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Master's Dissertation
DOI
10.11606/D.42.2019.tde-05022019-153112
Document
Author
Full name
Rosana Alcalde
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 1999
Supervisor
Committee
Durigon, Edison Luiz (President)
Hagiwara, Mitika Kuribayashi
Jerez, José Antonio
Title in Portuguese
Cinomose Canina : detecção do RNA viral pela reação em cadeia pela polimerase (RT-PCR) em cães com diagnóstico clínico da doença.
Keywords in Portuguese
Cinomose canina
Diagnóstico molecular
Excreção viral
Reação em cadeia pela polimerase (RT-PCR)
Vias de eliminação viral
Vírus da cinomose canina
Abstract in Portuguese
O vírus da cinomose canina (VCC) é um patógeno viral, altamente, contagioso que pode causar doença sistémica letal, em cães e outros carnívoros em toda parte do mundo. Os cães afetados podem apresentar sintomas gastrentéricos, respitatórios e nervosos. As manifestações clínicas da doença inclue depressão, diarréia, vómito, desidratação, hiperqueratose dos coxins e focinho e espasmos musculares ou paresia de membros pélvicos, a qual pode persistir por longos períodos. Cães infectados, com sintomas clínicos de VCC, foram estudados para detecção do RNA viral pela técnica de PCR e Nested-PCR. Neste estudo, amplificou-se o gene da nucleoproteína (NP) em células mononucleares do sangue periférico (linfócitos), urina e saliva, de cães infectados com VCC, para detectar o genoma do mesmo, por RT-PCR, em diferentes amostras clínicas. A identificação do RNA viral foi concluída com sucesso, pelo método de RT-PCR, utilizando 2 pares de "primers" específicos do gene da nucleoproteína (NP). A técnica de RT-PCR, descrita neste etudo, pode ser um sistema de ensaio útil para determinar se cães suspeitos de infecção, por VCC, tenha níveis detectáveis de genes. Os resultados demonstram que a técnica de RT-PCR é exequível para o diagnóstico laboratorial de cinomose canina.
Title in English
Canine distemper vírus : detection of viral RNA by RT-PCR in dogs with clinical diagnosis.
Keywords in English
Canine distemper virus
Molecular diagnosis
Viral excretion
Abstract in English
Canine distemper vírus (CDV) is a highly contagious Viral pathogen which may cause lethal systemic in dogs and other carnivores throughout the world. Affected dogs show gastrointestinal and respiratory clinical slgns, and frequently develop clinical signs in the central nervous system (CNS). Clinical manifestations of the disease include depression, progressive loss of weight, dehydration, hyperkeratosis of the foot pads and nose, nervous symptoms and muscular spasms or posterior paralysis which may perslst for long periods. Infected dogs with clinical symptoms for CDV, were by detection of viral RNA by Polymerase Chaln Reaction (PCR) and Nested PCR. In this study,w e determinebdy the RT-PCRth e presenceo f nucleoprotein (NP) gene in peripheral blood mononuclear cells, urine and saliva from dogs infected with CDV. The goals of this study was to detect CDV renome by RT-PCR in different clinical samples. In this study, Identificatlon of NP mRNA was successfully achieved by using the RT-PCR method with two sets of NP gene specific primers. The RT-PCR technique described in thls study, may provide a useful assay system to determine whether the dogs suspected of CDV infection have detectable leveis of CDV genes. The results demonstrate that RT-PCR technique is rapid, sensitivity and specificity for vírus diagnosis.
 
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Publishing Date
2019-02-05
 
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