Evidence map›Paper›PMID 20231417›Full record

ArticleInfection and immunity2010

Anaerobic metabolism occurs in the substratum of gonococcal biofilms and may be sustained in part by nitric oxide.

Megan L Falsetta, Alastair G McEwan, Michael P Jennings, Michael A Apicella

Open access · greenAbstract 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 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.3field-weighted citation impact, top 6% 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

26 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Meningococcal Urethritis: Old and New.Journal of clinical microbiology · 2022
    Review
  5. Article
  6. TheFrontiers in immunology · 2019
    Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Role of biofilm in children with recurrent upper respiratory tract infections.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2015
    Review
  14. Article
  15. Article
  16. Article
  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

4 authors at 3 institutions in 2 countries.

Megan L FalsettaDepartment of Microbiology, University of Iowa, 51 Newton Rd., BSB 3-403, Iowa City, IA 52242, USA.
Alastair G McEwan
Michael P Jennings
Michael A Apicella
University of Iowa · USGriffith University · AUUniversity of Queensland · AU

Funding

THE BIOLOGY OF PATHOGENIC NEISSERIAR01AI045728 · NIAID · UNIVERSITY OF IOWA · PI APICELLA, MICHAEL A. · 1999 to 2010
$3.7M
NIAID NIH HHS R-01AI045728NIAID NIH HHS R01 AI045728
6 · The paper itself

Abstract

Neisseria gonorrhoeae is the etiologic agent of gonorrhea, which has been among the most frequently reported communicable diseases in the United States since 1960. Women frequently do not exhibit symptoms, which can lead to chronic infection. N. gonorrhoeae readily forms biofilms over abiotic surfaces, over primary and transformed cervical epithelial cells, and over cervical tissues in vivo. Biofilms are often associated with chronic infection, which suggests a link between biofilm formation and asymptomatic gonorrhea in women. Proteins involved in anaerobic metabolism and oxidative-stress tolerance are critical for normal biofilm formation of N. gonorrhoeae. Therefore, we examined the spatial profiles of anaerobic respiration in N. gonorrhoeae, using an aniA'-'gfp transcriptional fusion. Nitric oxide (NO) can elicit biofilm dispersal when present at sublethal concentrations in the surrounding medium. Some reports indicate that NO may also encourage biofilm formation at higher, potentially lethal concentrations. NO is produced by polymorphonuclear lymphocytes (PMNs) and cervical endothelial and epithelial cells. Thus, we also examined the effect of NO on N. gonorrhoeae biofilms. We found that anaerobic respiration occurs predominantly in the substratum of gonococcal biofilms and that expression of aniA is induced over time in biofilms. Treatment with high concentrations of a rapid-release NO donor prevents biofilm formation when supplied early in biofilm development but can also enhance biofilm formation once anaerobic respiration is initiated. NO treatment partially restores biofilm formation in an aniA::kan insertion mutant, which suggests that N. gonorrhoeae in biofilms may use NO as a substrate for anaerobic growth but prefer nitrite.

Indexed as

BiofilmsAnaerobiosisAntigens, BacterialArtificial Gene FusionBacterial Outer Membrane ProteinsFemaleGenes, ReporterGreen Fluorescent ProteinsHumansNeisseria gonorrhoeaeNitric OxideaniA protein, Neisseria gonorrhoeaeAntigens, BacterialBacterial Outer Membrane ProteinsGreen Fluorescent ProteinsNitric Oxide

Identifiers

PMID20231417
PMCPMC2863506
OpenAlexW2062655846

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.