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A robust HIV-1 viral load detection assay optimized for Indian sub type C specific strains and resource limiting setting Biol. Res.
Acharya,Arpan; Vaniawala,Salil; Shah,Parth; Parekh,Harsh; Misra,Rabindra Nath; Wani,Minal; Mukhopadhyaya,Pratap N.
BACKGROUND: Human Immunodeficiency Virus Type 1 (HIV-1) viral load testing at regular intervals is an integral component of disease management in Acquired Immunodeficiency Syndrome (AIDS) patients. The need in countries like India is therefore an assay that is not only economical but efficient and highly specific for HIV-1 sub type C virus. This study reports a SYBR Green-based HIV-1 real time PCR assay for viral load testing and is designed for enhanced specificity towards HIV-1 sub type C viruses prevalent in India. RESULTS: Linear regression of the observed and reference concentration of standards used in this study generated a correlation coefficient of 0.998 (p&#8201;<&#8201;0.001). Lower limit of detection of the test protocol was 50...
Tipo: Journal article Palavras-chave: HIV-1; Gag; SYBR Green; RT PCR.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602014000100022
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Caracterização molecular da população viral associada ao mosaico comum em trigo no Brasil. Repositório Alice
VALENTE, J. B.; SILVA, F. N. da; FAJARDO, T. V. M.; NHANI JUNIOR, A.; LAU, D.; KUHNEM JUNIOR, P. R.; PEREIRA, F. S.; STEMPKOWSKI, L. A.; FARIAS, M.; CASA, R. T..
O mosaico comum é uma importante doença viral da cultura do trigo, sendo atribuído ao Soil-borne wheat mosaic virus (SBWMV - Furovirus) e Wheat spindle streak mosaic virus (WSSMV - Bymovirus), ambos transmitidos por Polymyxa graminis. A doença ocasiona reduções significativas de produtividade se cultivares suscetíveis forem semeadas em áreas com a presença do vetor e em condições favoráveis como inverno frio e úmido (Lau, 2014).
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Soil-borne wheat mosaic virus (SBWMV Furovirus); Wheat spindle streak mosaic virus (WSSMV Bymovirus); Doença viral; DAS ELISA; RT PCR; Next Generation Sequencing; Brasil; Trigo; Mosaico; Polymyxa Graminis; Vírus; Doença de Planta.
Ano: 2019 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1110524
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Diversity of enterovirus sequences detected in oysters by RT-heminested PCR ArchiMer
Dubois, Eric; Merle, Ghislaine; Roquier, Catherine; Trompette, Aurélien; Le Guyader, Soizick; Cruciere, Catherine; Chomel, Jean-jacques.
Oysters harvested in western France, from five sites associated with outbreaks of food-borne norovirus gastroenteritis between February 2000 and March 2001, were assayed for enterovirus RNA by reverse transcriptase-heminested polymerase chain reaction (RT-heminested PCR). Forty percent (21/52) of shellfish samples (pool of seven oysters) were contaminated by enteroviruses. Infectious coxsackieviruses serotype A21 were isolated from three of these positive samples. Amplicons corresponding to 65 base sequences in the 5' untranslated region of the enteroviral genome were analyzed by direct sequencing. Interpretable results were obtained from 18 amplicons, but mixtures of sequences confused the results from 3 samples. Sequences isolated from samples from the...
Tipo: Text Palavras-chave: Sequence analyze; RT PCR; Cell culture; Shellfish; Enterovirus.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-763.pdf
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MRNA detection by reverse transcription-PCR for monitoring viability and potential virulence in a pathogenic strain of Vibrio parahaemolyticus in viable but nonculturable state ArchiMer
Coutard, Francois; Pommepuy, Monique; Loaec, Solen; Hervio Heath, Dominique.
Aims: This work investigates the maintenance of viability and potential virulence of Vibrio parahaemolyticus in a viable but nonculturable population (VBNC) state by reverse transcription-polymerase chain reaction (RT-PCR). Methods and Results: Housekeeping genes, 16S-23S rDNA and rpoS, as well as virulence genes, tdh1 and tdh2, were selected and detected by PCR in a pathogenic strain of V. parahaemolyticus (Vp4). Their expression was then studied by RT-PCR in V. parahaemolyticus Vp4 cultivated in rich medium at 37degreesC. The 16S-23S rDNA and rpoS, tdh1, tdh2 genes were transcripted at the mid-logarithmic, stationary and late stationary phases, corresponding to various physiological states. The expression of these genes was also studied by RT-PCR in a...
Tipo: Text Palavras-chave: Vibrio parahaemolyticus; Viable but nonculturable state; Tdh2; Tdh1; RT PCR; RpoS; Environment; 16S 23S rDNA.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-1098.pdf
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