Evidence map›Paper›PMID 23679038›Full record

ArticleBMC infectious diseases2013

Longitudinal genetic analyses of Staphylococcus aureus nasal carriage dynamics in a diverse population.

Gowrishankar Muthukrishnan, Ryan P Lamers, Austin Ellis, Vanathy Paramanandam, Alana B Persaud, Sergio Tafur, Christopher L Parkinson, Alexander M Cole

Abstract read
In one paragraph

Article in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing 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

32 citing papers in PubMed.

  1. Article
  2. Nasal microbiome inhabitants with anti-Microbiology spectrum · 2025
    Article
  3. Article
  4. Article
  5. Article
  6. mBio · 2023
    Article
  7. Article
  8. Phylodynamic signatures in the emergence of community-associated MRSA.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
  10. Methicillin-resistantFuture science OA · 2022
    Article
  11. Ecology and Genetic Lineages of NasalPathogens (Basel, Switzerland) · 2021
    Review
  12. Article
  13. The SrrAB two-component system regulatesProceedings of the National Academy of Sciences of the United States of America · 2020
    Article
  14. Article
  15. Patterns and Predictors ofJournal of clinical microbiology · 2019
    Article
  16. Article
  17. Longitudinal Population Dynamics ofFrontiers in genetics · 2019
    Article
  18. Face Mask Use and Persistence of Livestock-associatedEnvironmental health perspectives · 2018
    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

8 authors.

Gowrishankar MuthukrishnanDepartment of Molecular Biology and Microbiology, Burnett School of Biomedical Sciences, University of Central Florida College of Medicine, 4000 Central Florida Boulevard, Orlando, FL 32816, USA.
Ryan P Lamers
Austin Ellis
Vanathy Paramanandam
Alana B Persaud
Sergio Tafur
Christopher L Parkinson
Alexander M Cole

Funding

Nasal carriage of S. aureus: host-pathogen interactionsR01AI060753 · NIAID · UNIVERSITY OF CENTRAL FLORIDA · PI COLE, ALEXANDER MICHAEL · 2006 to 2010
$1.6M
NIAID NIH HHS AI060753
6 · The paper itself

Abstract

backgroundStaphylococcus aureus (SA) nasal colonization plays a critical role in the pathogenesis of staphylococcal infections and SA eradication from the nares has proven to be effective in reducing endogenous infections. To understand SA nasal colonization and its relation with consequent disease, assessment of nasal carriage dynamics and genotypic diversity among a diverse population is a necessity.

resultsWe have performed extensive longitudinal monitoring of SA nasal carriage isolates in 109 healthy individuals over a period of up to three years. Longitudinal sampling revealed that 24% of the individuals were persistent SA nasal carriers while 32% were intermittent. To assess the genetic relatedness between different SA isolates within our cohort, multi locus sequence typing (MLST) was performed. MLST revealed that not only were strains colonizing intermittent and persistent nasal carriers genetically similar, belonging to the same clonal complexes, but strain changes within the same host were also observed over time for both types of carriers. More highly discriminating genetic analyses using the hypervariable regions of staphylococcal protein A and clumping factor B virulence genes revealed no preferential colonization of specific SA strains in persistent or intermittent carriers. Moreover, we observed that a subset of persistent and intermittent carriers retained clinically relevant community-acquired methicillin-resistant SA (CA-MRSA) strains in their nares over time.

conclusionsThe findings of this study provides added perspective on the nasal carriage dynamics between strains colonizing persistent and intermittent carriers; an area currently in need of assessment given that persistent carriers are at greater risk of autoinfection than intermittent carriers.

Indexed as

Carrier StateChi-Square DistributionCross InfectionFemaleGenes, BacterialGenotyping TechniquesHumansLongitudinal StudiesMaleMultilocus Sequence TypingNasal CavityPhylogenyStaphylococcal InfectionsStaphylococcus aureus

Identifiers

PMID23679038
PMCPMC3673815

What OpenQuestion holds

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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.