{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T00:33:59Z","timestamp":1793579639213,"version":"4.5.0"},"reference-count":104,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T00:00:00Z","timestamp":1725494400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Italian Ministry of Health"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Recent evidence indicates that the gut microbiota (GM) has a significant impact on the inflammatory bowel disease (IBD) progression. Our aim was to investigate the GM profiles, the Microbial Dysbiosis Index (MDI) and the intestinal microbiota-associated markers in relation to IBD clinical characteristics and disease state. We performed 16S rRNA metataxonomy on both stools and ileal biopsies, metabolic dysbiosis tests on urine and intestinal permeability and mucosal immunity activation tests on the stools of 35 IBD paediatric patients. On the GM profile, we assigned the MDI to each patient. In the statistical analyses, the MDI was correlated with clinical parameters and intestinal microbial-associated markers. In IBD patients with high MDI, Gemellaceae and Enterobacteriaceae were increased in stools, and Fusobacterium, Haemophilus and Veillonella were increased in ileal biopsies. Ruminococcaceae and WAL_1855D were enriched in active disease condition; the last one was also positively correlated to MDI. Furthermore, the MDI results correlated with PUCAI and Matts scores in ulcerative colitis patients (UC). Finally, in our patients, we detected metabolic dysbiosis, intestinal permeability and mucosal immunity activation. In conclusion, the MDI showed a strong association with both severity and activity of IBD and a positive correlation with clinical scores, especially in UC. Thus, this evidence could be a useful tool for the diagnosis and prognosis of IBD.<\/jats:p>","DOI":"10.3390\/ijms25179618","type":"journal-article","created":{"date-parts":[[2024,9,5]],"date-time":"2024-09-05T05:30:02Z","timestamp":1725514202000},"page":"9618","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A Novel Microbial Dysbiosis Index and Intestinal Microbiota-Associated Markers as Tools of Precision Medicine in Inflammatory Bowel Disease Paediatric Patients"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8976-9013","authenticated-orcid":false,"given":"Francesca","family":"Toto","sequence":"first","affiliation":[{"name":"Immunology, Rheumatology and Infectious Diseases Research Area, Unit of Microbiome, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6633-3938","authenticated-orcid":false,"given":"Chiara","family":"Marangelo","sequence":"additional","affiliation":[{"name":"Immunology, Rheumatology and Infectious Diseases Research Area, Unit of Microbiome, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matteo","family":"Scanu","sequence":"additional","affiliation":[{"name":"Immunology, Rheumatology and Infectious Diseases Research Area, Unit of Microbiome, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paola","family":"De Angelis","sequence":"additional","affiliation":[{"name":"Digestive Endoscopy and Surgery Unit, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sara","family":"Isoldi","sequence":"additional","affiliation":[{"name":"Pediatric Gastroenterology and Hepatology Unit, Santobono-Pausilipon Children\u2019s Hospital, 80122 Naples, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria Teresa","family":"Abreu","sequence":"additional","affiliation":[{"name":"Crohn\u2019s and Colitis Center, Division of Digestive Health and Liver Diseases, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Salvatore","family":"Cucchiara","sequence":"additional","affiliation":[{"name":"Maternal Child Health Department, Pediatric Gastroenterology and Liver Unit, Sapienza University of Rome, 00185 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Stronati","sequence":"additional","affiliation":[{"name":"Department of Molecular Medicine, Sapienza University of Rome, 00185 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4204-4736","authenticated-orcid":false,"given":"Federica","family":"Del Chierico","sequence":"additional","affiliation":[{"name":"Immunology, Rheumatology and Infectious Diseases Research Area, Unit of Microbiome, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0134-2830","authenticated-orcid":false,"given":"Lorenza","family":"Putignani","sequence":"additional","affiliation":[{"name":"Unit of Microbiology and Diagnostic Immunology, Unit of Microbiomics and Immunology, Rheumatology and Infectious Diseases Research Area, Unit of Microbiome, Bambino Ges\u00f9 Children\u2019s Hospital, IRCCS, 00165 Rome, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,9,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"104344","DOI":"10.1016\/j.micpath.2020.104344","article-title":"The Critical Role of Faecalibacterium Prausnitzii in Human Health: An Overview","volume":"149","author":"Leylabadlo","year":"2020","journal-title":"Microb. 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