Evidence map›Paper›PMID 19841077›Full record

ArticleInfection and immunity2010

Absence of inflammation and pneumonia during infection with nonpigmented Yersinia pestis reveals a new role for the pgm locus in pathogenesis.

Hanni Lee-Lewis, Deborah M Anderson

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. A Perilous Combination:Vector borne and zoonotic diseases (Larchmont, N.Y.) · 2023
    Review
  6. Overview ofBiology · 2023
    Review
  7. Article
  8. Attenuation ofFrontiers in cellular and infection microbiology · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  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

2 authors at 1 institution in 1 country.

Hanni Lee-LewisDepartment of Veterinary Pathobiology, University of Missouri, Columbia, Missouri 65211, USA.
Deborah M Anderson
University of Missouri · US

Funding

POSTDOCTORAL TRAINING IN LABORATORY ANIMAL MEDICINET32RR007004 · NCRR · UNIVERSITY OF MISSOURI-COLUMBIA · PI BRYDA, ELIZABETH C, FRANKLIN, CRAIG L · 1985 to 2011
$3.3M
NCRR NIH HHS T32 RR007004NIAID NIH HHS U54 AI157160
6 · The paper itself

Abstract

Yersinia pestis causes primary pneumonic plague in many mammalian species, including humans, mice, and rats. Virulent Y. pestis strains undergo frequent spontaneous deletion of a 102-kb chromosomal DNA fragment, known as the pigmentation (pgm) locus, when grown in laboratory media, yet this locus is present in every virulent isolate. The pgm locus encodes, within a high-pathogenicity island, siderophore biosynthesis genes that are required for growth in the mammalian host when inoculated by peripheral routes. Recently, higher challenge doses of nonpigmented Y. pestis were reported to cause fatal pneumonic plague in mice, suggesting a useful model for studies of virulence and immunity. In this work, we show that intranasal infection of BALB/c mice with nonpigmented Yersinia pestis does not result in pneumonic plague. Despite persistent bacterial colonization of the lungs and the eventual death of infected mice, pulmonary inflammation was generally absent, and there was no disease pathology characteristic of pneumonic plague. Iron given to mice at the time of challenge, previously shown to enhance the virulence of pgm-deficient strains, resulted in an accelerated disease course, with less time to bacteremia and lethality, but lung inflammation and pneumonia were still absent. We examined other rodent models and found differences in lung inflammatory responses, some of which led to clearance and survival even when high challenge doses were used. Together, the results suggest that the Y. pestis pgm locus encodes previously unappreciated virulence factors required for the induction of pneumonic plague that are independent of iron scavenging from the mammalian host.

Indexed as

AnimalsBacterial ProteinsFemaleGene Expression Regulation, BacterialInflammationIronMiceMice, Inbred StrainsPigmentationPlagueRatsRats, Inbred StrainsSepsisTime FactorsVirulenceYersinia pestisBacterial ProteinsIron

Identifiers

PMID19841077
PMCPMC2798233
OpenAlexW2161459051

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.