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Proposta de reação em cadeia da polimerase (PCCR semi-nested para pesquisa e diferenciação dos vírus BK e JC

Authors: Domingues, Juliana Tonietto; Paris, Fernanda de; Schmitt, Virginia M.;

Proposta de reação em cadeia da polimerase (PCCR semi-nested para pesquisa e diferenciação dos vírus BK e JC

Abstract

Objetivos: Implantar e otimizar a reação em cadeia da polimerase (PCR) semi-nested para pesquisa e diferenciação dos vírus BK e JC a partir de amostras clínicas armazenadas. Métodos: Foram testadas 9 amostras clínicas (urina e líquor). As amostras foram submetidas à PCR semi-nested, e foram testadas também com diferentes condições, visando a otimização da reação. Resultados: Primeiramente os controles positivos foram testados quanto à especificidade através de uma PCR direta, e os resultados obtidos confirmaram a especificidade. Quando testadas por PCR semi-nested, as amostras apresentaram os seguintes resultados: 100% (nove amostras) positivas para o vírus BK e 66,6% (seis amostras) positivas para o vírus JC. Conclusões: Otimizou-se a reação de PCR seminested, específica para a identificação dos poliomavírus, para assim atuar como uma ferramenta diagnóstica para melhor acompanhamento de pacientes imunocomprometidos.

Aims: To implant and optimize the semi-nested polimerase chain reaction (PCR) to identify and differentiate BK and JC virus. Methods: Nine clinical (urine and liquor) samples have been tested with semi-nested PCR. In order to optimize this reaction, different conditions have been tested. Results: Specificity has been confirmed by using JC and BK positive controls. When tested with semi-nested PCR, the clinical samples showed the following results: 100% (nine samples) positive from BK virus, and 66.6% (six samples) positive from JC virus. Conclusions: The semi-nested PCR reaction, specific for identification of polyomavirus, was optimized for acting as a tool for better follow-up of immunocompromised patients.

Keywords

Jc virus, Reação em cadeia da polimerase, Bk virus, Polyomavirus, Técnicas de diagnóstico molecular, Immunosuppression, Molecular diagnostic techniques, Polymerase chain reaction

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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