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| Rivera,Vanessa; Gaviria,Marcela; Muñoz-Cadavid,Cesar; Cano,Luz; Naranjo,Tonny. |
| ABSTRACT The diagnosis of cryptococcosis is usually performed based on cultures of tissue or body fluids and isolation of the fungus, but this method may require several days. Direct microscopic examination, although rapid, is relatively insensitive. Biochemical and immunodiagnostic rapid tests are also used. However, all of these methods have limitations that may hinder final diagnosis. The increasing incidence of fungal infections has focused attention on tools for rapid and accurate diagnosis using molecular biological techniques. Currently, PCR-based methods, particularly nested, multiplex and real-time PCR, provide both high sensitivity and specificity. In the present study, we evaluated a nested PCR targeting the gene encoding the ITS-1 and ITS-2... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cryptococcus neoformans/Cryptococcus gattiicomplex; Nested PCR; Cryptococcosis; Molecular diagnosis. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702015000600563 |
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| Schiave,Letícia Aparecida; Nascimento,Erika; Vilar,Fernando Crivelenti; de Haes,Tissiana Marques; Takayanagui,Osvaldo Massaiti; Gaitani,Cristiane Masetto de; Martinez,Roberto. |
| ABSTRACT Fluconazole is extensively used for the treatment of candidiasis and cryptococcosis. Among other factors, successful treatment is related to appropriate fluconazole levels in blood and cerebrospinal fluid. In the present study, fluconazole levels were determined in 15 patients, 14 of whom had AIDS and 13 had neurocryptococcosis. The only selection criterion was treatment with fluconazole, which was performed with a generic or similar form of the drug. Fluconazole level was determined by high performance liquid chromatography and the susceptibility profile of Cryptococcus spp. isolated from the patients was assessed by broth microdilution. Blood and cerebrospinal fluid fluconazole levels were found to be related to the fluconazole daily dose, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fluconazole; Cryptococcosis; Cerebrospinal fluid. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702018000100011 |
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| Medeiros,C.S.; Pontes-Filho,N.T.; Camara,C.A.; Lima-Filho,J.V.; Oliveira,P.C.; Lemos,S.A.; Leal,A.F.G.; Brandão,J.O.C.; Neves,R.P.. |
| The in vivo antifungal activity of the naphthoquinone beta-lapachone against disseminated infection by Cryptococcus neoformans was investigated. Swiss mice were immunosuppressed daily with dexamethasone (0.5 mg per mouse) intraperitoneally for 3 days, the procedure was repeated 4 days later, and the animals were then challenged intravenously with C. neoformans (10(6) CFU/mL) 1 week later. Seven days after infection, the mice were divided into groups and treated daily with beta-lapachone (10 mg/kg, iv) for 7 (N = 6) and 14 days (N = 10). Amphotericin B (0.5 mg/kg) was used as comparator drug and an additional group received PBS. Treatment with beta-lapachone cleared the yeast from the spleen and liver, and the fungal burden decreased approximately 10(4)... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Beta-lapachone; Cryptococcus neoformans; Cryptococcosis; Immunesuppression; Experimental infection; Amphotericin B. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2010000400004 |
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