Evidence map›Paper›PMID 32295520›Full record

ArticleBMC microbiology2020

Difference in virulence between Neisseria meningitidis serogroups W and Y in transgenic mice.

Lorraine Eriksson, Bianca Stenmark, Ala-Eddine Deghmane, Sara Thulin Hedberg, Olof Säll, Hans Fredlund, Paula Mölling, Muhamed-Kheir Taha

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 27% 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

9 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Prevalence and persistence ofEpidemiology and infection · 2023
    Article
  7. Article
  8. Review
  9. Atypical presentation ofEpidemiology and infection · 2021
    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

8 authors at 2 institutions in 2 countries.

Lorraine ErikssonDepartment of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden. lorraine.eriksson@regionorebrolan.se.
Bianca StenmarkDepartment of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Ala-Eddine DeghmaneInstitut Pasteur, Invasive Infections Unit, Paris, France.
Sara Thulin HedbergDepartment of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Olof SällDepartment of Infectious Diseases, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Hans FredlundDepartment of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Paula MöllingDepartment of Laboratory Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Muhamed-Kheir TahaInstitut Pasteur, Invasive Infections Unit, Paris, France.
Örebro University · SEInstitut Pasteur · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeisseria meningitidis serogroups W and Y are the most common serogroups causing invasive meningococcal disease in Sweden. The majority of cases are caused by the serogroup W UK 2013 strain of clonal complex (cc) 11, and subtype 1 of the serogroup Y, YI strain of cc23. In this study, virulence factors of several lineages within cc11 and cc23 were investigated in transgenic BALB/c mice expressing human transferrin. Transgenic mice were infected intraperitoneally with serogroup W and Y isolates. Levels of bacteria and the proinflammatory cytokine CXCL1 were determined in blood collected 3 h and 24 h post-infection. Apoptosis was investigated in immune cells from peritoneal washes of infected mice. Adhesion and induction of apoptosis in human epithelial cells were also scored.

resultsThe levels of bacteraemia, CXCL1, and apoptosis were higher in serogroup W infected mice than in serogroup Y infected mice. Serogroup W isolates also induced higher levels of apoptosis and adhesion in human epithelial cells. No significant differences were observed between different lineages within cc11 and cc23.

conclusionsN. meningitidis Serogroup W displayed a higher virulence in vivo in transgenic mice, compared to serogroup Y. This was reflected by higher bacteremia, proinflammatory activity, and ability to induce apoptosis in mouse immune cells and human epithelial cells.

Indexed as

AnimalsApoptosisBacteremiaCell AdhesionCell LineChemokine CXCL1Disease Models, AnimalFemaleHumansMeningococcal InfectionsMiceMice, Inbred BALB CMice, TransgenicNeisseria meningitidisSerogroupSwedenChemokine CXCL1Cxcl1 protein, mouseTransferrinNeisseria meningitidisSerogroup WSerogroup YTransgenic miceVirulence

Identifiers

PMID32295520
PMCPMC7160935
OpenAlexW3016606636

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.