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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Duplex Real-Time PCR Using Sybr Green I for Quantification and Differential Diagnosis between Salmonella Enteritidis and Salmonella Typhimurium

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Autor(es):
Rubio, M. S. [1] ; Penha, F. R. A. C. [1] ; Almeida, A. M. [1] ; Barbosa, F. O. [1] ; Berchieri Jr, A.
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Estadual Paulista, Fac Ciencias Agr & Vet, FCAV UNESP, Jaboticabal Campus, Jaboticabal, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Brazilian Journal of Poultry Science; v. 21, n. 1 JAN-MAR 2019.
Citações Web of Science: 0
Resumo

The incidence of foodborne diseases caused by the genus Salmonella spp. in industrialized countries is often high in epidemiological surveys. Obtaining a rapid diagnostic test for identification of bacteria is crucial in order to rapidly implement control measures to contain bacterial spread, to reduce losses in animal production and to avoid risks from food-borne infections to human health. The aim of this study was to standardize duplex real-time PCR using SYBr Green I for differential and quantitative diagnosis of S. Typhimurium and S. Enteritidis. According to the experiment, the melting temperature of 85 degrees C was observed for a 206bp amplified product when S. Enteritidis DNA was added to the reaction. S. Typhimurium DNA showed that the melting temperature of 79 degrees C when observed for a 62bp amplified product. The standard curve showed the high sensitivity of the proposed test, since it was possible to obtain eight quantification points, starting at 10(8) CFU/mL and ending at 10(1) CFU/mL. As a result of the present study, a real-time PCR duplex reaction with high sensitivity, specificity and based on the fluorescence of SYBr Green I was standardized. In addition, this methodology aligns low cost to the faster diagnostic result, in relation to other molecular tests, making it attractive for application in routine laboratory analyzes. (AU)

Processo FAPESP: 14/05496-7 - Utilização de PCR em tempo real quantitativo para diagnóstico diferencial entre Salmonella enterica subesp. enterica sorovares enteritidis, Typhimurium e Gallinarum (biovares Gallinarum e Pullorum) em aves domésticas (Gallus Gallus)
Beneficiário:Marcela da Silva Rubio
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/24017-7 - Avaliação da infecção e imunidade de linhagens de aves (Gallus Gallus) suscetíveis e resistentes ao desafio por Salmonella enterica subesp. enterica sorovar Gallinarum
Beneficiário:Rafael Antonio Casarin Penha Filho
Linha de fomento: Bolsas no Brasil - Pós-Doutorado