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Candida parapsilosis complex water isolates from a haemodialysis unit: biofilm production and in vitro evaluation of the use of clinical antifungals

dc.contributor.authorPires, Regina Helena [UNESP]
dc.contributor.authorSantos, Jaime Maia dos [UNESP]
dc.contributor.authorZaia, José Eduardo
dc.contributor.authorMartins, Carlos Henrique Gomes
dc.contributor.authorMendes-Giannini, Maria José Soares [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de Franca Laboratório de Pesquisa em Microbiologia Aplicada
dc.date.accessioned2014-05-20T13:16:52Z
dc.date.available2014-05-20T13:16:52Z
dc.date.issued2011-09-01
dc.description.abstractCandida parapsilosis, currently divided into three distinct species, proliferates in glucose-rich solutions and has been associated with infections resulting from the use of medical devices made of plastic, an environment common in dialysis centres. The aims of this study were (i) to screen for Candida orthopsilosis and Candida metapsilosis (100 environmental isolates previously identified as C. parapsilosis), (ii) to test the ability of these isolates to form biofilm and (iii) to investigate the in vitro susceptibility of Candida spp biofilms to the antifungal agents, fluconazole (FLC) and amphotericin B (AMB). Isolates were obtained from a hydraulic circuit collected from a haemodialysis unit. Based on molecular criteria, 47 strains were re-identified as C. orthopsilosis and 53 as C. parapsilosis. Analyses using a formazan salt reduction assay and total viable count, together with microscopy studies, revealed that 72 strains were able to form biofilm that was structurally similar, but with minor differences in morphology. A microtitre-based colorimetric assay used to test the susceptibility of fungal biofilms to AMB and FLC demonstrated that the C. parapsilosis complex displayed an increased resistance to these antifungal agents. The results from these analyses may provide a basis for implementing quality controls and monitoring to ensure the microbiological purity of dialysis water, including the presence of yeast.en
dc.description.affiliationUniversidade Estadual Paulista Faculdade de Ciências Farmacêuticas Departamento de Análises Clínicas
dc.description.affiliationUniversidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade Vegetal
dc.description.affiliationUniversidade de Franca Laboratório de Pesquisa em Microbiologia Aplicada
dc.description.affiliationUnespUniversidade Estadual Paulista Faculdade de Ciências Farmacêuticas Departamento de Análises Clínicas
dc.description.affiliationUnespUniversidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Fitossanidade Vegetal
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdPADC/FCFAr-UNESP: 2009/54
dc.format.extent646-654
dc.identifierhttp://www.scielo.br/scielo.php?pid=S0074-02762011000600002&script=sci_arttext
dc.identifier.citationMemórias do Instituto Oswaldo Cruz. Instituto Oswaldo Cruz, Ministério da Saúde, v. 106, n. 6, p. 646-654, 2011.
dc.identifier.fileS0074-02762011000600002.pdf
dc.identifier.issn0074-0276
dc.identifier.lattes6585937888894798
dc.identifier.orcid0000-0002-8059-0826
dc.identifier.scieloS0074-02762011000600002
dc.identifier.urihttp://hdl.handle.net/11449/3553
dc.identifier.wosWOS:000296022400002
dc.language.isoeng
dc.publisherInstituto Oswaldo Cruz, Ministério da Saúde
dc.relation.ispartofMemórias do Instituto Oswaldo Cruz
dc.relation.ispartofjcr2.833
dc.relation.ispartofsjr1,172
dc.rights.accessRightsAcesso abertopt
dc.sourceSciELO
dc.subjectCandida parapsilosisen
dc.subjectCandida orthopsilosisen
dc.subjectBiofilmen
dc.subjecthaemodialysis solutionen
dc.titleCandida parapsilosis complex water isolates from a haemodialysis unit: biofilm production and in vitro evaluation of the use of clinical antifungalsen
dc.typeArtigopt
dcterms.licensehttp://www.scielo.br/revistas/mioc/paboutj.htm
dcterms.licensehttp://www.scielo.br/revistas/mioc/paboutj.htm
dspace.entity.typePublication
relation.isDepartmentOfPublicationa83d26d6-5383-42e4-bb3c-2678a6ddc144
relation.isDepartmentOfPublication.latestForDiscoverya83d26d6-5383-42e4-bb3c-2678a6ddc144
relation.isOrgUnitOfPublication95697b0b-8977-4af6-88d5-c29c80b5ee92
relation.isOrgUnitOfPublication.latestForDiscovery95697b0b-8977-4af6-88d5-c29c80b5ee92
unesp.author.lattes6585937888894798
unesp.author.orcid0000-0002-8059-0826[5]
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Farmacêuticas, Araraquarapt
unesp.departmentFitossanidade - FCAVpt
unesp.departmentAnálises Clínicas - FCFpt

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