The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women

Urinary incontinence (UI) is a burdensome condition with high prevalence in middle-aged to older women and an unclear etiology. Advances in our understanding of host-microbe interactions in the urogenital tract have stimulated interest in the urinary microbiome. DNA sequencing and enhanced urine cul...

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Main Authors: Yashini Govender, Iwona Gabriel, Vatche Minassian, Raina Fichorova
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-05-01
Series:Frontiers in Cellular and Infection Microbiology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fcimb.2019.00133/full
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author Yashini Govender
Iwona Gabriel
Vatche Minassian
Raina Fichorova
author_facet Yashini Govender
Iwona Gabriel
Vatche Minassian
Raina Fichorova
author_sort Yashini Govender
collection DOAJ
description Urinary incontinence (UI) is a burdensome condition with high prevalence in middle-aged to older women and an unclear etiology. Advances in our understanding of host-microbe interactions in the urogenital tract have stimulated interest in the urinary microbiome. DNA sequencing and enhanced urine culture suggest that similarly to other mucosal sites, the urinary bladder of healthy individuals harbors resident microbial communities that may play distinct roles in bladder function. This review focused on the urobiome (expanded quantitative urine culture-based or genomic sequencing-based urinary microbiome) associated with different subtypes of UI, including stress, urgency and mixed urinary incontinence, and related syndromes, such as interstitial cystitis and overactive bladder in women, contrasted to urinary tract infections. Furthermore, we examined clinical evidence for the association of the urinary microbiome with responses to pharmacotherapy for amelioration of UI symptoms. Although published studies are still relatively limited in number, study design and sample size, cumulative evidence suggests that certain Lactobacillus species may play a role in maintaining a healthy bladder milieu. Higher bacterial diversity in the absence of Lactobacillus dominance was associated with urgency UI and resistance to anticholinergic treatment for this condition. UI may also facilitate the persistence of uropathogens following antibiotic treatment, which in turn can alter the commensal/potentially beneficial microbial communities. Risk factors of UI, including age, menopausal status, sex steroid hormones, and body mass index may also impact the urinary microbiome. However, it is yet unclear whether the effects of these risks factors on UI are mediated by urinary host-microbe interactions and a mechanistic link with the female urogenital microbiome is still to be established. Strategies for future research are suggested.
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spelling doaj.art-a802029661f147a682a4637e91132f5d2022-12-21T18:31:49ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882019-05-01910.3389/fcimb.2019.00133444568The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in WomenYashini Govender0Iwona Gabriel1Vatche Minassian2Raina Fichorova3Department of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United StatesDivision of Urogynecology, Brigham and Women's Hospital, Boston, MA, United StatesDivision of Urogynecology, Brigham and Women's Hospital, Boston, MA, United StatesDepartment of Obstetrics, Gynecology and Reproductive Biology, Harvard Medical School, Brigham and Women's Hospital, Boston, MA, United StatesUrinary incontinence (UI) is a burdensome condition with high prevalence in middle-aged to older women and an unclear etiology. Advances in our understanding of host-microbe interactions in the urogenital tract have stimulated interest in the urinary microbiome. DNA sequencing and enhanced urine culture suggest that similarly to other mucosal sites, the urinary bladder of healthy individuals harbors resident microbial communities that may play distinct roles in bladder function. This review focused on the urobiome (expanded quantitative urine culture-based or genomic sequencing-based urinary microbiome) associated with different subtypes of UI, including stress, urgency and mixed urinary incontinence, and related syndromes, such as interstitial cystitis and overactive bladder in women, contrasted to urinary tract infections. Furthermore, we examined clinical evidence for the association of the urinary microbiome with responses to pharmacotherapy for amelioration of UI symptoms. Although published studies are still relatively limited in number, study design and sample size, cumulative evidence suggests that certain Lactobacillus species may play a role in maintaining a healthy bladder milieu. Higher bacterial diversity in the absence of Lactobacillus dominance was associated with urgency UI and resistance to anticholinergic treatment for this condition. UI may also facilitate the persistence of uropathogens following antibiotic treatment, which in turn can alter the commensal/potentially beneficial microbial communities. Risk factors of UI, including age, menopausal status, sex steroid hormones, and body mass index may also impact the urinary microbiome. However, it is yet unclear whether the effects of these risks factors on UI are mediated by urinary host-microbe interactions and a mechanistic link with the female urogenital microbiome is still to be established. Strategies for future research are suggested.https://www.frontiersin.org/article/10.3389/fcimb.2019.00133/fullmetagenomicsculturable bacteriaurinary tract infectionstress incontinenceurgency incontinencemixed incontinence
spellingShingle Yashini Govender
Iwona Gabriel
Vatche Minassian
Raina Fichorova
The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
Frontiers in Cellular and Infection Microbiology
metagenomics
culturable bacteria
urinary tract infection
stress incontinence
urgency incontinence
mixed incontinence
title The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
title_full The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
title_fullStr The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
title_full_unstemmed The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
title_short The Current Evidence on the Association Between the Urinary Microbiome and Urinary Incontinence in Women
title_sort current evidence on the association between the urinary microbiome and urinary incontinence in women
topic metagenomics
culturable bacteria
urinary tract infection
stress incontinence
urgency incontinence
mixed incontinence
url https://www.frontiersin.org/article/10.3389/fcimb.2019.00133/full
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