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Vaginal Aging-What We Know and What We Do Not Know.

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Vaginal aging involves estrogen loss, microbiome shifts, and DNA methylation changes, impacting women

Keywords:
DNA methylationTET proteinestrogensmenopausevaginal microbiota

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Area of Science:

  • Gynecology
  • Molecular Biology
  • Microbiology

Background:

  • Vaginal aging and genitourinary syndrome of menopause significantly impact women's quality of life.
  • Key factors include estrogen deficiency, microbiome alterations, and genetic changes like DNA methylation.
  • Menopause is characterized by decreased Lactobacillus and increased pathogenic bacteria.

Purpose of the Study:

  • To explore the multifactorial process of vaginal aging.
  • To investigate the roles of estrogen deficiency, microbiome changes, and DNA methylation in vaginal aging.
  • To elucidate the molecular mechanisms underlying vaginal aging.

Main Methods:

  • Review of existing literature on vaginal aging.
  • Analysis of hormonal changes during menopause.
  • Examination of shifts in vaginal microbiome composition.
  • Investigation of DNA methylation patterns and TET (ten-eleven translocation) expression.

Main Results:

  • Estrogen deficiency leads to reduced vaginal epithelial permeability, perfusion, and elastin, causing dryness and atrophy.
  • A decrease in beneficial Lactobacillus and an increase in pathogenic bacteria are observed during menopause.
  • Molecular changes, including potential alterations in cytosine methylation and TET expression, are implicated but not fully understood.

Conclusions:

  • Vaginal aging is a complex process influenced by hormonal, microbial, and genetic factors.
  • The interplay between DNA methylation, hormonal fluctuations, and the vaginal microbiome requires further investigation.
  • Understanding these mechanisms is crucial for addressing vaginal aging and improving women's health outcomes.