Consulta: creatorFacets:"Samartino,Luis Ernesto"
Registros recuperados: 4
Data/hora: 11/06/2024 11:18:08

Diagnosis of canine leptospirosis using an immunomagnetic separation-PCR method
Provedor de dados: 58
Autores: Monte,Leonardo Garcia; Jorge,Sérgio; Luiz,João Paulo Mesquita; Sinnott,Francine; Seixas,Fabiana Kömmling; Aleixo,José Antonio Guimarães; Samartino,Luis Ernesto; Conceição,Fabricio Rochedo; Hartleben,Cláudia Pinho.
Diagnosis of leptospirosis by PCR is hampered due to the presence of substances on biological fluids. Here, we report an immunomagnetic separation step prior to PCR which improved the detection of Leptospira spp. in blood and urine samples from dogs. It resulted in a significant improvement on sensitivity for diagnosis of canine leptospirosis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Canine leptospirosis; IMS-PCR; LipL32.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200023

Fluorescence polarization assay, competitive enzyme-linked immunosorbent assay (ELISA-C) and indirect ELISA for the diagnosis of brucellosis in buffaloes (Bubalus bubalis)
Provedor de dados: 65
Autores: Paulin,Lília Márcia Silva; Samartino,Luis Ernesto; Conde,Sandra Beatriz; Federsoni,Igor Stefan Poppovic; Ferreira,Fernando; Amaku,Marcos; Ferreira Neto,José Soares.
The objective of the present study was to compare the performance of three serological tests for diagnosis of Brucella abortus infections in buffaloes (Bubalus bubalis). Serum samples collected from 696 adult females were submitted to the competitive enzyme-linked immunosorbent assay (ELISA-C), (I-ELISA), fluorescence polarization test (FPA), 2-mercaptoethanol test (2-ME) and complement fixation test (CFT). The gold standard was the combination of CFT and 2-ME, considering as positive the reactors in both CFT and 2-ME, and as negative those non-reactors. ROC analyses were done for C-ELISA, I-ELISA and FPA and the Kappa agreement index were also calculated. The best combinations of relative sensitivity (SEr) and relative specificity (SPr) and Kappa were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serological tests; Serodiagnosis; Buffaloes; Brucellosis.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782012000900017

Isolation of Leptospira spp. from a man living in a rural area of the Municipality of Cruz Alta, RS, Brazil
Provedor de dados: 65
Autores: Silva,Felipe Jorge da; Silva,Glaucenyra Cecília Pinheiro; Loffler,Sylvia Grune; Brihuega,Bibiana; Samartino,Luis Ernesto; Alarcon,Miguel Frederico Fernandez; Santos,Carlos Eduardo Pereira dos; Mathias,Luis Antonio.
The aim of this study was to describe the isolation of a pathogenic strain of Leptospira interrogans from the urine sample of a male human living in the rural area of the County of Cruz Alta, Rio Grande do Sul. An aliquot of each urine sample was sown in a Fletcher and Ellinghausen - McCullough - Johnson - Harris (EMJH) media. Samples in which there was growth of spirochetes were sent to the Leptospirosis Laboratory of the Institute of Pathobiology in the National Institute of Agricultural Technology, Buenos Aires, Argentina and were typified by the Multiple Locus of Variable Number Tandem Repeat technique (MLVA). Leptospira interrogans serovar Copenhageni strain Fiocruz L1-130 was isolated, and this is a very important finding that serves as a warning to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human leptospirosis; Isolation; MLVA; Farm; Brazil.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000100047

Validação interlaboratorial do teste de polarização fluorescente para o diagnóstico sorológico da brucelose bovina
Provedor de dados: 65
Autores: Mathias,Luis Antonio; Corbellini,Luis Gustavo; Maia,Lúcia; Nascimento,Kelly Fagundes; Paulin,Lília Márcia Silva; Samartino,Luis Ernesto; Serqueira,Marco Antonio; Soares Filho,Paulo Martins; Souza,Marcília Maria Alves de.
Esta investigação teve por objetivo validar o teste de polarização fluorescente (TPF) para o diagnóstico sorológico da brucelose bovina, determinando a sensibilidade (SE) e a especificidade relativas (SP) e verificando a reprodutibilidade do teste em quatro laboratórios no Brasil. Foram selecionadas 1.389 amostras de soro sanguíneo, as quais foram inicialmente submetidas aos testes do antígeno acidificado tamponado (AAT) e mercaptoetanol (2-ME). As mesmas amostras foram submetidas à reação de fixação de complemento (RFC) e ao TPF. Para a avaliação do TPF, foi adotada a combinação dos resultados do AAT, da RFC e do 2-ME, utilizados como população de referência (padrão-ouro). Para a determinação do ponto de corte do TPF que proporciona a melhor combinação de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brucelose bovina; Diagnóstico sorológico; Teste de polarização fluorescente.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010001000013