Evidence map›Paper›PMID 22046340›Full record

ArticlePloS one2011

Exploring the diversity of Gardnerella vaginalis in the genitourinary tract microbiota of monogamous couples through subtle nucleotide variation.

A Murat Eren, Marcela Zozaya, Christopher M Taylor, Scot E Dowd, David H Martin, Michael J Ferris

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 119 papers.

0numbers the graph read from it
0cells of the map it votes in
119citing papers in PubMed
11.9field-weighted citation impact, top 1% 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

119 citing papers in PubMed, 220 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Neither vaginal nor buccal administration of 800 μg misoprostol alters mucosal and systemic immune activation or the cervicovaginal microbiome: a pilot study.The European journal of contraception & reproductive health care : the official journal of the European Society of Contraception · 2016
    Trial
  4. Trial
  5. Trial
  6. HIV Transmission and Immunology of the Male Reproductive Tract.American journal of reproductive immunology (New York, N.Y. : 1989) · 2026
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Management of Recurrent Vaginitis.Current obstetrics and gynecology reports · 2026
    Review
  12. Article
  13. Bacterial vaginosis.Nature reviews. Disease primers · 2025
    Review
  14. Article
  15. Review
  16. Understanding the Associations of Urogenital Microbiomes With Fertility and In Vitro Fertilization.American journal of reproductive immunology (New York, N.Y. : 1989) · 2025
    Review
  17. Article
  18. Article
  19. mSystems · 2024
    Article
  20. Article

59 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

6 authors at 5 institutions in 1 country.

A Murat ErenDepartment of Computer Science, University of New Orleans, New Orleans, Louisiana, United States of America. meren@mbl.edu
Marcela Zozaya
Christopher M Taylor
Scot E Dowd
David H Martin
Michael J Ferris
Louisiana State University Health Sciences Center New Orleans · USArkansas Agricultural Experiment Station · USChildren's Hospital of New Orleans · USMarine Biological Laboratory · USUniversity of New Orleans · US

Funding

Microbial Correlates of Bacterial Vaginosis Treatment Failure and Recurrence in HR01AI079071 · NIAID · CHILDREN'S HOSPITAL (NEW ORLEANS) · PI FERRIS, MICHAEL J · 2009 to 2012
$1.7M
Microbial Correlates of Bacterial Vaginosis Treatment Failure and Recurrence in HR56AI079071 · NIAID · CHILDREN'S HOSPITAL (NEW ORLEANS) · PI FERRIS, MICHAEL J, MARTIN, DAVID H. · 2008 to 2008
$392k
NIAID NIH HHS 5R01AI79071-2NIAID NIH HHS R01 AI079071NIAID NIH HHS R56 AI079071
6 · The paper itself

Abstract

backgroundBacterial vaginosis (BV) is an enigmatic disease of unknown origin that affects a large percentage of women. The vaginal microbiota of women with BV is associated with serious sequelae, including abnormal pregnancies. The etiology of BV is not fully understood, however, it has been suggested that it is transmissible, and that G. vaginalis may be an etiological agent. Studies using enzymatic assays to define G. vaginalis biotypes, as well as more recent genomic comparisons of G. vaginalis isolates from symptomatic and asymptomatic women, suggest that particular G. vaginalis strains may play a key role in the pathogenesis of BV. METHODOLOGY/PRINCIPAL

findingsTo explore G. vaginalis diversity, distribution and sexual transmission, we developed a Shannon entropy-based method to analyze low-level sequence variation in 65,710 G. vaginalis 16S rRNA gene segments that were PCR-amplified from vaginal samples of 53 monogamous women and from urethral and penile skin samples of their male partners. We observed a high degree of low-level diversity among G. vaginalis sequences with a total of 46 unique sequence variants (oligotypes), and also found strong correlations of these oligotypes between sexual partners. Even though Gram stain-defined normal and some Gram stain-defined intermediate oligotype profiles clustered together in UniFrac analysis, no single G. vaginalis oligotype was found to be specific to BV or normal vaginal samples.

conclusionsThis study describes a novel method for investigating G. vaginalis diversity at a low level of taxonomic discrimination. The findings support cultivation-based studies that indicate sexual partners harbor the same strains of G. vaginalis. This study also highlights the fact that a few, reproducible nucleotide variations within the 16S rRNA gene can reveal clinical or epidemiological associations that would be missed by genus-level or species-level categorization of 16S rRNA data.

Indexed as

Genetic VariationSexual PartnersBase SequenceFemaleGardnerella vaginalisHumansMaleMetagenomePolymorphism, Single NucleotideRNA, Ribosomal, 16SSexual BehaviorSpecies SpecificityUrogenital SystemVaginosis, BacterialRNA, Ribosomal, 16S

Identifiers

PMID22046340
PMCPMC3201972
OpenAlexW2045587630

What OpenQuestion holds

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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.