Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study

Background and aims: Vaginal microbiomes have been classified into five different general categories, termed Community State Type (CSTs), with CST-III and CST-IV often associated with vaginal dysbiosis which makes women more prone to recurrent infections and assisted reproductive technology (ART) fa...

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Main Authors: Giovanna Cocomazzi, Viviana Contu, Silvia De Stefani, Lino Del Pup, Matteo Buccheri, Monica Antinori, Lodovico Parmegiani, Daniele De Ruvo, Francesco Marino, Edy Virgili, Christine Allen, Simone Palini, Walter Ciampaglia, Matteo Cerboneschi, Domenico Baldini, Giorgio Maria Baldini, Valerio Pazienza
Format: Article
Language:English
Published: MDPI AG 2025-02-01
Series:Microorganisms
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Online Access:https://www.mdpi.com/2076-2607/13/3/547
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author Giovanna Cocomazzi
Viviana Contu
Silvia De Stefani
Lino Del Pup
Matteo Buccheri
Monica Antinori
Lodovico Parmegiani
Daniele De Ruvo
Francesco Marino
Edy Virgili
Christine Allen
Simone Palini
Walter Ciampaglia
Matteo Cerboneschi
Domenico Baldini
Giorgio Maria Baldini
Valerio Pazienza
author_facet Giovanna Cocomazzi
Viviana Contu
Silvia De Stefani
Lino Del Pup
Matteo Buccheri
Monica Antinori
Lodovico Parmegiani
Daniele De Ruvo
Francesco Marino
Edy Virgili
Christine Allen
Simone Palini
Walter Ciampaglia
Matteo Cerboneschi
Domenico Baldini
Giorgio Maria Baldini
Valerio Pazienza
author_sort Giovanna Cocomazzi
collection DOAJ
description Background and aims: Vaginal microbiomes have been classified into five different general categories, termed Community State Type (CSTs), with CST-III and CST-IV often associated with vaginal dysbiosis which makes women more prone to recurrent infections and assisted reproductive technology (ART) failure. Since a healthy microbiome is one of the key steps for successful reproduction, we investigated the impact of modulating the vaginal microbiota through the oral administration of probiotic formula consisting of a consortium of vaginal-specific lactobacilli and prebiotics (Personal Flora 2<sup>®</sup>). Methods: We recruited 32 women who had previous failed IVF cycles and were scheduled to undergo ART. We examined the composition of the vaginal microbiota before and after oral probiotic supplementation using 16S ribosomal RNA (rRNA) sequencing technology. Results: Our data show a noticeable modulation of the vaginal microbiome upon probiotic supplementation. In particular, precision probiotic intervention lowers the species diversity, favoring the dominance of <i>Lactobacillus</i> (<i>p</i> = 0.015) and <i>Bifidobacterium</i> (<i>p</i> = 0.000) whilst decreasing the percentage of <i>Atopobium</i> (<i>p</i> = 0.003), <i>Gardnerella</i> (<i>p</i> = 0.022), and <i>Prevotella</i> (<i>p</i> = 0.000). Conclusions: Although CST-III and CST-IV are generally considered detrimental, gynecologists should not refrain from performing IVF in these women if they have been previously subjected to a consortium of precision probiotics treatments, as the administration of specific probiotics reduces the presence of pathogenic bacteria promoting the increase in lactobacilli associated with a healthy vaginal ecosystem, which could impact pregnancy success.
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spelling doaj-art-3c7ec2ca885f4b0d8048c1f04baf5e542025-08-20T02:42:22ZengMDPI AGMicroorganisms2076-26072025-02-0113354710.3390/microorganisms13030547Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional StudyGiovanna Cocomazzi0Viviana Contu1Silvia De Stefani2Lino Del Pup3Matteo Buccheri4Monica Antinori5Lodovico Parmegiani6Daniele De Ruvo7Francesco Marino8Edy Virgili9Christine Allen10Simone Palini11Walter Ciampaglia12Matteo Cerboneschi13Domenico Baldini14Giorgio Maria Baldini15Valerio Pazienza16Division of Gastroenterology, Fondazione IRCCS-Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, FG, ItalyIntegrative Medicine Unit, Humanitas Gradenigo, Corso Regina Margherita 8/10, 10153 Torino, TO, ItalyClinica Nuova Ricerca, Via Settembrini 17/h, 47923 Rimini, RN, ItalyGynecological Endocrinology and Fertility, University Sanitary Agency Friuli Central (ASUFC), Via San Valentino 18, 33100 Udine, UD, ItalyNew Fertility Group, Via Portuense ROMA, 00149 Rome, RM, ItalyRaprui Clinic, Via Timavo, 2, 00195 Roma, RM, ItalyNext Fertility GynePro, NextClinics International, Via T. Cremona 8, 40137 Bologna, BO, ItalyGynaecology, Obstetrics and Reproductive Medicine Affidea Promea, Via Menabrea 14, 10126 Torino, TO, ItalyAssociation for Research on Integrative Oncological Therapies (ARTOI), Via Ludovico Micara 73, 00165 Roma, RM, ItalySchool of Biosciences and Veterinary Medicine, University of Camerino, 62032 Camerino, MC, ItalyReproductive Laboratory Services, LLC, 3500 S. Dupont Highway, Dover, DE 19901, USAOspedale “Cervesi” di Cattolica-AUSL Romagna, Via Ludwig Van Beethoven, 1, 47841 Cattolica, RN, ItalyNext Fertility GynePro, NextClinics International, Via T. Cremona 8, 40137 Bologna, BO, ItalyNEXT Genomics S.r.l, Via Madonna del Piano 6, 50019 Sesto Fiorentino, FI, ItalyIVF Center, Momò Fertilife, Via Cala dell’Arciprete, 76011 Bisceglie, BT, ItalyIVF Center, Momò Fertilife, Via Cala dell’Arciprete, 76011 Bisceglie, BT, ItalyDivision of Gastroenterology, Fondazione IRCCS-Casa Sollievo della Sofferenza, 71013 San Giovanni Rotondo, FG, ItalyBackground and aims: Vaginal microbiomes have been classified into five different general categories, termed Community State Type (CSTs), with CST-III and CST-IV often associated with vaginal dysbiosis which makes women more prone to recurrent infections and assisted reproductive technology (ART) failure. Since a healthy microbiome is one of the key steps for successful reproduction, we investigated the impact of modulating the vaginal microbiota through the oral administration of probiotic formula consisting of a consortium of vaginal-specific lactobacilli and prebiotics (Personal Flora 2<sup>®</sup>). Methods: We recruited 32 women who had previous failed IVF cycles and were scheduled to undergo ART. We examined the composition of the vaginal microbiota before and after oral probiotic supplementation using 16S ribosomal RNA (rRNA) sequencing technology. Results: Our data show a noticeable modulation of the vaginal microbiome upon probiotic supplementation. In particular, precision probiotic intervention lowers the species diversity, favoring the dominance of <i>Lactobacillus</i> (<i>p</i> = 0.015) and <i>Bifidobacterium</i> (<i>p</i> = 0.000) whilst decreasing the percentage of <i>Atopobium</i> (<i>p</i> = 0.003), <i>Gardnerella</i> (<i>p</i> = 0.022), and <i>Prevotella</i> (<i>p</i> = 0.000). Conclusions: Although CST-III and CST-IV are generally considered detrimental, gynecologists should not refrain from performing IVF in these women if they have been previously subjected to a consortium of precision probiotics treatments, as the administration of specific probiotics reduces the presence of pathogenic bacteria promoting the increase in lactobacilli associated with a healthy vaginal ecosystem, which could impact pregnancy success.https://www.mdpi.com/2076-2607/13/3/547vaginal microbiomeprobioticsinfertility
spellingShingle Giovanna Cocomazzi
Viviana Contu
Silvia De Stefani
Lino Del Pup
Matteo Buccheri
Monica Antinori
Lodovico Parmegiani
Daniele De Ruvo
Francesco Marino
Edy Virgili
Christine Allen
Simone Palini
Walter Ciampaglia
Matteo Cerboneschi
Domenico Baldini
Giorgio Maria Baldini
Valerio Pazienza
Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
Microorganisms
vaginal microbiome
probiotics
infertility
title Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
title_full Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
title_fullStr Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
title_full_unstemmed Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
title_short Refining Unfavorable Vaginal Microbial Community in Infertile Women Subjected to Precision Probiotic Intervention: An Exploratory Single-Arm, Prospective, Open-Label, Interventional Study
title_sort refining unfavorable vaginal microbial community in infertile women subjected to precision probiotic intervention an exploratory single arm prospective open label interventional study
topic vaginal microbiome
probiotics
infertility
url https://www.mdpi.com/2076-2607/13/3/547
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