{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T10:32:26Z","timestamp":1785407546020,"version":"3.56.0"},"reference-count":59,"publisher":"Cambridge University Press (CUP)","license":[{"start":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T00:00:00Z","timestamp":1782259200000},"content-version":"unspecified","delay-in-days":174,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["J Dev Orig Health Dis"],"published-print":{"date-parts":[[2026]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    This narrative review examines the development of the infant gut microbiota during the early months of life, highlighting the impact of delivery mode and feeding practices on microbial colonization and overall infant health. The search was conducted using the Virtual Health Library and PubMed databases, with the descriptors \u201cgut microbiota\u201d combined with \u201cbreastfeeding\u201d (BF) and \u201cinfant formula.\u201d After screening, 18 articles were selected for final analysis. Findings indicate that cesarean section reduces initial gut microbial diversity by 30%\u201350% and decreases\n                    <jats:italic>Bifidobacterium<\/jats:italic>\n                    colonization, while increasing the abundance of\n                    <jats:italic>Enterobacteriaceae<\/jats:italic>\n                    and\n                    <jats:italic>Clostridium<\/jats:italic>\n                    . In contrast, exclusive BF supports a more favorable microbial profile, enriched in bifidobacteria, and contributes to immune system maturation. The literature also highlights the importance of other genera, including\n                    <jats:italic>Lactobacillus<\/jats:italic>\n                    ,\n                    <jats:italic>Veillonella<\/jats:italic>\n                    , and\n                    <jats:italic>Firmicutes<\/jats:italic>\n                    , in regulating inflammation, producing short-chain fatty acids, and protecting against pathogens. Supporting vaginal birth and exclusive BF emerges as a key strategy to promote a more resilient and health-promoting gut microbiota during infancy.\n                  <\/jats:p>","DOI":"10.1017\/s2040174426100488","type":"journal-article","created":{"date-parts":[[2026,6,24]],"date-time":"2026-06-24T09:30:38Z","timestamp":1782293438000},"update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":0,"title":["The infant gut microbiota: a narrative review about development and external determinants"],"prefix":"10.1017","volume":"17","author":[{"given":"Thielen Borba","family":"da Costa","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05msy9z54","id-type":"ROR","asserted-by":"publisher"}],"name":"Federal University of Pelotas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juliana dos Santos","family":"Vaz","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05msy9z54","id-type":"ROR","asserted-by":"publisher"}],"name":"Federal University of Pelotas"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7403-1577","authenticated-orcid":false,"given":"Simone","family":"Pieniz","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/05msy9z54","id-type":"ROR","asserted-by":"publisher"}],"name":"Federal University of Pelotas"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2026,6,24]]},"reference":[{"key":"S2040174426100488_ref7","unstructured":"7. 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