PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil

Background The incidence of invasive mycoses is increasing worldwide. PCR-RFLP was applied to the identification of 10 reference strains and 90 cultures of agents of invasive mycoses. In addition, the new approach was applied to detect fungal agents in 120 biological samples (blood, cerebrospinal fl...

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Autores principales: Sousa,Diego Rayan Teixeira de, Santos,Carla Silvana da Silva, Wanke,Bodo, Silva Júnior,Roberto Moreira da, Santos,Marcelo Cordeiro dos, Cruz,Kátia Santana, Monte,Rossicléia Lins, Nocker,Andreas, Souza,João Vicente Braga de
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Publicado: Pontificia Universidad Católica de Valparaíso 2015
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300014
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spelling oai:scielo:S0717-345820150003000142015-06-26PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of BrazilSousa,Diego Rayan Teixeira deSantos,Carla Silvana da SilvaWanke,BodoSilva Júnior,Roberto Moreira daSantos,Marcelo Cordeiro dosCruz,Kátia SantanaMonte,Rossicléia LinsNocker,AndreasSouza,João Vicente Braga de Pathogenic fungus Polymorphism Simultaneous analysis Background The incidence of invasive mycoses is increasing worldwide. PCR-RFLP was applied to the identification of 10 reference strains and 90 cultures of agents of invasive mycoses. In addition, the new approach was applied to detect fungal agents in 120 biological samples (blood, cerebrospinal fluid and bone marrow). PCR-RFLP results were compared with the ones obtained with conventional methods (culture, microscopy, and biochemical testing). Results The assays carried out with the reference strains (Candida albicans, Candida parapsilosis, Candida tropicalis, Candida krusei, Candida guilliermondii, Cryptococcus neoformans, Cryptococcus gattii and Histoplasma capsulatum), demonstrated that the RFLP profiles were correctly predicted by the in silico investigation and allowed unequivocal identification of all chosen reference strains. The PCR-RFLP also identified 90 cultures of agents of invasive mycoses correctly, 2.5 times faster than the conventional assays. Evaluating PCR-RFLP with biological samples it was observed that the PCR was found to be 100% accurate and the RFLP profiles allowed the identification of the etiological agents: C. neoformans (n = 3) and C. gattii (n = 1) in CSF samples, H. capsulatum (n = 1) in bone marrow and C. albicans (n = 2) in blood cultures. The detection and identification by PCR-RFLP were found to be between two to ten times faster than the conventional assays. Conclusion The results showed that PCR-RFLP is a valuable tool for the identification of invasive mycoses that can be implemented in hospital laboratories, allowing for a high number of clinical analyses per day.info:eu-repo/semantics/openAccessPontificia Universidad Católica de ValparaísoElectronic Journal of Biotechnology v.18 n.3 20152015-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300014en10.1016/j.ejbt.2015.03.012
institution Scielo Chile
collection Scielo Chile
language English
topic Pathogenic fungus
Polymorphism
Simultaneous analysis
spellingShingle Pathogenic fungus
Polymorphism
Simultaneous analysis
Sousa,Diego Rayan Teixeira de
Santos,Carla Silvana da Silva
Wanke,Bodo
Silva Júnior,Roberto Moreira da
Santos,Marcelo Cordeiro dos
Cruz,Kátia Santana
Monte,Rossicléia Lins
Nocker,Andreas
Souza,João Vicente Braga de
PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
description Background The incidence of invasive mycoses is increasing worldwide. PCR-RFLP was applied to the identification of 10 reference strains and 90 cultures of agents of invasive mycoses. In addition, the new approach was applied to detect fungal agents in 120 biological samples (blood, cerebrospinal fluid and bone marrow). PCR-RFLP results were compared with the ones obtained with conventional methods (culture, microscopy, and biochemical testing). Results The assays carried out with the reference strains (Candida albicans, Candida parapsilosis, Candida tropicalis, Candida krusei, Candida guilliermondii, Cryptococcus neoformans, Cryptococcus gattii and Histoplasma capsulatum), demonstrated that the RFLP profiles were correctly predicted by the in silico investigation and allowed unequivocal identification of all chosen reference strains. The PCR-RFLP also identified 90 cultures of agents of invasive mycoses correctly, 2.5 times faster than the conventional assays. Evaluating PCR-RFLP with biological samples it was observed that the PCR was found to be 100% accurate and the RFLP profiles allowed the identification of the etiological agents: C. neoformans (n = 3) and C. gattii (n = 1) in CSF samples, H. capsulatum (n = 1) in bone marrow and C. albicans (n = 2) in blood cultures. The detection and identification by PCR-RFLP were found to be between two to ten times faster than the conventional assays. Conclusion The results showed that PCR-RFLP is a valuable tool for the identification of invasive mycoses that can be implemented in hospital laboratories, allowing for a high number of clinical analyses per day.
author Sousa,Diego Rayan Teixeira de
Santos,Carla Silvana da Silva
Wanke,Bodo
Silva Júnior,Roberto Moreira da
Santos,Marcelo Cordeiro dos
Cruz,Kátia Santana
Monte,Rossicléia Lins
Nocker,Andreas
Souza,João Vicente Braga de
author_facet Sousa,Diego Rayan Teixeira de
Santos,Carla Silvana da Silva
Wanke,Bodo
Silva Júnior,Roberto Moreira da
Santos,Marcelo Cordeiro dos
Cruz,Kátia Santana
Monte,Rossicléia Lins
Nocker,Andreas
Souza,João Vicente Braga de
author_sort Sousa,Diego Rayan Teixeira de
title PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
title_short PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
title_full PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
title_fullStr PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
title_full_unstemmed PCR-RFLP as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the North of Brazil
title_sort pcr-rflp as a useful tool for diagnosis of invasive mycoses in a healthcare facility in the north of brazil
publisher Pontificia Universidad Católica de Valparaíso
publishDate 2015
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582015000300014
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