Evidence map›Paper›PMID 22943883›Full record

ArticleMicrobes and infection2012

Chlamydia muridarum enters a viable but non-infectious state in amoxicillin-treated BALB/c mice.

R Phillips Campbell, J Kintner, J Whittimore, R V Schoborg

Abstract read
In one paragraph

Article in Microbes and infection, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
–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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Sexually Transmitted Infections Treatment Guidelines, 2021.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2021
    Guideline
  2. Sexually transmitted diseases treatment guidelines, 2015.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2015
    Guideline
  3. Article
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  5. Article
  6. Observational
  7. Article
  8. Review
  9. Metabolic dormancy inInfection and immunity · 2024
    Article
  10. Microbiology spectrum · 2023
    Article
  11. Review
  12. Beta lactamase-producingCurrent research in microbial sciences · 2023
    Article
  13. The hormonal environment and estrogen receptor signaling altersFrontiers in cellular and infection microbiology · 2022
    Article
  14. Article
  15. Article
  16. European journal of microbiology & immunology · 2019
    Article
  17. Microorganisms · 2019
    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

4 authors.

R Phillips CampbellDepartment of Biomedical Sciences, East Tennessee State University, Quillen College of Medicine, Johnson City, TN 37614, USA.
J Kintner
J Whittimore
R V Schoborg

Funding

CHARACTERIZATION OF A NOVEL HOST PATHWAY THAT REGULATES CHLAMYDIAL DEVELOPMENTR01AI095637 · NIAID · EAST TENNESSEE STATE UNIVERSITY · PI SCHOBORG, ROBERT V. · 2011 to 2014
$1.5M
Development of an in vivo model of chlamydial persistence.R21AI082322 · NIAID · EAST TENNESSEE STATE UNIVERSITY · PI SCHOBORG, ROBERT V. · 2009 to 2010
$387k
Can Chlamydial Infection Increase Host Mutation Frequency?R15AI078373 · NIAID · EAST TENNESSEE STATE UNIVERSITY · PI SCHOBORG, ROBERT V. · 2009 to 2009
$211k
NIAID NIH HHS R01 AI095637NIAID NIH HHS R15 AI078373NIAID NIH HHS R15 #AI078373-01A1NIAID NIH HHS R21 AI082322NIAID NIH HHS R21 #AI082322-01
6 · The paper itself

Abstract

In culture, exposure to penicillin and other stressors induce chlamydiae to enter a non-infectious but viable state termed persistence. Chlamydiae may reenter their normal developmental cycle after stressor removal. Though aberrant RB similar to those present in culture models of persistence have been observed within infected tissues, the existence of persistent chlamydiae has not been definitively demonstrated in vivo. As a result, the role of persistent organisms in pathogenesis is undefined. In order to establish an experimentally tractable model of in vivo persistence, Chlamydia muridarum vaginally-infected mice were gavaged with either water or amoxicillin (amox). Vaginal swabs were collected for chlamydial titration and RNA isolated for quantification of pre-16s rRNA. Uterine tissue was analyzed by transmission electron microscopy (TEM). Although amox-treatment reduced vaginal shedding by >99%, C. muridarum pre-16s rRNA accumulation was unchanged by treatment. These data indicate that the amox-exposed organisms were viable but not infectious. Furthermore, TEM analyses demonstrated that inclusions in amox-treated animals contained primarily large, aberrant RB, but those observed in untreated control animals were normal. Collectively, these data suggest that amoxicillin treatment induces C. muridarum to enter the persistent state in vivo. This model also represents the first experimentally tractable animal model of chlamydial persistence.

Indexed as

AmoxicillinAnimalsAnti-Bacterial AgentsBacterial SheddingCell LineChlamydia InfectionsChlamydia muridarumDisease Models, AnimalFemaleHumansMiceMice, Inbred BALB CMicrobial ViabilityMicroscopy, Electron, TransmissionRNA, BacterialUterusAmoxicillinAnti-Bacterial AgentsRNA, Bacterial

Identifiers

PMID22943883
PMCPMC3654801

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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.