Evidence map›Paper›PMID 27288538›Full record

ArticleThe Journal of infectious diseases2016

ModA2 Phasevarion Switching in Nontypeable Haemophilus influenzae Increases the Severity of Experimental Otitis Media.

Kenneth L Brockman, Joseph A Jurcisek, John M Atack, Yogitha N Srikhanta, Michael P Jennings, Lauren O Bakaletz

Abstract read
In one paragraph

Article in The Journal of infectious diseases, 2016. 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
–field-weighted citation impact
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.

  1. Establishment of a chinchilla model ofMicrobiology spectrum · 2026
    Article
  2. Exploiting haem-iron dependence of nontypeableFrontiers in cellular and infection microbiology · 2025
    Review
  3. Phasevarions inMicrobiology spectrum · 2024
    Article
  4. Article
  5. Article
  6. Article
  7. Gene Expression Regulation in Airway Pathogens: Importance for Otitis Media.Frontiers in cellular and infection microbiology · 2022
    Review
  8. Article
  9. Article
  10. Learning from -omics strategies applied to uncoverComputational and structural biotechnology journal · 2021
    Review
  11. Panel 7 - Pathogenesis of otitis media - a review of the literature between 2015 and 2019.International journal of pediatric otorhinolaryngology · 2020
    Review
  12. Panel 1: Biotechnology, biomedical engineering and new models of otitis media.International journal of pediatric otorhinolaryngology · 2020
    Review
  13. A Bacterial Epigenetic Switch in Non-typeableFrontiers in cellular and infection microbiology · 2020
    Article
  14. Article
  15. Review
  16. Article
  17. Review
  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

6 authors.

Kenneth L BrockmanCenter for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital The Ohio State University College of Medicine, Columbus, Ohio.
Joseph A JurcisekCenter for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital The Ohio State University College of Medicine, Columbus, Ohio.
John M AtackInstitute for Glycomics, Griffith University, Gold Coast, Australia.
Yogitha N SrikhantaInstitute for Glycomics, Griffith University, Gold Coast, Australia.
Michael P JenningsInstitute for Glycomics, Griffith University, Gold Coast, Australia.
Lauren O BakaletzCenter for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital The Ohio State University College of Medicine, Columbus, Ohio.

Funding

DETERMINANTS OF H. INFLUENZAE VIRULENCE IN OTITIS MEDIAR01DC003915 · NIDCD · RESEARCH INST NATIONWIDE CHILDREN'S HOSP · PI GOODMAN, STEVEN D · 1999 to 2025
$12.5M
NIDCD NIH HHS R01 DC003915
6 · The paper itself

Abstract

Several human-adapted bacterial pathogens use a phasevarion (ie, a phase-variable regulon) to rapidly and reversibly regulate the expression of many genes, which include known virulence factors, yet the influence of phasevarion-mediated regulation in pathogenesis remains poorly understood. Here we examine the impact of the nontypeable Haemophilus influenzae (NTHI) ModA2 phasevarion on pathogenesis and disease severity in a chinchilla model of experimental otitis media. Chinchillas were challenged with NTHI variant populations that were either inoculated ON and remained ON, inoculated OFF and shifted ON, or inoculated OFF and remained OFF, within the middle ear. We show that populations that shift from OFF to ON within the middle ear induce significantly greater disease severity than populations that are unable to shift. These observations support the importance of phasevarion switching in NTHI pathogenesis and the necessity to considered phasevarion regulation when developing methods to treat and prevent infection.

Indexed as

Antigenic VariationAnimalsAntigens, BacterialChinchillaCohort StudiesDisease Models, AnimalHaemophilus InfectionsHaemophilus influenzaeOtitis MediaSeverity of Illness IndexAntigens, Bacterialanimal modelsbiofilmschinchillaepigeneticsphase variation

Identifiers

PMID27288538
PMCPMC4978376

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.