Evidence map›Paper›PMID 24068537›Full record

ArticleWorld journal of microbiology & biotechnology2014

Effects of temperature, growth phase and luxO-disruption on regulation systems of toxin production in Vibrio vulnificus strain L-180, a human clinical isolate.

Abdelaziz Elgaml, Kazutaka Higaki, Shin-ichi Miyoshi

Abstract read
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In one paragraph

Article in World journal of microbiology & biotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Review
  6. Article
  7. Quorum Sensing Inhibition or Quenching inFrontiers in microbiology · 2021
    Review
  8. Article
  9. Review
  10. Frontiers in immunology · 2020
    Review
  11. Epidemiology, pathogenetic mechanism, clinical characteristics, and treatment of Vibrio vulnificus infection: a case report and literature review.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2019
    Review
  12. Article
  13. "In-Group" Communication in MarineFrontiers in cellular and infection microbiology · 2018
    Review
  14. Article
  15. 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

3 authors at 1 institution in 1 country.

Abdelaziz ElgamlGraduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, 1-1-1, Tsushima-Naka, Kita-Ku, Okayama, Okayama, 700-8530, Japan, prpw6b9i@s.okayama-u.ac.jp.
Kazutaka Higaki
Shin-ichi Miyoshi
Okayama University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Vibrio vulnificus is a halophilic estuarine bacterium while it causes fatal septicemia or necrotizing wound infections in humans. This pathogen secretes the metalloprotease (V. vulnificus protease: VVP) and the cytolysin (V. vulnificus hemolysin: VVH) as protein toxins; however, their production was coordinated in response to the bacterial cell density. This regulation is termed quorum sensing (QS) and is mediated by the small diffusible molecule called autoinducer 2 (AI-2). In the present study, we investigated effects of disruption of luxO encoding a central response regulator of the QS circuit, as well as effects of temperature and growth phase, on the toxin production by V. vulnificus. Disruption of luxO was found to increase VVP production and expression of its gene vvpE. The expression of smcR, crp and rpoS, of which products positively regulate vvpE expression, and luxS encoding the AI-2 synthetase were also significantly increased. On the other hand, the luxO disruption resulted in reduction of VVH production and expression of its gene vvhA. Expression of other two genes affecting the QS circuit, luxT and rpoN, were also significantly decreased. The regulation systems of VVP production were found to exert their action during the stationary phase of the bacterial growth and to be operated strongly at 26 °C. By contrast, those of VVH production apparently started at the log phase and were operated more effectively at 37 °C.

Indexed as

Bacterial ProteinsBacterial ToxinsGene Expression ProfilingGene Expression Regulation, BacterialGene Knockout TechniquesHumansMetalloendopeptidasesRepressor ProteinsVibrio InfectionsVibrio vulnificusBacterial ProteinsBacterial ToxinsMetalloendopeptidasesRepressor ProteinsVvhA protein, Vibrio vulnificusvvP protein, Vibrio vulnificus

Identifiers

PMID24068537
OpenAlexW1980957722

What OpenQuestion holds

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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.