{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,12]],"date-time":"2026-10-12T22:08:46Z","timestamp":1791842926705,"version":"4.3.4"},"reference-count":23,"publisher":"PeerJ","license":[{"start":{"date-parts":[[2025,1,23]],"date-time":"2025-01-23T00:00:00Z","timestamp":1737590400000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Qingdao Key Health Discipline Development","award":["ODZDZK-2022098"],"award-info":[{"award-number":["ODZDZK-2022098"]}]},{"name":"National Key Research and Development Program of China","award":["2022YFE0199800"],"award-info":[{"award-number":["2022YFE0199800"]}]},{"name":"Key R&D Program of Shandong Province","award":["2020CXGC011305"],"award-info":[{"award-number":["2020CXGC011305"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"crossref","award":["82271658"],"award-info":[{"award-number":["82271658"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:sec>\n<jats:title>Background<\/jats:title>\n<jats:p>Perianal abscess is a common anal condition primarily caused by bacterial infections, yet the precise origins of these infecting bacteria remain unclear. Understanding the distinct microbial signatures associated with periaabscesses is crucial for provide fresh ideas for disease prevention.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>Materials and Methods<\/jats:title>\n<jats:p>Samples of anal skin, feces, and abscesses were collected from a cohort of 75 patients diagnosed with perianal abscesses. The microbial composition at each site was analyzed using 16S rRNA gene sequencing to characterize the bacterial communities present.<\/jats:p>\n<\/jats:sec>\n<jats:sec>\n<jats:title>Results<\/jats:title>\n<jats:p>Analysis using MaAslin2 revealed distinct bacterial compositional signatures among the anal skin, feces, and abscess samples. Alpha diversity analysis indicated significant differences in bacterial diversity between abscesses, anal skin, and feces, with abscesses showing lower diversity compared to higher richness in feces. Biomarker analysis highlighted key taxa such as <jats:italic>Bacteroides<\/jats:italic> and <jats:italic>Escherichia-Shisgella<\/jats:italic> in fecal samples, and <jats:italic>Staphylococcus<\/jats:italic> and <jats:italic>Corynebacterium<\/jats:italic> in anal skin samples. The analysis of abscess samples suggested that the bacterial composition may originate from the skin, feces, and potentially other sources.<\/jats:p>\n<\/jats:sec>","DOI":"10.7717\/peerj.18855","type":"journal-article","created":{"date-parts":[[2025,1,23]],"date-time":"2025-01-23T08:47:23Z","timestamp":1737622043000},"page":"e18855","source":"Crossref","is-referenced-by-count":8,"title":["The bacterial composition signatures of perianal abscess and origin of infecting microbes"],"prefix":"10.7717","volume":"13","author":[{"given":"Song","family":"Han","sequence":"first","affiliation":[{"name":"Department of Anorectal Surgery, Cheeloo College of Medicine, Qilu Hospital (Qingdao), Qingdao, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wenya","family":"Su","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University (Qingdao), Qingdao, Shandong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kefeng","family":"Fan","sequence":"additional","affiliation":[{"name":"Department of Respiratory Diseases, Qingdao Chengyang District People\u2019s Hospital, Qingdao, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhen","family":"Xu","sequence":"additional","affiliation":[{"name":"Department of Anorectal Surgery, Cheeloo College of Medicine, Qilu Hospital (Qingdao), Qingdao, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hai","family":"Xu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University (Qingdao), Qingdao, Shandong, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1215-9556","authenticated-orcid":true,"given":"Mingyu","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Microbial 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