{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,9]],"date-time":"2026-06-09T15:33:37Z","timestamp":1781019217339,"version":"3.54.1"},"reference-count":49,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T00:00:00Z","timestamp":1625529600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Microorganisms"],"abstract":"<jats:p>The human microbiome plays an important role in various diseases, including Beh\u00e7et\u2019s disease (BD). However, the effects of disease activity and covariates influencing the microbial composition have not yet been investigated. Therefore, we investigated the fecal and salivary microbiomes of BD patients compared to those of recurrent aphthous ulcer (RAU) patients, as well as dietary habit-matched healthy controls (HCs) selected from immediate family members using 16S rRNA gene sequencing. The fecal microbiome alpha diversity of BD patients was not different from that of their matched HCs, although it was higher than that of unrelated HCs and decreased in BD patients with disease activity. A tendency toward clustering in the beta diversity of the fecal microbiome was observed between the active BD patients and their matched HCs. Active BD patients had a significantly higher abundance of fecal Bacteroides uniformis than their matched HCs and patients with the disease in an inactive state (p = 0.038). The abundance of salivary Rothia mucilaginosa group was higher in BD patients than in RAUs patients. BD patients with uveitis had different abundances of various taxa, compared to those without uveitis. Our results showed an association of fecal microbiome composition with BD disease activity and symptoms, suggesting the possible role of the gut microbiome in BD pathogenesis.<\/jats:p>","DOI":"10.3390\/microorganisms9071449","type":"journal-article","created":{"date-parts":[[2021,7,6]],"date-time":"2021-07-06T11:36:44Z","timestamp":1625571404000},"page":"1449","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["Alteration of the Fecal but Not Salivary Microbiome in Patients with Beh\u00e7et\u2019s Disease According to Disease Activity Shift"],"prefix":"10.3390","volume":"9","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3820-8811","authenticated-orcid":false,"given":"Jin Cheol","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Dermatology, Ajou University School of Medicine, Suwon 16499, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mi Jin","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Ajou University School of Medicine, Suwon 16499, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sun","family":"Park","sequence":"additional","affiliation":[{"name":"Department of Microbiology and Immunology, Ajou University School of Medicine, Suwon 16499, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0232-7704","authenticated-orcid":false,"given":"Eun-So","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Dermatology, Ajou University School of Medicine, Suwon 16499, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,7,6]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"337","DOI":"10.1016\/j.cell.2016.01.013","article-title":"Are We Really Vastly Outnumbered? 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