The Vaginal Microenvironment: The Physiologic Role of Lactobacilli

In addition to being a passage for sperm, menstruum, and the baby, the human vagina and its microbiota can influence conception, pregnancy, the mode and timing of delivery, and the risk of acquiring sexually transmitted infections. The physiological status of the vaginal milieu is important for the...

Full description

Bibliographic Details
Main Authors: Emmanuel Amabebe, Dilly O. C. Anumba
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-06-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fmed.2018.00181/full
_version_ 1819000562261164032
author Emmanuel Amabebe
Dilly O. C. Anumba
author_facet Emmanuel Amabebe
Dilly O. C. Anumba
author_sort Emmanuel Amabebe
collection DOAJ
description In addition to being a passage for sperm, menstruum, and the baby, the human vagina and its microbiota can influence conception, pregnancy, the mode and timing of delivery, and the risk of acquiring sexually transmitted infections. The physiological status of the vaginal milieu is important for the wellbeing of the host as well as for successful reproduction. High estrogen states, as seen during puberty and pregnancy, promote the preservation of a homeostatic (eubiotic) vaginal microenvironment by stimulating the maturation and proliferation of vaginal epithelial cells and the accumulation of glycogen. A glycogen-rich vaginal milieu is a haven for the proliferation of Lactobacilli facilitated by the production of lactic acid and decreased pH. Lactobacilli and their antimicrobial and anti-inflammatory products along with components of the epithelial mucosal barrier provide an effective first line defense against invading pathogens including bacterial vaginosis, aerobic vaginitis-associated bacteria, viruses, fungi and protozoa. An optimal host-microbial interaction is required for the maintenance of eubiosis and vaginal health. This review explores the composition, function and adaptive mechanisms of the vaginal microbiome in health and those disease states in which there is a breach in the host-microbial relationship. The potential impact of vaginal dysbiosis on reproduction is also outlined.
first_indexed 2024-12-20T22:35:17Z
format Article
id doaj.art-cf6e79c14b6e4d7b9e1d70a2e8255a70
institution Directory Open Access Journal
issn 2296-858X
language English
last_indexed 2024-12-20T22:35:17Z
publishDate 2018-06-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Medicine
spelling doaj.art-cf6e79c14b6e4d7b9e1d70a2e8255a702022-12-21T19:24:37ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2018-06-01510.3389/fmed.2018.00181389042The Vaginal Microenvironment: The Physiologic Role of LactobacilliEmmanuel AmabebeDilly O. C. AnumbaIn addition to being a passage for sperm, menstruum, and the baby, the human vagina and its microbiota can influence conception, pregnancy, the mode and timing of delivery, and the risk of acquiring sexually transmitted infections. The physiological status of the vaginal milieu is important for the wellbeing of the host as well as for successful reproduction. High estrogen states, as seen during puberty and pregnancy, promote the preservation of a homeostatic (eubiotic) vaginal microenvironment by stimulating the maturation and proliferation of vaginal epithelial cells and the accumulation of glycogen. A glycogen-rich vaginal milieu is a haven for the proliferation of Lactobacilli facilitated by the production of lactic acid and decreased pH. Lactobacilli and their antimicrobial and anti-inflammatory products along with components of the epithelial mucosal barrier provide an effective first line defense against invading pathogens including bacterial vaginosis, aerobic vaginitis-associated bacteria, viruses, fungi and protozoa. An optimal host-microbial interaction is required for the maintenance of eubiosis and vaginal health. This review explores the composition, function and adaptive mechanisms of the vaginal microbiome in health and those disease states in which there is a breach in the host-microbial relationship. The potential impact of vaginal dysbiosis on reproduction is also outlined.https://www.frontiersin.org/article/10.3389/fmed.2018.00181/fullLactobacilluslactic acidglycogenestrogenvaginal microbiotabacterial vaginosis
spellingShingle Emmanuel Amabebe
Dilly O. C. Anumba
The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
Frontiers in Medicine
Lactobacillus
lactic acid
glycogen
estrogen
vaginal microbiota
bacterial vaginosis
title The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
title_full The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
title_fullStr The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
title_full_unstemmed The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
title_short The Vaginal Microenvironment: The Physiologic Role of Lactobacilli
title_sort vaginal microenvironment the physiologic role of lactobacilli
topic Lactobacillus
lactic acid
glycogen
estrogen
vaginal microbiota
bacterial vaginosis
url https://www.frontiersin.org/article/10.3389/fmed.2018.00181/full
work_keys_str_mv AT emmanuelamabebe thevaginalmicroenvironmentthephysiologicroleoflactobacilli
AT dillyocanumba thevaginalmicroenvironmentthephysiologicroleoflactobacilli
AT emmanuelamabebe vaginalmicroenvironmentthephysiologicroleoflactobacilli
AT dillyocanumba vaginalmicroenvironmentthephysiologicroleoflactobacilli