{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,5]],"date-time":"2025-11-05T05:37:17Z","timestamp":1762321037276,"version":"build-2065373602"},"reference-count":54,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T00:00:00Z","timestamp":1762041600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"with the Emerging Research Groups project","award":["(CIGE\/2022\/122)"],"award-info":[{"award-number":["(CIGE\/2022\/122)"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>This study explores the potential of novel Bifidobacterium isolates as targeted probiotic supplements for children with cystic fibrosis (CF), a condition often associated with gut dysbiosis. Five strains of Bifidobacterium genus (B. animalis IATA01, B. pseudocatenulatum IATA35, B. longum IATA02, B. bifidum IATA13, and B. longum IATA05) isolated from maternal\u2013infant fecal samples were assessed in vitro following the FAO\/WHO guidelines. Their probiotic potential was evaluated through simulated gastrointestinal digestion in the CF context, their adhesion to mucin, and their carbohydrate fermentation capacity. Additionally, their impact on colonic microbiota modulation was analyzed using static in vitro colonic fermentation with fecal inocula from four pediatric patients with CF to assess the presence of different bacterial groups associated with dysbiosis via qPCR and short-chain fatty acid production by GC-MS. Three strains (IATA01, IATA35, and IATA05) demonstrated survival after gastrointestinal digestion, with IATA01 exhibiting the highest adhesion to mucin but limited carbohydrate fermentation capacity. All strains increased the Bifidobacterium levels after colonic fermentation, while their effects on reducing pathogenic groups and promoting beneficial bacteria such as Akkermansia and Faecalibacterium varied depending on the strain and the individual inoculum. These findings highlight the strain-specific effects of Bifidobacterium and evidence a specific impact on colonic microbiota, depending on the composition of the basal inoculum, highlighting individual-specific responses.<\/jats:p>","DOI":"10.3390\/microorganisms13112523","type":"journal-article","created":{"date-parts":[[2025,11,3]],"date-time":"2025-11-03T13:55:22Z","timestamp":1762178122000},"page":"2523","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Exploratory In Vitro Evaluation of Maternal\u2013Infant Bifidobacterium Strains for Microbiota Modulation in a Pediatric Cystic Fibrosis Context"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8433-5729","authenticated-orcid":false,"given":"Maria","family":"Esteban-Torres","sequence":"first","affiliation":[{"name":"Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), 46980 Paterna, Valencia, Spain"},{"name":"Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy and Food Science, Universitat de Val\u00e8ncia, Avda. Vicent Andr\u00e9s Estell\u00e9s, 46100 Burjassot, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Isabel","family":"Blanco","sequence":"additional","affiliation":[{"name":"Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), 46980 Paterna, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrea","family":"Asensio-Grau","sequence":"additional","affiliation":[{"name":"Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy and Food Science, Universitat de Val\u00e8ncia, Avda. Vicent Andr\u00e9s Estell\u00e9s, 46100 Burjassot, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nuria","family":"Ruiz","sequence":"additional","affiliation":[{"name":"Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), 46980 Paterna, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3011-5373","authenticated-orcid":false,"given":"Manuel","family":"Bernabeu","sequence":"additional","affiliation":[{"name":"Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), 46980 Paterna, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joaquim","family":"Calvo-Lerma","sequence":"additional","affiliation":[{"name":"Institute of Agrochemistry and Food Technology, Spanish National Research Council (IATA-CSIC), 46980 Paterna, Valencia, Spain"},{"name":"Department of Preventive Medicine and Public Health, Food Science, Toxicology and Forensic Medicine, Faculty of Pharmacy and Food Science, Universitat de Val\u00e8ncia, Avda. Vicent Andr\u00e9s Estell\u00e9s, 46100 Burjassot, Valencia, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,11,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"219","DOI":"10.1038\/nri.2017.7","article-title":"Dysbiosis and the immune system","volume":"17","author":"Levy","year":"2017","journal-title":"Nat. Rev. Immunol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1797","DOI":"10.1007\/s10620-022-07812-1","article-title":"Cystic fibrosis-related gut dysbiosis: A systematic review","volume":"68","author":"Caley","year":"2023","journal-title":"Dig. Dis. 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