Evidence map›Paper›PMID 24465838›Full record

ArticlePloS one2014

The bacterial amyloid curli is associated with urinary source bloodstream infection.

Chia Hung, Jonas Marschall, Carey-Ann D Burnham, Albert S Byun, Jeffrey P Henderson

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.6field-weighted citation impact, top 7% 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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Epidemiology and characterization ofAccess microbiology · 2023
    Article
  6. Article
  7. Polysaccharides fromFrontiers in cellular and infection microbiology · 2022
    Article
  8. Article
  9. Article
  10. Article
  11. Curli of UropathogenicFrontiers in microbiology · 2019
    Article
  12. Phosphoethanolamine cellulose enhances curli-mediated adhesion of uropathogenicProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Expression of Curli byFrontiers in cellular and infection microbiology · 2016
    Article
  19. Review
  20. 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

5 authors at 2 institutions in 2 countries.

Chia HungDivision of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Center for Women's Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, United States of America.
Jonas MarschallDivision of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Center for Women's Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Department of Infectious Diseases, Bern University Hospital, Bern, Switzerland.
Carey-Ann D BurnhamDepartment of Pathology & Immunology, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Department of Pediatrics, Washington University School of Medicine, St. Louis, Missouri, United States of America.
Albert S ByunDivision of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Center for Women's Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, United States of America.
Jeffrey P HendersonDivision of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States of America ; Center for Women's Infectious Diseases Research, Washington University School of Medicine, St. Louis, Missouri, United States of America.
Washington University in St. Louis · USUniversity Hospital of Bern · CH

Funding

Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
pan-Genome of E.coli in the bladder and gut of women with recurrent UTIP50DK064540 · NIDDK · WASHINGTON UNIVERSITY · PI HULTGREN, SCOTT J. · 2002 to 2017
$17.9M
Washington University Institute of Clinical and Translational SciencesKL2TR000450 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$8.8M
Washington University Institute of Clinical and Translational Sciences (KL2)KL2RR024994 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$8.6M
INTERDISCIPLINARY RESEARCH CAREERS IN WOMEN'S HEALTHK12HD001459 · NICHD · WASHINGTON UNIVERSITY · PI SEMENKOVICH, CLAY F. · 2000 to 2014
$6.9M
NCATS NIH HHS KL2 TR000450NCATS NIH HHS UL1 TR000448NCEZID CDC HHS U54 CK000162NCRR NIH HHS KL2 RR024994NCRR NIH HHS KL2RR024994NCRR NIH HHS UL1 RR024992NCRR NIH HHS UL1RR024992NICHD NIH HHS 5K12HD001459-13NICHD NIH HHS HD001459-09NICHD NIH HHS K12 HD001459NIDDK NIH HHS DK064540-09NIDDK NIH HHS P50 DK064540Wellcome Trust
6 · The paper itself

Abstract

Urinary tract infections are the most common cause of E. coli bloodstream infections (BSI) but the mechanism of bloodstream invasion is poorly understood. Some clinical isolates have been observed to shield themselves with extracellular amyloid fibers called curli at physiologic temperature. We hypothesize that curli fiber assembly at 37 °C promotes bacteremic progression by urinary E. coli strains. Curli expression by cultured E. coli isolates from bacteriuric patients in the presence and absence of bacteremia were compared using Western blotting following amyloid fiber disruption with hexafluoroisopropanol. At 37 °C, urinary isolates from bacteremic patients were more likely to express curli than those from non-bacteremic patients [16/22 (73%) vs. 7/21 (33%); p = 0.01]. No significant difference in curli expression was observed at 30 °C [86% (19/22) vs. 76% (16/21); p = 0.5]. Isolates were clonally diverse between patients, indicating that this phenotype is distributed across multiple lineages. Most same-patient urine and blood isolates were highly related, consistent with direct invasion of urinary bacteria into the bloodstream. 37 °C curli expression was associated with bacteremic progression of urinary E. coli isolates in this population. These findings suggest new future diagnostic and virulence-targeting therapeutic approaches.

Indexed as

AmyloidBacteremiaBacterial ProteinsEscherichia coliEscherichia coli InfectionsGene Expression Regulation, BacterialGenetic VariationHumansTemperatureUrinary Tract InfectionsAmyloidBacterial ProteinsCrl protein, Bacteria

Identifiers

PMID24465838
PMCPMC3896446
OpenAlexW1983617938

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.