Evidence map›Paper›PMID 24996230›Full record

ArticleBMC research notes2014

Characterization of DNase activity and gene in Streptococcus suis and evidence for a role as virulence factor.

Bruno Haas, Laetitia Bonifait, Katy Vaillancourt, Steve J Charette, Marcelo Gottschalk, Daniel Grenier

Open access · goldAbstract read
In one paragraph

Article in BMC research notes, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.6field-weighted citation impact, top 15% 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

7 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. From Farm to Fork:Viruses · 2022
    Review
  4. Review
  5. Article
  6. Streptococcus suis in invasive human infections in Poland: clonality and determinants of virulence and antimicrobial resistance.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2016
    Article
  7. 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

6 authors at 4 institutions in 1 country.

Bruno Haas
Laetitia Bonifait
Katy Vaillancourt
Steve J Charette
Marcelo Gottschalk
Daniel GrenierGroupe de Recherche en Écologie Buccale (GREB), Faculté de Médecine Dentaire, Université Laval, 2420 Rue de la Terrasse, Quebec City, Quebec G1V 0A6, Canada. daniel.grenier@greb.ulaval.ca.
Université Laval · CAFonds de Recherche du Québec - Santé · CAInstitut Universitaire de Cardiologie et de Pneumologie de Québec · CAUniversité de Montréal · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe Gram-positive bacterium Streptococcus suis serotype 2 is an important swine pathogen and emerging zoonotic agent. Multilocus sequence typing allowed dividing S. suis serotype 2 into sequence types (STs). The three major STs of S. suis serotype 2 from North America are 1 (most virulent), 25 (intermediate virulence) and 28 (less virulent). Although the presence of DNase activity in S. suis has been previously reported, little data is available. The aim of this study was to investigate DNase activity in S. suis according to STs, to characterize the activity and gene, and to provide evidence for a potential role in virulence.

resultsWe showed that ST1 and ST28 strains exhibited DNase activity that was absent in ST25 strains. The lack of activity in ST25 isolates was associated with a 14-bp deletion resulting in a shifted reading frame and a premature stop codon. The DNase of S. suis P1/7 (ST1) was cell-associated and active on linear DNA. A DNase-deficient mutant of S. suis P1/7 was found to be less virulent in an amoeba model. Stimulation of macrophages with the DNase mutant showed a decreased secretion of pro-inflammatory cytokines and matrix metalloproteinase-9 compared to the parental strain.

conclusionsThis study further expands our knowledge of S. suis DNase and its potential role in virulence.

Indexed as

Amino Acid SequenceBacterial ProteinsBacterial Typing TechniquesBase SequenceCytokinesDeoxyribonucleasesDictyosteliumEnzyme-Linked Immunosorbent AssayGenotypeHumansMacrophagesMatrix Metalloproteinase 9Molecular Sequence DataMultilocus Sequence TypingMutationSequence DeletionBacterial ProteinsCytokinesDeoxyribonucleasesMatrix Metalloproteinase 9Virulence Factors

Identifiers

PMID24996230
PMCPMC4094637
OpenAlexW2088488695

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.