Show simple item record

dc.creatorMilosavljević, A.
dc.creatorĐukić, Ljiljana
dc.creatorToljić, Boško
dc.creatorMilašin, Jelena
dc.creatorDželetović, Bojan
dc.creatorBrković, Božidar
dc.creatorRoganović, Jelena
dc.date.accessioned2020-07-02T13:17:46Z
dc.date.available2020-07-02T13:17:46Z
dc.date.issued2018
dc.identifier.issn0143-2885
dc.identifier.urihttp://smile.stomf.bg.ac.rs/handle/123456789/2321
dc.description.abstractAimTo investigate melatonin (MEL) levels in human dental pulp tissue (hDP) in type 2 diabetic (T2D) participants and the underlying molecular mechanisms of its effects in human dental pulp cells (hDPCs) under hyperglycaemia. MethodologyThe study included 16 healthy and 16 T2D participants who underwent vital pulp extirpation for hDP and four healthy participants undergoing third molar extraction for hDPCs analyses. MTT and NRU were used as tests for cytotoxicity. The pulp tissue levels of MEL, inducible NO synthase (iNOS) and superoxide dismutase (SOD) activity, as well as iNOS, histone acetyltransferase p300 (p300) and SOD activity levels in hDPCs incubated with MEL (0.1 and 1.0mmolL(-1)) under normoglycaemia and hyperglycaemia were measured by enzyme-linked immunosorbent assay. Comparisons between the two groups were made by unpaired t-tests or Mann-Whitney test whilst the chi-square test was used for dichotomous variables. To compare more groups, the Kruskal-Wallis test with Dunn's multiple comparison was used, whilst Spearman correlation was used to assess association between two variables. ResultsMelatonin was decreased (124.3021.6 vs. 240.0 +/- 19.1 pgmL(-1), P lt 0.01), whilst iNOS levels increased (0.92 +/- 0.08 vs. 0.32 +/- 0.09ngmL(-1), P lt 0.01) in hDP from T2D compared to nondiabetic participants. In hDPCs, MEL (0.1 and 1.0mmolL(-1)) had no cytotoxicity. Incubation with 1.0mmolL(-1) of MEL (24h) decreased hyperglycaemia-induced increases of iNOS (0.34 +/- 0.01ngmL(-1) vs. 0.40 +/- 0.01ngmL(-1), P lt 0.01) and p300 (11.59 +/- 0.58ngmL(-1) vs. 16.12 +/- 0.39ngmL(-1), P lt 0.01), and also, increased SOD activity (87.11 +/- 3.10% vs. 68.56 +/- 3.77%, P lt 0.01) to the levels comparable to the normoglycaemic; iNOS and p300 protein expression levels showed strong positive correlation under hyperglycaemia (Spearman r=0.8242, P lt 0.001). ConclusionType 2 diabetic participants had decreased MEL in hDP. At pharmacological concentrations, MEL is not cytotoxic for hDPCs and normalizes iNOS and SOD activity levels in hyperglyceamic hDPCs suggesting its antioxidant and protective effects in human dental pulp tissue under hyperglycaemia.en
dc.publisherWiley, Hoboken
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175021/RS//
dc.rightsrestrictedAccess
dc.sourceInternational Endodontic Journal
dc.subjectdiabetesen
dc.subjecthistone acetyltransferase p300en
dc.subjecthuman dental pulpen
dc.subjectiNOSen
dc.subjectmelatoninen
dc.subjectSOD activityen
dc.titleMelatonin levels in human diabetic dental pulp tissue and its effects on dental pulp cells under hyperglycaemic conditionsen
dc.typearticle
dc.rights.licenseARR
dcterms.abstractРогановић, Јелена; Ђукић, Љиљана; Милашин, Јелена; Тољић, Бошко; Милосављевић, A.; Брковић, Божидар; Джелетовић, Бојан;
dc.citation.volume51
dc.citation.issue10
dc.citation.spage1149
dc.citation.epage1158
dc.citation.other51(10): 1149-1158
dc.citation.rankaM21
dc.identifier.wos000443941400008
dc.identifier.doi10.1111/iej.12934
dc.identifier.pmid29617040
dc.identifier.scopus2-s2.0-85052975740
dc.identifier.rcubconv_3553
dc.type.versionpublishedVersion


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record