{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T23:21:21Z","timestamp":1785885681898,"version":"3.56.0"},"reference-count":39,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2024,7,31]],"date-time":"2024-07-31T00:00:00Z","timestamp":1722384000000},"content-version":"vor","delay-in-days":30,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2024,7,1]],"date-time":"2024-07-01T00:00:00Z","timestamp":1719792000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Helicobacter"],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Vonoprazan, a potassium\u2010competitive acid blocker, is superior to traditional proton pump inhibitor (PPI) in acid suppression and has been approved in the treatment of acid\u2010related disorders. Accumulating evidence suggest associations between PPI use and gut microbiota, yet the effect of vonoprazan on GI microbiota is obscure.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Transgenic FVB\/N insulin\u2010gastrin (INS\u2010GAS) mice as a model of gastric cancer (GC) were administered vonoprazan by gavage every other day for 12\u2009weeks. Stomachs were evaluated by histopathology, Ki\u201067 proliferation index, and inflammatory cytokines. The mucosal and lumen microbiota from stomach, jejunum, ileum, cecum, and feces were detected using 16S rRNA gene sequencing.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Higher incidence of intestinal metaplasia and epithelial proliferation were observed in the vonoprazan group than that in the control mice. Vonoprazan also elevated the gastric expression of proinflammatory cytokines, including TNF\u2010\u03b1, IL\u20101\u03b2, and IL\u20106. Each mice comprised a unique microbiota composition that was consistent across different niches. The structure of GI microbiota changed dramatically after vonoprazan treatment with the stomach being the most disturbed segment. Vonoprazan administration shifted the gut microbiota toward the enrichment of pathogenic\n                      <jats:italic>Streptococcus<\/jats:italic>\n                      ,\n                      <jats:italic>Staphylococcus<\/jats:italic>\n                      ,\n                      <jats:italic>Bilophila<\/jats:italic>\n                      , and the loss of commensal\n                      <jats:italic>Prevotella<\/jats:italic>\n                      ,\n                      <jats:italic>Bifidobacterium<\/jats:italic>\n                      , and\n                      <jats:italic>Faecalibacterium<\/jats:italic>\n                      . Interestingly, compared to the controls, microbial interactions were weaker in the stomach while stronger in the jejunum of the vonoprazan group.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Long\u2010term vonoprazan treatment promoted gastric lesions in male INS\u2010GAS mice, with the disequilibrium of GI microbiome. The clinical application of vonoprazan needs to be judicious particularly among those with high risk of GC.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/hel.13117","type":"journal-article","created":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T00:09:50Z","timestamp":1722470990000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Spatial Variation of the Gastrointestinal Microbiota in Response to Long\u2010Term Administration of Vonoprazan in Mice With High Risk of Gastric Cancer"],"prefix":"10.1111","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7368-3904","authenticated-orcid":false,"given":"Chao","family":"Peng","sequence":"first","affiliation":[{"name":"Department of Gastroenterology, Jiangxi Provincial Key Laboratory of Digestive Diseases, Jiangxi Clinical Research Center for Gastroenterology, Digestive Disease Hospital The First Affiliated Hospital, Jiangxi Medical College, 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