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Master's Dissertation
DOI
10.11606/D.10.2010.tde-11012012-125058
Document
Author
Full name
Simoni Maruyama
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Larsson, Carlos Eduardo (President)
Balda, Ana Claudia
Brandão, Paulo Eduardo
Title in Portuguese
Estudo clínico-epidemiológico de casos de Granuloma lepróide canino, diagnosticados pelas histopatologia e técnica de reação em cadeia de polimerase (PCR)
Keywords in Portuguese
Cães
Dermatopatias
Granuloma Lepróide
Micobacterioses
PCR
Abstract in Portuguese
O Granuloma "lepróide canino", quadro sindrômico, também denominada lepra canina, foi descrito pela primeira vez em 1973, no Zimbábue, em cães da raça Boxer e Bull mastiff e consiste em um dos tipos de micobacterioses tegumentares encontradas nos animais de companhia. No presente estudo, objetivou-se caracterizar os aspectos clínicos e epidemiológicos da enfermidade, nos animais atendidos no período de 1990 a 2010, no Serviço de Dermatologia do Hospital Veterinário da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo, bem como determinar a ocorrência de similaridade gênica da micobactéria envolvida, entre os animais brasileiros e os descritos em trabalhos estrangeiros. A amostragem foi composta de 37 animais com diagnóstico estabelecido por exame histopatológico ou citobacterioscópico cutâneo, onde se verificou evidente predisposição racial (83,7%), principalmente da raça Boxer (61,2%), ampla distribuição etária e ausência de predisposição sexual. Os cães apresentavam bom estado geral, sem comprometimento sistêmico, apenas tegumentar, com predomínio das lesões de morfologia nodular (75,6%) e situadas em pavilhões auriculares (86,5%). O diagnóstico foi estabelecido a partir dos seguintes exames subsidiários: histopatologia cutânea (56,8%), citobacterioscopia (21,6%) e por ambas as metodologias (21,6%). Trata-se ainda de enfermidade ocorrente em várias unidades federativas brasileiras, no entanto parece ser pouco diagnosticada e assim submetida a tratamentos equivocados, o que foi verificado em 54% dos cães tratados preteritamente. Os fármacos empregados no tratamento sistêmico, rifampicina ou enrofloxacina, mostraram-se igualmente eficazes, com estabelecimento da alta clínica em tempo médio de 84,1 dias. Já técnica de reação em cadeia de polimerase (PCR) foi executada a partir de cortes histológicos cutâneos, emblocados em parafina, oriundos de 13 animais, sendo que em 09 (69,2%) deles se detectou a presença de Mycobacterium cepa CLGS, pelo método da PCR em tempo real e a confirmação do agente em comum entre os casos do Brasil e de outros países.
Title in English
Clinical and epidemiological study of cases of Canine leproid granuloma diagnosed by histopathology and by polymerase chain reaction (PCR)
Keywords in English
Canine leproid
Dogs
Mycobacteriosis
PCR
Skin Diseases
Abstract in English
Canine leproid granuloma, syndromic, also called "canine leprosy, was first described in 1973 in Zimbabwe in Boxer dogs and Bull mastiff and consists of a type of soft tissue mycobacterial infections found in pets. In the present study aimed to characterize the clinical and epidemiological aspects of the disease in animals treated between 1990-2010 at the Department of Dermatology, Veterinary Hospital, Faculty of Veterinary Medicine, University of São Paulo, and to determine the occurrence of genetic similarity of mycobacteria involved, of dogs from Brazil and other countries. The sample consisted of 37 animals with diagnosis established by histopathology or cytology skin, where there was clear racial predisposition (83.7%), mainly Boxer (61.2%), broad age distribution and no sexual predisposition. The dogs were in good general condition, without systemic involvement, only cutaneous, with a predominance of nodular lesions morphology (75.6%) located in the ears (86.5%). The diagnosis was established from the following exams: cutaneous histopathology (56.8%), citology (21.6%) and by both methods (21.6%). It is still disease occurring in several Brazilian states, however appears to be underdiagnosed and thus subjected to inappropriate treatment, which was observed in 54% of dogs treated. The drugs used in systemic treatment, rifampin and enrofloxacin, were equally effective, with the establishment of recovery a mean of 84.1 days. Already technique of polymerase chain reaction (PCR) was performed from histological sections of skin, paraffin embedded, from 13 animals, while in 09 (69.2%) of them detected the presence of Mycobacterium strain CLGS by method of real-time PCR and confirmation of the agent in common between the cases of Brazil and other countries.
 
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SIMONI_MARUYAMA.pdf (1.27 Mbytes)
Publishing Date
2012-09-11
 
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