Evidence map›Paper›PMID 31965142›Full record

ArticleBiology of reproduction2020

Chronic testicular Chlamydia muridarum infection impairs mouse fertility and offspring development†.

Emily R Bryan, Kate A Redgrove, Alison R Mooney, Bettina P Mihalas, Jessie M Sutherland, Alison J Carey, Charles W Armitage, Logan K Trim, Avinash Kollipara, Peter B M Mulvey and 6 more

Open access · bronzeAbstract read
In one paragraph

Article in Biology of reproduction, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 10% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. A VCG-Based MultiepitopeBiomedicines · 2025
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  4. Review
  5. Article
  6. Review
  7. Interplay between male gonadal function and overall male health.Journal of basic and clinical physiology and pharmacology · 2024
    Review
  8. Review
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Expert review of vaccines · 2021
    Article
  16. Review
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

16 authors at 5 institutions in 3 countries.

Emily R BryanSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Kate A RedgroveSchool of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia.
Alison R MooneySchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Bettina P MihalasSchool of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia.
Jessie M SutherlandSchool of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia.
Alison J CareySchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Charles W ArmitageSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Logan K TrimSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Avinash KolliparaSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Peter B M MulveySchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Ella PalframanSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Gemma TrollopeSchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Kristofor BogoevskiScientific Services, Histology Services, QIMR Berghofer Medical Research Institute, Herston, Queensland, Australia.
Robert McLachlanDepartment of Obstetrics and Gynaecology, Hudson Institute of Medical Research, Monash Medical Centre, Monash University, Clayton, Victoria, Australia.
Eileen A McLaughlinSchool of Environmental and Life Sciences, Faculty of Science, The University of Newcastle, University Drive, Callaghan, New South Wales, Australia.
Kenneth W BeagleySchool of Biomedical Sciences and Institute of Health & Biomedical Innovation, Queensland University of Technology, Herston, Queensland, Australia.
Queensland University of Technology · AUUniversity of Newcastle Australia · AUMonash University · AUQIMR Berghofer Medical Research Institute · AUWestern Sydney University · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

With approximately 131 million new genital tract infections occurring each year, Chlamydia is the most common sexually transmitted bacterial pathogen worldwide. Male and female infections occur at similar rates and both cause serious pathological sequelae. Despite this, the impact of chlamydial infection on male fertility has long been debated, and the effects of paternal chlamydial infection on offspring development are unknown. Using a male mouse chronic infection model, we show that chlamydial infection persists in the testes, adversely affecting the testicular environment. Infection increased leukocyte infiltration, disrupted the blood:testis barrier and reduced spermiogenic cell numbers and seminiferous tubule volume. Sperm from infected mice had decreased motility, increased abnormal morphology, decreased zona-binding capacity, and increased DNA damage. Serum anti-sperm antibodies were also increased. When both acutely and chronically infected male mice were bred with healthy female mice, 16.7% of pups displayed developmental abnormalities. Female offspring of chronically infected sires had smaller reproductive tracts than offspring of noninfected sires. The male pups of infected sires displayed delayed testicular development, with abnormalities in sperm vitality, motility, and sperm-oocyte binding evident at sexual maturity. These data suggest that chronic testicular Chlamydia infection can contribute to male infertility, which may have an intergenerational impact on sperm quality.

Indexed as

Chlamydia muridarumAnimalsChlamydia InfectionsFemaleFertilityInfertility, MaleMaleMicePregnancyPrenatal Exposure Delayed EffectsSperm MotilityTestisChlamydiamale infertilityoffspring developmentsperm DNA damageSTI

Identifiers

PMID31965142
PMCPMC7124966
OpenAlexW3002001308

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.