In vivo analysis of the presence of heme oxygenase-1, transcription factor Jun-D and CD90+/CD73+/CD105+/CD45- cells in the pulp of bleached teeth

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dc.creatorFrancine Benetti
dc.creatorAndré Luiz Fraga Briso
dc.creatorAraújo Lopes
dc.creatorCarminatti
dc.creatorConti
dc.creatorMarjorie de Oliveira Gallinari
dc.creatorEdilson Ervolino
dc.creatorLuciano Tavares Angelo Cintra
dc.date.accessioned2022-09-24T20:53:45Z
dc.date.accessioned2025-09-08T23:22:45Z
dc.date.available2022-09-24T20:53:45Z
dc.date.issued2019-07-19
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPESP - Fundação de Amparo à Pesquisa do Estado de São Paulo
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1111/iej.13190
dc.identifier.issn01432885
dc.identifier.urihttps://hdl.handle.net/1843/45492
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofInternational Endodontic Journal
dc.rightsAcesso Restrito
dc.subjectDental pulp cavity
dc.subjectTooth bleaching
dc.subjectHeme oxygenase-1
dc.subjectHydrogen peroxide
dc.subjectStem cells
dc.subject.otherDental pulp
dc.subject.otherDental bleaching
dc.subject.otherHemeoxygenase-1
dc.subject.otherhydrogen peroxide
dc.subject.otherJun-D
dc.subject.otherStem cells
dc.titleIn vivo analysis of the presence of heme oxygenase-1, transcription factor Jun-D and CD90+/CD73+/CD105+/CD45- cells in the pulp of bleached teeth
dc.typeArtigo de periódico
local.citation.epage1737
local.citation.issue12
local.citation.spage1723
local.citation.volume52
local.description.resumoAimTo investigate hydrogen peroxide (H2O2)-inducedresponsiveness in pulp cells using heme oxygenase-1(HO-1) immunolabelling, Jun-D immunolabelling tostudy the effects of H2O2on odontoblastic differentiationand CD90+/CD73+/CD105+/CD45 cell counting forin vivoidentification of mesenchymal stem cells in thepulp.MethodologyThe maxillary molars of 50 rats weretreated with a bleaching gel (35% H2O2,1930 min) orplacebo gel (control groups). At 2, 3, 7, 15 and 30 daysafter the treatment (n=10), inflammation in pulp tissuewas analysed by haematoxylin–eosin staining, HO-1-and Jun-D-immunolabelled cells were counted ineach third of the pulp chamber, and the number ofCD90+/CD73+/CD105+/CD45 cells was quantified byimmunofluorescence. The results were assessed using thePairedt-test or Wilcoxon signed-rank test (P<0.05).ResultsSignificant H2O2-induced inflammation wasnoted at 2 and 3 days (P<0.05), with tertiary den-tine formation occurring from 7 days. The bleachedspecimens had greater HO-1 immunolabelling in themiddle and cervical thirds of the coronal pulp at 2and 3 days, in all thirds at 7 days, and in the occlu-sal third at 15 days (P<0.05), and significantnuclear Jun-D immunolabelling in the cervical thirdat 2 and 3 days and in the occlusal and middle thirdsat 7 days (P<0.05). Bleached and control groupshad low numbers of CD90+/CD73+/CD105+/CD45 cells in the pulp at all periods (P>0.05).ConclusionsPulp cells responded to oxidative stressby expressing HO-1 during the post-bleaching inflam-mation phase until the beginning of the repair phase.Jun-D expression occurred during the reduction ofinflammation and the beginning of tertiary dentine production. The presence of oxidative stress did notinfluence the number of CD90+/CD73+/CD105+/CD45 cells identifiedin vivo in the dental pulp
local.publisher.countryBrasil
local.publisher.departmentFAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA
local.publisher.initialsUFMG
local.url.externahttps://onlinelibrary.wiley.com/doi/full/10.1111/iej.13190

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