of Medicine and Surgery, Baylor College of Medicine, One Baylor Plaza, Houston, TX, 77030, USA.

Funding

Bacteriophage to treat UTI caused by multidrug-resistant P. aeruginosaR21AI121545 · NIAID · BAYLOR COLLEGE OF MEDICINE · PI RAMIG, ROBERT FRANKLIN · 2016 to 2017
$436k
Bacterial Interference to Prevent Catheter-Associated Urinary Tract InfectionR21DK092293 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI TRAUTNER, BARBARA WELLS · 2012 to 2013
$422k
NIAID NIH HHS R21 AI121545NIDDK NIH HHS R21 DK092293
6 · The paper itself

Abstract

backgroundPatients with long-term indwelling catheters are at high risk of catheter-associated urinary tract infection (CAUTI). We hypothesized that colonizing the bladder with a benign Escherichia coli strain (E. coli HU2117, a derivative of E. coli 83972) would prevent CAUTI in older, catheterized adults. MATERIALS AND

methodsAdults with chronic, indwelling urinary catheters received study catheters that had been pre-coated with E. coli HU2117. We monitored the cultivatable organisms in the bladder for 28 days or until loss of E. coli HU2117. Urine from 4 subjects was collected longitudinally for 16S rRNA gene profiling.

resultsEight of the ten subjects (average age 70.9 years) became colonized with E. coli HU2117, with a mean duration of 57.7 days (median: 28.5, range 0-266). All subjects also remained colonized by uropathogens. Five subjects suffered invasive UTI, 3 febrile UTI and 2 urosepsis/bacteremia, all associated with overgrowth of a urinary pathogen. Colonization with E. coli HU2117 did not impact bacterial bladder diversity, but subjects who developed infections had less diverse bladder microbiota.

conclusionsColonization with E. coli HU2117 did not prevent bladder colonization or subsequent invasive disease by uropathogens. Microbial diversity may play a protective role against invasive infection of the catheterized bladder.

trial registrationClinicalTrials.gov, NCT00554996 http://clinicaltrials.gov/ct2/show/NCT00554996.

Indexed as

AntibiosisBiodiversityMicrobiotaAgedAged, 80 and overBacteremiaCatheters, IndwellingEscherichia coliFemaleHumansMaleMiddle AgedRNA, Ribosomal, 16SUrinary BladderUrinary CatheterizationUrinary CathetersRNA, Ribosomal, 16SBiodiversityMicrobiomeMicrobiotaProbioticsUrinary tract infection

Identifiers

PMID26048203
PMCPMC4529357

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Registered trials

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.