Evidence map›Paper›PMID 22047020›Full record

ArticleBMC microbiology2011

Assessing diversity of the female urine microbiota by high throughput sequencing of 16S rDNA amplicons.

Huma Siddiqui, Alexander J Nederbragt, Karin Lagesen, Stig L Jeansson, Kjetill S Jakobsen

4 registry-linked trialsOpen access · goldAbstract read
In one paragraph

Article in BMC microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 4 registered trials, which are not on this map. Cited by 192 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
192citing papers in PubMed, 1 pooled it
2.8field-weighted citation impact, top 9% 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.

NCT02495389 phase4completednot on this mapstarted 2015, after this paper: background citation

Mirabegron and Urinary Urgency Incontinence: The Clinical Response and the Female Urinary Microbiome

TypeinterventionalSponsorLoyola UniversityRan2015 to 2019Enrolled84ConditionsOveractive BladderArmsMirabegron
NCT02869165 phase4completednot on this mapstarted 2017, after this paper: background citation

The Effects of Vaginal Estrogen and a Nonhormonal Alternative on the Vaginal and Urinary Microbiome in Women With Genitourinary Syndrome of Menopause: A Randomized Controlled Trial

TypeinterventionalSponsorUniversity of LouisvilleRan2017 to 2019Enrolled110ConditionsAtrophic Vaginitis, Menopause, Recurrent Urinary Tract InfectionsArmsConjugated equine estrogen topical cream, Apricot kernel oil
NCT05557279 phase2completednot on this mapstarted 2023, after this paper: background citation

Urinary Microbiome Changes Following Administration of 500 mg of NDS-446 in Women With Dry OAB at 12 Weeks - a Single-center Study

TypeinterventionalSponsorLoyola UniversityRan2023 to 2025Enrolled53ConditionsOveractive BladderArms500 mg NDS-446
NCT06633705 phase4completednot on this mapstarted 2023, after this paper: background citation

Investigation of the Effects of Local Estrogen Administration on Vaginal, Periurethral and Urinary Microbiota in Genitourinary Syndrome

TypeinterventionalSponsorKoc University HospitalRan2023 to 2024Enrolled31ConditionsGenitourinary Syndrome of MenopauseArmsVaginal Cream with Applicator
3 · Its place in the literature

Who cites it

192 citing papers in PubMed, 1 synthesis or guideline pooled it, 333 citations in OpenAlex.

  1. Pooled it
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  9. Genome sequence ofMicrobiology resource announcements · 2026
    Article
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  17. The Urinary Microbiota and the Gut-Bladder Axis in Bladder Cancer.International journal of molecular sciences · 2025
    Review
  18. Article
  19. Article
  20. Role of UropathogenicPathogens (Basel, Switzerland) · 2025
    Review

132 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

5 authors at 1 institution in 1 country.

Huma SiddiquiCentre for Ecological and Evolutionary Synthesis, Department of Biology, University of Oslo, P.O. Box 1066 Blindern, 0316 Oslo, Norway.
Alexander J Nederbragt
Karin Lagesen
Stig L Jeansson
Kjetill S Jakobsen
University of Oslo · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUrine within the urinary tract is commonly regarded as "sterile" in cultivation terms. Here, we present a comprehensive in-depth study of bacterial 16S rDNA sequences associated with urine from healthy females by means of culture-independent high-throughput sequencing techniques.

resultsSequencing of the V1V2 and V6 regions of the 16S ribosomal RNA gene using the 454 GS FLX system was performed to characterize the possible bacterial composition in 8 culture-negative (<100,000 CFU/ml) healthy female urine specimens. Sequences were compared to 16S rRNA databases and showed significant diversity, with the predominant genera detected being Lactobacillus, Prevotella and Gardnerella. The bacterial profiles in the female urine samples studied were complex; considerable variation between individuals was observed and a common microbial signature was not evident. Notably, a significant amount of sequences belonging to bacteria with a known pathogenic potential was observed. The number of operational taxonomic units (OTUs) for individual samples varied substantially and was in the range of 20-500.

conclusionsNormal female urine displays a noticeable and variable bacterial 16S rDNA sequence richness, which includes fastidious and anaerobic bacteria previously shown to be associated with female urogenital pathology.

Indexed as

Genetic VariationMetagenomeAdultBacteriaDatabases, Nucleic AcidDNA, BacterialFemaleHigh-Throughput Nucleotide SequencingHumansRNA, Ribosomal, 16SSequence Analysis, DNAUrineDNA, BacterialRNA, Ribosomal, 16S

Identifiers

PMID22047020
PMCPMC3228714
OpenAlexW2171663607

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.