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| Registros recuperados: 100 | |
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| Negrão,F.J.; Wosiacki,S.H.; Alfieri,A.A.; Alfieri,A.F.. |
| Fragmentos com 721 pares de bases do gene da hemaglutinina (H) do vírus da cinomose canina (CDV), amplificados pela RT-PCR a partir de três estirpes vacinais (Snyder Hill, Onderstepoort e Rockborn) e de 27 amostras de campo, provenientes de cães com cinomose, foram clivados com as endonucleases Hinf I and Rsa I. A seleção das enzimas foi realizada por meio de análises in silico de seqüências do CDV depositadas em bases públicas de dados. Tanto as estirpes vacinais quanto as amostras selvagens do CDV apresentaram com a enzima Hinf I o mesmo perfil de restrição, confirmando a identidade do fragmento amplificado pela RT-PCR, uma vez que todas as estirpes com seqüências disponíveis (GenBank) têm sítios de restrição para essa enzima nas mesmas posições. O... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cão; Cinomose; Vírus da cinomose canina; Gene H; RT-PCR; RFLP. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352006000600019 |
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| Wei,Jian; Liang,Bing-Sheng. |
| Activated inhibitor of nuclear factor-κB kinase β (IKKβ) is necessary and sufficient for denervated skeletal muscle atrophy. Although several studies have shown that Mg2+/Mn2+-dependent protein phosphatase 1B (PPM1B) inactivated IKKβ, few studies have investigated the role of PPM1B in denervated skeletal muscle. In this study, we aim to explore the expression and significance of PPM1B and phosphorylated IKKβ (P-IKKβ) during atrophy of the denervated gastrocnemius. Thirty young adult female Wistar rats were subjected to right sciatic nerve transection and were sacrificed at 0 (control), 2, 7, 14, and 28 days after denervation surgery. The gastrocnemius was removed from both the denervated and the contralateral limb. The muscle wet weight ratio was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Muscular atrophy; Denervation; PPM1B; P-IKKβ; IKKβ; RT-PCR; Western blot. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000800004 |
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| Momtaz,H.; Rahimi,E.; Hajian,S.; Momeni,M.. |
| The objective of this study was to determine the prevalence of Hepatitis A Virus (HAV) in sea food samples in the Isfahan and Shahrekord townships in Iran. From September 2010 to April 2011, a total of 300 samples of fresh fish, shrimp, crab and lobster were obtained from randomly selected retail stores in the Isfahan and Shahrekord townships in Iran. The samples were tested for the presence of HAV using a reverse transcriptase- polymerase chain reaction method. Out of the total number of samples examined, 8 (2.7%) were found to be positive for HAV. This virus was detected in 5% and 1.7% of fresh fish and shrimp, respectively. This study shows the importance of sea food as potential sources of HAV infection in people in Iran. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: HAV; Sea food; RT-PCR; Iran. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000400015 |
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| Ocampo Ocampo,T; Ochoa Martínez,DL; Ramírez Rojas,S; Valdovinos Ponce,G; Nava Díaz,C. |
| El Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), a través del Campo Experimental "Zacatepec" en el estado Morelos, inició un programa de mejoramiento genético de plantas silvestres y semicultivadas de nochebuena ("nochebuena de sol"). Dicho programa requiere de la generación de una base de datos fitosanitarios con tolerancia a los principales patógenos. México no cuenta con información sobre las enfermedades causadas por virus en la nochebuena de sol, por lo que el objetivo de la presente investigación fue generar datos preliminares sobre los virus asociados a estos materiales. Con base en los resultados obtenidos en las técnicas DAS-ELISA y RT-PCR, se reportan por primera vez en México los virus Tobacco mosaic virus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nochebuena silvestre; Nochebuena semicultivada; Virus; DAS-ELISA; RT-PCR. |
| Ano: 2013 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572013000200011 |
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| Allendorf,SD; Albas,A; Cipriano,JRB; Antunes,JMAP; Appolinário,CM; Peres,MG; da Rosa,AR; Sodré,MM; Megid,J. |
| Current knowledge on bat lyssavirus infections in their native hosts is limited and little is known about the virulence, virus dissemination and transmission among free-living insectivorous bats. The present study is a brief description of rabies virus (RABV) dissemination in tissues of a naturally infected pregnant southern yellow bat (Lasiurus ega) and its fetuses, obtained by reverse-transcriptase polymerase chain reaction (RT-PCR). The RT-PCR was positive in samples from the brain, salivary gland, tongue, lungs, heart, kidneys and liver. On the other hand, the placenta, three fetuses, spleen, intestine and brown fat tissue tested negative. This research demonstrated the absence of rabies virus in the fetuses, thus, in this specific case, the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Rabies; Bats; Vertical transmission; RT-PCR. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992011000200014 |
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| Pilz,D.; Alfieri,A.F.; Lunardi,M.; Alfieri,A.A.. |
| Utilizou-se a técnica da RT-PCR para a detecção da região 5' UTR do genoma do vírus da diarréia viral bovina (BVDV) em pools de soros sangüíneos provenientes de um rebanho, constituído por 226 animais, que apresentava distúrbios da reprodução. A partir das amostras individuais de soro e de acordo com a categoria dos animais e o número de animais por categoria foram formados 10 pools (A a J) de soros. A primeira avaliação revelou a amplificação de um produto com 290pb nas reações referentes aos grupos D (35 vacas) e H (25 bezerros lactentes) que, após o desmembramento em amostras individuais, resultou na identificação de 11 vacas lactantes e 12 bezerros em amamentação positivos. Para a identificação de animais persistentemente infectados (PI) entre os 23... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bovino; Diarréia viral bovina; BVDV; RT-PCR. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000100001 |
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| Gomes,Maria de Lourdes C.; Ferreira,Lauze Lee A.; Gomes,Rodrigo Henryque; Lamarão,Letícia M.; Silveira,Edna da; Rodrigues,Lílian da Silva; Silva,Cláudio Ferreira da; Almeida,Eduardo Ribeiro de. |
| Echovirus (Echo) 30 or human enterovirus B is the most frequent enterovirus associated with meningitis cases. Epidemics and outbreaks of this disease caused by Echo 30 have occurred in several countries. In Brazil, Echo 30 has been isolated from sporadic cases and outbreaks that occurred mainly in the south and southeast regions. We used RT-PCR to examine Echo 30 isolates from meningitis cases detected from March 2002 to December 2003 in Belém, state of Pará, in northern Brazil. The patients were attended in a Basic Health Unit (State Health Secretary of Pará), where cerebrospinal fluid (CSF) was collected and stored in liquid nitrogen. Weekly visits were made by technicians from Evandro Chagas Institute to the health unit and samples were stored at -70ºC... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Echovirus 30; Aseptic meningitis; RT-PCR; Belém; Brazil. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000400006 |
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| Flores-Medina,Saúl; Díaz-García,Francisco J.; Guerra-Infante,Fernando M.. |
| Se realizó detección del ARN mensajero (ARNm) mediante un ensayo de transcripción reversa acoplada a la reacción en cadena de la polimerasa (RT-PCR) específico para la detección de Interleucina-1 alfa humana en leucocitos de armadillo estimulados con acetato de forbol miristato (PMA, por su siglas en inglés); esta estrategia permitió amplificar un fragmento de ADN de 491 pares de bases. Adicionalmente, la secuencia mostró alta homología nucleotídica con las secuencias de ADNc humano (99%), mono (93%), cerdo (82%), caballo (81%) y llama (81%), mientras que la secuencia deducida de aminoácidos fue compatible con el precursor de la proteína IL-1a humana. Estos resultados sugieren presencia del gen de interleucina-1 en el genoma del armadillo; sin embargo, es... |
| Tipo: Info:eu-repo/semantics/report |
Palavras-chave: Dasypus novemcinctus; Interleucina-1; RT-PCR; Secuenciación. |
| Ano: 2008 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0301-50922008000300008 |
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| Brito,C.F.A.; Oliveira,G.C.; Oliveira,S.C.; Street,M.; Riengrojpitak,S.; Wilson,R.A.; Simpson,A.J.G.; Correa-Oliveira,R.. |
| Sm14 is a 14-kDa vaccine candidate antigen from Schistosoma mansoni that seems to be involved in cytoplasmic trafficking of fatty acids. Although schistosomes have a high requirement for lipids, they are not able to synthesize fatty acids and sterols de novo. Thus, they must acquire host lipids. In order to determine whether Sm14 is present in different stages of the life cycle of the parasite, we performed RT-PCR. Sm14 mRNA was identified in all stages of the life cycle studied, mainly schistosomulum, adult worm and egg. Additionally, we used a rabbit anti-Sm14 polyclonal antibody in an indirect immunofluorescence assay to localize Sm14 in adult worm sections. The basal lamella of the tegument and the gut epithelium were strongly labeled. These tissues... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Sm14; Fatty acid-binding protein; FABP; Immunolocalization; RT-PCR. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000300014 |
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| Colariccio,Addolorata; Eiras,Marcelo; Chaves,Alexandre L. R.; Harakava,Ricardo; Chagas,César M.. |
| In the regions of Campinas and Sumaré, São Paulo, Brazil, hidroponically grown crops of Lettuce (Lactuca sativa) cv. Verônica, which showed virus-like symptoms were examined by electron microscope, biological, serological and molecular tests. Pleomorphic, enveloped particles (80-100 nm in diameter) were always detected in these samples. Experimentally inoculated host plants, including lettuce, reacted with tospoviruses-induced symptoms. Some differences were observed in Gomphrena globosa, which reacted by showing local lesions and systemic mosaic. Two isolates of Tomato chlorotic spot virus (TCSV) were identified by DAS-ELISA and by RT-PCR. The sequencing and alignment of the RT-PCR coat protein amplified fragments have indicated a high degree of homology... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Tospovirus; Serology; RT-PCR; Sequencing. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582004000300012 |
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| Artigas,Carmen Gloria; Melo,Angélica; Roa,Juan Carlos; Roa,Iván; Quijada,Ingrid; Vittini,Cecilia; Cabrera,María Elena; Risueño,Concepción. |
| La anormalidad citogenética más común en la leucemia mieloide crónica (LMC) es el cromosoma Philadelphia, producida por la t(9;22), cuya expresión molecular es el gen de fusión BCR-ABL, que codifica proteínas con actividad tirosinquinasa. Según el punto de ruptura de los genes BCR o ABL se produce una proteína de fusión de 210-kD(p210) o 190-kD(p190). La presencia de este gen de fusión en pacientes con LMC tiene implicancia diagnóstica. Con el propósito de detectar transcriptos de fusión del gen BCR/ABL en pacientes con leucemia mieloide crónica, procedentes de la IX Región de Chile, se estudiaron 14 muestras de sangre de 11 pacientes con LMC. A 2 de ellos, se les realizó seguimiento durante su tratamiento con Gleevec. Se aplicó la técnica de reacción en... |
| Tipo: Journal article |
Palavras-chave: BCR/ABL; RT-PCR; Leucemia mieloide crónica; Chile. |
| Ano: 2003 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000300004 |
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| Qiao,Suchi; Liu,Chang; Xu,Weijie; AZhaTi,WuBuLi; Li,Cheng; Wang,Zhiwei. |
| It is increasingly evident that the microenvironment of bone can influence cancer phenotype in many ways that favor growth in bone. CD147, a transmembrane protein of the immunoglobulin (Ig) superfamily, was identified independently in different species and has many designations across different species. However, expression levels of CD147 mRNA in bone cancer have not been described. In this study, we have used real-time fluorescence quantification (RT-PCR) to demonstrate CD147 expression in malignant bone cancer and benign bone tumor tissues. The results suggested that the expression of CD147 gene was significantly up-regulated in malignant bone cancer. Moreover, we found that over-expressed RANKL progressively enhanced osteoclast formation up to 48 h,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bone cancer; RT-PCR; Western blot; RANKL; Human. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2018000900608 |
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| Gonçalves,Marcos Cesar; Galdeano,Diogo Manzano; Maia,Ivan de Godoy; Chagas,César Martins. |
| O objetivo deste trabalho foi caracterizar biológica e molecularmente três isolados de Sugarcane mosaic virus (SCMV) de lavouras de milho, analisá-los filogeneticamente e discriminar polimorfismos do genoma. Plantas com sintomas de mosaico e nanismo foram coletadas em lavouras de milho, no Estado de São Paulo e no Município de Rio Verde, GO, e seus extratos foliares foram inoculados em plantas indicadoras e submetidos à análise sorológica com antissoros contra o SCMV, contra o Maize dwarf mosaic virus (MDMV) e contra o Johnsongrass mosaic virus (JGMV). Mudas de sorgo 'Rio' e 'TX 2786' apresentaram sintomas de mosaico após a inoculação dos três isolados, e o DAS-ELISA confirmou a infecção pelo SCMV. O RNA total foi extraído e usado para amplificação por... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Potyviridae; Zea mays; Mosaico comum do milho; RFLP; RT-PCR. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000400004 |
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| Pinotti,M.; Gollan,A; Canavesio,M.; Passeggi,C.; Larrateguy,M.V.; Paz,M.E.; Formentini,E.. |
| En la ciudad de Santa Fe, Argentina, durante los años 2000 y 2010, se aislaron 13 cepas autóctonas del virus Distemper Canino. Las muestras se tomaron de caninos con signos clínicos de la enfermedad y consistieron en hisopados nasales, oculares, faríngeos (tonsilas) y conjuntivales. Los aislamientos se realizaron en células MDCK, las cuales mostraron efecto citopatogénico característico. Los virus provenientes de la cosecha, se detectaron por RT-PCR de una región que codifica la nucleoproteína NP asociada al RNA (posición 769 a la 1055 del genoma) obteniéndose en todos los casos un producto de 287 pb comparable con el obtenido con cepas vacunales (cepas Ondersterpoort y Lederle), lo que indica presencia viral en todas las muestras procesadas. Las cepas... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Virus; Distemper canino; Estudio molecula; RT-PCR. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-34982016000200007 |
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| Zhao,Ting; Ye,Zhixu; Wang,Binlin; Cui,Yuxia; Nie,Yingjie; Yang,Bin; Chen,Kun; Zhang,Hua; Hu,Fangfang; Yu,Fuxun. |
| ABSTRACT To investigate the genetic variation and molecular epidemiology characteristics of Human Respiratory Syncytial Virus (HRSV) in Guizhou Province, nasopharyngeal aspirates were collected from patients with acute respiratory infection (ARI) in Guizhou Provincial People's Hospital, from December 2017 to March 2018, and inoculated to Hep-2 cells to isolate HRSV. Cells that showed cytopathic effect (CPE) were then confirmed by indirect immunofluorescence assay and reverse transcription. The sequence of the PCR products was determined for HRSV isolates, and the genetic variation was analyzed. Out of 196 nasopharyngeal aspirate samples, HRSV were isolated in 39. The second hypervariable region at the 3' terminal of glycoprotein gene (HVR2) sequence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Human respiratory syncytial virus; Virus isolation; RT-PCR; HVR2; Phylogenetic analysis; Molecular epidemiology. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702019000600427 |
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| Registros recuperados: 100 | |
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