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dc.creatorJotić, Ana
dc.creatorJešić, Snežana
dc.creatorŽivković, Maja
dc.creatorTomanovic, Nada
dc.creatorKuveljic, Jovana
dc.creatorStanković, Aleksandra
dc.date.accessioned2018-03-01T16:19:37Z
dc.date.available2018-03-01T16:19:37Z
dc.date.issued2015
dc.identifier.issn0385-8146 (print)
dc.identifier.issn1879-1476 (electronic)
dc.identifier.urihttp://vinar.vin.bg.ac.rs/handle/123456789/679
dc.description.abstractObjective: Toll-like receptors (TLRs) have a prominent role in inducing innate immune response. It has been suggested that regulation of TLRs is involved in the pathogenesis of chronic otitis media. TLR 2 and TLR 4 polymorphisms were connected with susceptibility to acute otitis and chronic otitis with effusion. The objective of this study was to establish expression of TLR 2 and 4 on middle ear mucosa in different types of chronic suppurative otitis media (CSOM), and the influence of gene polymorphisms TLR 2 Arg753Gln and TLR 4 Thr399Ile and Asp299Gly to susceptibility to CSOM. Material and methods: Middle ear mucosa and full blood samples were obtained from 85 patients With chronic suppurative otitis media with and without cholesteatoma. Control group for mucosal TLR expression consisted of 71 samples of middle ear mucosa taken from patients with otosclerosis, and control group for DNA polymorphism consisted of 100 full blood samples in healthy subjects. DNA polymorphism detection was done with restriction fragment length polymorphism in RI PCR. Expression of TLR 2 and 4 was determined with immunohistochemical staining. Results: TLR 2 and TLR 4 expression on the middle ear mucosa was not influenced by age of the patients with chronic otitis media. Incidence of TLR 2 Arg753Gln polymorphism was significantly higher in patients with chronic otitis media, compared to control group. Significant association between TLR 2 Arg753Gln polymorphism and different types of mucosal changes in patients with chronic otitis media was established. TLR 2 and 4 expression on experimental group mucosa was significantly different compared to control group, where there was no expression (p = 0.000). Strong dependence of TLR 2 and TLR 4 expression on middle ear mucosa with different mucosal changes and immunohistochemical activity after staining was detected. Conclusion: Certain polymorphisms in TLR genes could be indicative for susceptibility to chronic otitis media. Expression of TLR 2 and 4 on middle ear mucosa was more dependable on different types of mucosal changes and type of CSOM than on bacteria found in the specimens. This can indicate that the type of mucosal changes are closely correlated with TLRs activity in middle ear. (C) 2015 Elsevier Ireland Ltd. All rights reserved.en
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175085/RS//
dc.rightsrestrictedAccessen
dc.sourceAuris Nasus Larynxen
dc.subjectChronic otitis mediaen
dc.subjectToll-like receptor (TLR) 2en
dc.subjectTLR 4en
dc.titlePolymorphisms in Toll-like receptors 2 and 4 genes and their expression in chronic suppurative otitis mediaen
dc.typearticleen
dcterms.abstractЖивковић Маја; Станковић Aлександра; Томановиц, Нада; Јесиц, Снезана; Кувељиц, Јована; Јотиц, Aна;
dc.citation.volume42
dc.citation.issue6
dc.citation.spage431
dc.citation.epage437
dc.identifier.wos000358632000001
dc.identifier.doi10.1016/j.anl.2015.04.010
dc.citation.rankM23
dc.identifier.pmid26055429
dc.identifier.scopus2-s2.0-84937524677


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