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ABSTRACT: Objective
To characterise the bladder microbiota of continent adult women.Design
Cross-sectional study of adult women who contributed catheterised urine samples, completed validated symptom questionnaires, and provided demographic data.Setting
US academic medical centre.Population
Well-characterised continent adult women.Methods
Participants contributed symptoms questionnaires, demographic data, and catheterised urine samples that were analysed by enhanced urine culture methodology and 16S rRNA gene sequencing.Main outcome measures
Associations between demographics and microbial community state structures (urotypes, defined by the dominant taxon of each specimen).Results
The bladder microbiota (urobiome) of a control group of 224 continent women were characterised, demonstrating variability in terms of urotype. The most common urotype was Lactobacillus (19%), which did not differ with any demographic. In contrast, the Gardnerella (P < 0.001) and Escherichia (P = 0.005) urotypes were more common in younger and older women, respectively.Conclusions
For urobiome research, enhanced culture methods and/or DNA sequencing are the preferred techniques for bacterial detection. The interpretation of clinical tests, such as the standard urine culture, should incorporate the knowledge that some women have Gardnerella or Escherichia urotypes without evidence of any clinical disorder. Clinical care strategies should preserve or restore the beneficial effects of the native urobiome, as disruption of that microbial community could result in unintended vulnerability to uropathogen invasion or opportunistic pathogen overgrowth. Longitudinal studies of urobiome responses to therapies should be encouraged.Tweetable abstract
In continent adult women bladder microbiome composition differs by age, with relevance for clinical practice.
SUBMITTER: Price TK
PROVIDER: S-EPMC7197444 | biostudies-literature | 2020 Jan
REPOSITORIES: biostudies-literature
Price T K TK Hilt E E EE Thomas-White K K Mueller E R ER Wolfe A J AJ Brubaker L L
BJOG : an international journal of obstetrics and gynaecology 20191009 2
<h4>Objective</h4>To characterise the bladder microbiota of continent adult women.<h4>Design</h4>Cross-sectional study of adult women who contributed catheterised urine samples, completed validated symptom questionnaires, and provided demographic data.<h4>Setting</h4>US academic medical centre.<h4>Population</h4>Well-characterised continent adult women.<h4>Methods</h4>Participants contributed symptoms questionnaires, demographic data, and catheterised urine samples that were analysed by enhanced ...[more]