Evidence map›Paper›PMID 35096658›Full record

ArticleFrontiers in cellular and infection microbiology2021

Sialidase Activity in the Cervicovaginal Fluid Is Associated With Changes in Bacterial Components of

Carolina Sanitá Tafner Ferreira, Camila Marconi, Cristina M G L Parada, Jacques Ravel, Marcia Guimaraes da Silva

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
3.1field-weighted citation impact, top 8% 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, 23 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Bacterial vaginosis.Nature reviews. Disease primers · 2025
    Review
  7. Article
  8. Article
  9. Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  10. The Role ofPathogens (Basel, Switzerland) · 2024
    Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. VaginalFrontiers in cellular and infection microbiology · 2022
    Article
  16. 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

5 authors at 3 institutions in 2 countries.

Carolina Sanitá Tafner FerreiraDepartment of Pathology, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil.
Camila MarconiDepartment of Pathology, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil.
Cristina M G L ParadaDepartment of Nursing, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil.
Jacques RavelInstitute of Genomic Science, University of Maryland School of Medicine, Baltimore, MD, United States.
Marcia Guimaraes da SilvaDepartment of Pathology, Botucatu Medical School, Sao Paulo State University (UNESP), Botucatu, Brazil.
Universidade Estadual Paulista (Unesp) · BRUniversidade Federal do Paraná · BRUniversity of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSialidase activity in the cervicovaginal fluid (CVF) is associated with microscopic findings of bacterial vaginosis (BV). Sequencing of bacterial 16S rRNA gene in vaginal samples has revealed that the majority of microscopic BV cases fit into vaginal community-state type IV (CST IV), which was recently named "molecular-BV." Bacterial vaginosis-associated bacterial species, such as

objectiveTo assess if CVF sialidase activity is associated with changes in bacterial components of CST IV.

methodsOne hundred forty women were cross-sectionally enrolled. The presence of molecular-BV (CST IV) was assessed by V3-V4 16S rRNA sequencing (Illumina). Fluorometric assays were performed using 2-(4-methylumbelliferyl)-α-D-N-acetylneuraminic acid (MUAN) for measuring sialidase activity in CVF samples. Linear discriminant analysis effect size (LEfSe) was performed to identify the differently enriched bacterial taxa in molecular-BV according to the status of CVF sialidase activity.

resultsForty-four participants (31.4%) had molecular-BV, of which 30 (68.2%) had sialidase activity at detectable levels. A total of 24 bacterial taxa were enriched in the presence of sialidase activity, while just two taxa were enriched in sialidase-negative samples.

conclusionSialidase activity in molecular-BV is associated with changes in bacterial components of the local microbiome. This association should be further investigated, since it may result in diminished local defenses against pathogens.

Indexed as

MicrobiotaVaginosis, BacterialFemaleHumansLactobacillusNeuraminidaseRNA, Ribosomal, 16SVaginaNeuraminidaseRNA, Ribosomal, 16S16S rRNAbacterial vaginosisGardnerellasialidasesvaginal microbiota

Identifiers

PMID35096658
PMCPMC8793624
OpenAlexW4206485674

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.