Is there a role for probiotics in the prevention of preterm birth?

Siwen Yang1, Gregor Reid2, John R G Challis3

  • 1Department of Physiology, Obstetrics and Gynecology, University of Toronto , Toronto, ON , Canada ; Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital , Toronto, ON , Canada.

Insights

Preterm birth (PTB) is linked to vaginal microbiome changes and inflammation. Lactobacillus probiotics may help prevent PTB by restoring vaginal health and reducing inflammation.

Area of Science:

  • Reproductive health
  • Microbiome research
  • Immunology

Background:

  • Preterm birth (PTB) remains a significant global health concern.
  • Inflammation, indicated by elevated cytokines and chemokines, and an altered maternal vaginal microbiome are implicated in PTB pathogenesis.
  • Lactobacillus depletion, common in bacterial vaginosis (BV), correlates with increased PTB risk.

Purpose of the Study:

  • To investigate the role of the vaginal microbiome in PTB.
  • To explore the potential of Lactobacillus probiotics in preventing PTB.
  • To understand the anti-inflammatory mechanisms of lactobacilli.

Main Methods:

  • Review of existing literature on PTB, vaginal microbiome, and Lactobacillus probiotics.
  • Analysis of the association between vaginal dysbiosis and PTB risk.
  • Examination of the anti-inflammatory properties of lactobacilli.

Main Results:

  • An aberrant vaginal microbiome composition may trigger PTB.
  • Lactobacillus probiotics show potential in reducing BV and inflammation.
  • Clinical studies, though not yet powered for PTB, suggest merit in this approach.

Conclusions:

  • The vaginal microbiome plays a critical role in PTB.
  • Lactobacillus probiotics offer a promising strategy for PTB prevention.
  • Further research is warranted to confirm the efficacy of probiotics in large-scale clinical trials.

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