Evidence map›Paper›PMID 28241058›Full record

ArticlePloS one2017

The presence of the putative Gardnerella vaginalis sialidase A gene in vaginal specimens is associated with bacterial vaginosis biofilm.

Liselotte Hardy, Vicky Jespers, Magelien Van den Bulck, Jozefien Buyze, Lambert Mwambarangwe, Viateur Musengamana, Mario Vaneechoutte, Tania Crucitti

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
6.3field-weighted citation impact, top 3% 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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 103 citations in OpenAlex.

  1. Pooled it
  2. Bacterial Load ofMicroorganisms · 2026
    Article
  3. Review
  4. Article
  5. Review
  6. Sialidases derived frombioRxiv : the preprint server for biology · 2025
    Article
  7. Review
  8. Review
  9. Engineered Tissue Models to Decode Host-Microbiota Interactions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  10. Article
  11. Cannabidiol (CBD) Acts as an Antioxidant onAntibiotics (Basel, Switzerland) · 2025
    Article
  12. Review
  13. Article
  14. Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

10 more citing papers are in PubMed but not listed here.

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 at 2 institutions in 1 country.

Liselotte HardyHIV and Sexual Health Group, Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.ORCID http://orcid.org/0000-0002-8785-5081
Vicky JespersHIV and Sexual Health Group, Department of Public Health, Institute of Tropical Medicine, Antwerp, Belgium.
Magelien Van den BulckHIV/STI Reference Laboratory, Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Jozefien BuyzeClinical Trials Unit, Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Lambert MwambarangweRinda Ubuzima, Kigali, Rwanda.
Viateur MusengamanaRinda Ubuzima, Kigali, Rwanda.
Mario VaneechoutteLaboratory Bacteriology Research, Faculty of Medicine & Health Sciences, University of Ghent, Ghent, Belgium.
Tania CrucittiHIV/STI Reference Laboratory, Department of Clinical Sciences, Institute of Tropical Medicine, Antwerp, Belgium.
Instituut voor Tropische Geneeskunde · BEGhent University · BE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bacterial vaginosis (BV) is a difficult-to-treat recurrent condition in which health-associated lactobacilli are outnumbered by other anaerobic bacteria, such as Gardnerella vaginalis. Certain genotypes of G. vaginalis can produce sialidase, while others cannot. Sialidase is known to facilitate the destruction of the protective mucus layer on the vaginal epithelium by hydrolysis of sialic acid on the glycans of mucous membranes. This process possibly facilitates adhesion of bacterial cells on the epithelium since it has been linked with the development of biofilm in other pathogenic conditions. Although it has not been demonstrated yet, it is probable that G. vaginalis benefits from this mechanism by attaching to the vaginal epithelium to initiate biofilm development. In this study, using vaginal specimens of 120 women enrolled in the Ring Plus study, we assessed the association between the putative G. vaginalis sialidase A gene by quantitative polymerase chain reaction (qPCR), the diagnosis of BV according to Nugent score, and the occurrence of a BV-associated biofilm dominated by G. vaginalis by fluorescence in situ hybridisation (FISH). We detected the putative sialidase A gene in 75% of the G. vaginalis-positive vaginal specimens and found a strong association (p<0.001) between the presence of a G. vaginalis biofilm, the diagnosis of BV according to Nugent and the detection of high loads of the G. vaginalis sialidase A gene in the vaginal specimens. These results could redefine diagnosis of BV, and in addition might guide research for new treatment.

Indexed as

BiofilmsAdolescentAdultFemaleGardnerella vaginalisHumansHydrolysisIn Situ Hybridization, FluorescenceMicroscopy, ConfocalMucous MembraneN-Acetylneuraminic AcidNeuraminidasePeptide Nucleic AcidsPolymerase Chain ReactionPolysaccharidesRwandaN-Acetylneuraminic AcidNeuraminidasePeptide Nucleic AcidsPolysaccharides

Identifiers

PMID28241058
PMCPMC5328246
OpenAlexW2593750454

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.