Please use this identifier to cite or link to this item: https://observatorio.fm.usp.br/handle/OPI/46088
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dc.contributorSistema FMUSP-HC: Faculdade de Medicina da Universidade de São Paulo (FMUSP) e Hospital das Clínicas da FMUSP
dc.contributor.authorFERNANDES, Marcos V. S.
dc.contributor.authorROCHA, Nazareth N.
dc.contributor.authorFELIX, Nathane S.
dc.contributor.authorRODRIGUES, Gisele C.
dc.contributor.authorSILVA, Luisa H. A.
dc.contributor.authorCOELHO, Mariana S.
dc.contributor.authorFONSECA, Ana Carolina F.
dc.contributor.authorTEIXEIRA, Ana Carolina G. M.
dc.contributor.authorCAPELOZZI, Vera L.
dc.contributor.authorPELOSI, Paolo
dc.contributor.authorSILVA, Pedro L.
dc.contributor.authorMARINI, John J.
dc.contributor.authorROCCO, Patricia R. M.
dc.date.accessioned2022-04-19T13:03:57Z-
dc.date.available2022-04-19T13:03:57Z-
dc.date.issued2022
dc.identifier.citationJOURNAL OF APPLIED PHYSIOLOGY, v.132, n.2, p.375-387, 2022
dc.identifier.issn8750-7587
dc.identifier.urihttps://observatorio.fm.usp.br/handle/OPI/46088-
dc.description.abstractIncreases in positive end-expiratory pressure (PEEP) or recruitment maneuvers may increase stress in lung parenchyma, extracellular matrix, and lung vessels; however, adaptative responses may occur. We evaluated the effects of PEEP on lung damage and cardiac function when increased abruptly, gradually, or more gradually in experimental mild/moderate acute respiratory distress syndrome (ARDS) induced by Escherichia coli lipopolysaccharide intratracheally. After 24 h, Wistar rats (n = 48) were randomly assigned to four mechanical ventilation strategies according to PEEP levels: 1) 3 cmH(2)O for 2 h (control); 2) 3 cmH(2)O for 1 h followed by an abrupt increase to 9 cmH(2)O for 1 h (no adaptation time); 3) 3 cmH(2)O for 30 min followed by a gradual increase to 9 cmH(2)O over 30 min then kept constant for 1 h (shorter adaptation time); and 4) more gradual increase in PEEP from 3 cmH(2)O to 9 cmH(2)O over 1 h and kept constant thereafter (longer adaptation time). At the end of the experiment, oxygenation improved in the shorter and longer adaptation time groups compared with the no-adaptation and control groups. Diffuse alveolar damage and expressions of interleukin-6, club cell protein-16, vascular cell adhesion molecule-1, amphiregulin, decorin, and syndecan were higher in no adaptation time compared with other groups. Pulmonary arterial pressure was lower in longer adaptation time than in no adaptation (P = 0.002) and shorter adaptation time (P = 0.025) groups. In this model, gradually increasing PEEP limited lung damage and release of biomarkers associated with lung epithelial/endothelial cell and extracellular matrix damage, as well as the PEEP-associated increase in pulmonary arterial pressure. NEW & NOTEWORTHY In a rat model of Escherichia coli lipopolysaccharide-induced mild/moderate acute respiratory distress syndrome, a gradual PEEP increase (shorter adaptation time) effectively mitigated histological lung injury and biomarker release associated with lung inflammation, damage to epithelial cells, endothelial cells, and the extracellular matrix compared with an abrupt increase in PEEP. A more gradual PEEP increase (longer adaptation time) decreased lung damage, pulmonary vessel compression, and pulmonary arterial pressure.eng
dc.description.sponsorshipBrazilian Council for Scientific and Technological Development (CNPq
dc.description.sponsorshipBrasilia, Brazil)Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ)Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF)
dc.description.sponsorshipRio de Janeiro State Research Foundation (FAPERJ
dc.description.sponsorshipRio de Janeiro, Brazil)
dc.description.sponsorshipSao Paulo State Research Foundation (FAPESP
dc.description.sponsorshipSAo Paulo, Brazil)Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
dc.description.sponsorshipCoordination for the Improvement of Higher Education Personnel (CAPES
dc.description.sponsorshipBrasilia, Brazil)Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)
dc.language.isoeng
dc.publisherAMER PHYSIOLOGICAL SOCeng
dc.relation.ispartofJournal of Applied Physiology
dc.rightsrestrictedAccesseng
dc.subjectacute respiratory distress syndromeeng
dc.subjectdiffuse alveolar damage scoreeng
dc.subjectlung functioneng
dc.subjectmolecular biologyeng
dc.subjectventilator-induced lung injuryeng
dc.subject.otherinjuryeng
dc.subject.othermaneuverseng
dc.subject.othersocietyeng
dc.subject.otherstraineng
dc.subject.otherfluideng
dc.titleA more gradual positive end-expiratory pressure increase reduces lung damage and improves cardiac function in experimental acute respiratory distress syndromeeng
dc.typearticleeng
dc.rights.holderCopyright AMER PHYSIOLOGICAL SOCeng
dc.identifier.doi10.1152/japplphysiol.00613.2021
dc.identifier.pmid34941443
dc.subject.wosPhysiologyeng
dc.subject.wosSport Scienceseng
dc.type.categoryoriginal articleeng
dc.type.versionpublishedVersioneng
hcfmusp.author.externalFERNANDES, Marcos V. S.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalROCHA, Nazareth N.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil; Fluminense Fed Univ, Biomed Inst, Dept Physiol & Pharmacol, Niteroi, RJ, Brazil
hcfmusp.author.externalFELIX, Nathane S.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalRODRIGUES, Gisele C.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalSILVA, Luisa H. A.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalCOELHO, Mariana S.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalFONSECA, Ana Carolina F.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalTEIXEIRA, Ana Carolina G. M.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalPELOSI, Paolo:Univ Genoa, Dept Surg Sci & Integrated Diagnost, Genoa, Italy; IRCCS Oncol & Neurosci, San Martino Policlin Hosp, Genoa, Italy
hcfmusp.author.externalSILVA, Pedro L.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.author.externalMARINI, John J.:Reg Hosp, Minneapolis, MN USA; Univ Minnesota, Minneapolis, MN USA
hcfmusp.author.externalROCCO, Patricia R. M.:Univ Fed Rio de Janeiro, Carlos Chagas Filho Biophys Inst, Lab Pulm Invest, Rio De Janeiro, Brazil
hcfmusp.description.beginpage375
hcfmusp.description.endpage387
hcfmusp.description.issue2
hcfmusp.description.volume132
hcfmusp.origemWOS
hcfmusp.origem.idWOS:000748371900010
hcfmusp.origem.id2-s2.0-85123878365
hcfmusp.publisher.cityRockvilleeng
hcfmusp.publisher.countryUNITED STATESeng
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dc.description.indexMEDLINEeng
dc.identifier.eissn1522-1601
hcfmusp.citation.scopus0-
hcfmusp.scopus.lastupdate2022-07-07-
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Departamento de Patologia - FM/MPT

Artigos e Materiais de Revistas Científicas - LIM/03
LIM/03 - Laboratório de Medicina Laboratorial


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