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

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Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de Franca-
Autor(es): dc.creatorPires, Regina Helena-
Autor(es): dc.creatordos Santos, Jaime Maia-
Autor(es): dc.creatorZaia, José Eduardo-
Autor(es): dc.creatorMartins, Carlos Henrique Gomes-
Autor(es): dc.creatorMendes-Giannini, Maria José Soares-
Data de aceite: dc.date.accessioned2025-08-21T18:50:42Z-
Data de disponibilização: dc.date.available2025-08-21T18:50:42Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2011-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1590/S0074-02762011000600002-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/226561-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/226561-
Descrição: dc.descriptionCandida 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.-
Descrição: dc.descriptionDepartamento de Análises Clínicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista, Araraquara, SP-
Descrição: dc.descriptionDepartamento de Fitossanidade Vegetal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal, SP-
Descrição: dc.descriptionLaboratório de Pesquisa em Microbiologia Aplicada Universidade de Franca, Franca, SP-
Descrição: dc.descriptionDepartamento de Análises Clínicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista, Araraquara, SP-
Descrição: dc.descriptionDepartamento de Fitossanidade Vegetal Faculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista, Jaboticabal, SP-
Formato: dc.format646-654-
Idioma: dc.languageen-
Relação: dc.relationMemorias do Instituto Oswaldo Cruz-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBiofilm-
Palavras-chave: dc.subjectCandida orthopsilosis-
Palavras-chave: dc.subjectCandida parapsilosis-
Palavras-chave: dc.subjectHaemodialysis solution-
Título: dc.titleCandida parapsilosis complex water isolates from a haemodialysis unit: Biofilm production and in vitro evaluation of the use of clinical antifungals-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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