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However, their effects in endotoxin-induced ALI remain unclear, and recent clinical data have raised concerns regarding their potential impact on patient outcomes. We investigated whether sevoflurane restores alveolar fluid clearance (AFC) and preserves epithelial integrity in a murine model of lipopolysaccharide (LPS)-induced ALI. Wild-type (WT) and receptor for advanced glycation end-products\u2013deficient (RAGE\u2212\/\u2212) mice received intratracheal lipopolysaccharide (LPS) and were exposed to sevoflurane (1 vol %) or control gas for 1\u00a0h. Our primary outcome, the net AFC rate was measured 48\u00a0h after injury. Secondary outcomes included lung histology, bronchoalveolar lavage (BAL) protein and cytokine levels, and lung expression of epithelial sodium channel (ENaC), water transporter aquaporin-5 (AQP5), and adherens junction protein E-cadherin. LPS induced significant weight loss and severe lung injury, with impaired AFC and downregulation of ENaC and AQP5. Sevoflurane did not restore AFC, reduce alveolar-capillary permeability, or preserve epithelial junctional integrity. RAGE\u2212\/\u2212\u2009mice exhibited attenuated lung injury and partial preservation of epithelial marker expression, without a statistically significant interaction with sevoflurane exposure. BAL cytokine levels were largely unaffected by sevoflurane. These findings suggest context-dependent effects of a 1-h exposure to 1.0 vol% sevoflurane in experimental ALI, with absence of epithelial benefit in a mouse model of endotoxin-induced ALI, in contrast with previously reported effects in a sterile model. This work may provide mechanistic insight into the differential translational impact of inhaled sedation strategies.<\/jats:p>","DOI":"10.1038\/s41598-026-60302-6","type":"journal-article","created":{"date-parts":[[2026,7,4]],"date-time":"2026-07-04T11:14:26Z","timestamp":1783163666000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Sevoflurane does not restore alveolar fluid clearance in a murine model of endotoxin-induced acute lung injury"],"prefix":"10.1038","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-8402-7166","authenticated-orcid":false,"given":"Thomas","family":"Finotto","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Baptiste","family":"Bezaud","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camille","family":"Theilliere","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Coralie","family":"Roche","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lucie","family":"Vivier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fanny","family":"Henrioux","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent Renard","family":"Trich\u00e9","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"C\u00e9cile","family":"Saint-B\u00e9at","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Louna","family":"Monturet","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Corinne","family":"Belville","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Damien","family":"Bouvier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Loic","family":"Blanchon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vincent","family":"Sapin","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc","family":"Garnier","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthieu","family":"Jabaudon","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2026,7,4]]},"reference":[{"issue":"8","key":"60302_CR1","doi-asserted-by":"publisher","first-page":"788","DOI":"10.1001\/jama.2016.0291","volume":"315","author":"G Bellani","year":"2016","unstructured":"Bellani, G. et al. 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The other authors declare no competing interests.","order":1,"name":"Ethics","label":"Competing interests","group":{"name":"EthicsHeading","label":"Declarations"}}],"article-number":"30762"}}