Women’s Health: Study Shows Vaginal Health Can Be Enhanced By Probiotics With Correct Lactobacillus Strains
Source: Women's Health Jun 05, 2020 3 years, 10 months, 2 weeks, 6 days, 13 hours, 47 minutes ago
Women’s Health: A new study in the journal
PLOS Pathogens by Dr Jo-Ann Passmore from the University of Cape Town, and her research teammates show that vaginal Lactobacillus bacterial strains largely perform better than strains currently used in probiotics for vaginal health.
https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1008559
The study findings suggest that a vaginal health probiotic that includes top-performing vaginal Lactobacillus strains may improve treatment options for bacterial vaginosis.
It has been found that Lactobacillus species in the lower reproductive tract of healthy women help lower vaginal pH and protect against sexually transmitted infections. But women commonly suffer from bacterial vaginosis, which is a disruption in the optimal Lactobacillus-dominated genital microbiota, resulting in higher vaginal pH as well as vaginal discharge and inflammation.
Furthermore bacterial vaginosis is associated with adverse pregnancy outcomes and a higher risk of sexually transmitted infections, including HIV.
Though antibiotics are the standard of care for bacterial vaginosis, most cases recur within six months. Probiotics that include Lactobacilli have been explored to improve the durability of treatment, but the majority of products do not contain species commonly found in the vagina. There is an urgent need for the development of additional well-designed probiotics for vaginal health.
In the study, Dr Passmore and her team compared 57 vaginal Lactobacillus strains from young African women to strains from commercial probiotic products for vaginal health. The team analyzed their growth at varying pH values ability to lower pH and produce antimicrobial products, pathogen inhibition, and susceptibility to antibiotics. Several vaginal strains exhibited better probiotic profiles than commercial strains, suggesting that they would be beneficial in the development of probiotic treatments for bacterial vaginosis.
In addition, whole-genome sequencing of the five best-performing vaginal strains revealed that they would likely be safe and not pose a risk of antimicrobial resistance.
The medical researchers said that a wider range of well-characterized Lactobacillus-containing probiotics may improve treatment outcomes for bacterial vaginosis, and lower the risk of adverse pregnancy outcomes and sexually transmitted infections.
Dr Passmore commented, "Few probiotics aimed at promoting vaginal health contain Lactobacillus spp. that commonly colonizes the lower genital tracts of African women. The discovery and use of novel vaginal probiotic strains in such women may improve the durability of bacterial vaginosis treatments and towards this our research evaluated a multitude of vaginal Lactobacillus strains and identified some that should be tested as vaginal probiotics in clinical trials"
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