Diagnóstico da leishmaniose visceral canina por meio de amostras de conjuntiva ocular, humor aquoso, membrana sinovial, líquido sinovial e líquido cefalorraquidiano

• Ano de defesa: 2012
• Autor(a) principal: SEVERO, Maíra Santos
• Orientador(a): FAUSTINO, Maria Aparecida da Gloria
• Banca de defesa: SANTOS, Jamile Prado dos, LIRA, Nair Silva Cavalcanti de, RAMOS, Carlos Alberto do Nascimento
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal Rural de Pernambuco
• Programa de Pós-Graduação: Programa de Pós-Graduação em Ciência Veterinária
• Departamento: Departamento de Medicina Veterinária
• País: Brasil
• Palavras-chave em Português: Leishmaniose; Cão; Diagnóstico
• Área do conhecimento CNPq: CIENCIAS AGRARIAS::MEDICINA VETERINARIA
• Link de acesso: http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5747

Canine Visceral Leishmaniasis (CVL) is a severe systemic zoonosos caused by the obligate intracellular protozoan Leishmania infantum. The dogs are the major reservoir of the disease and may develop since asymptomatic infection to a variety of clinical signs, such as peripheral lymphadenopathy, weight loss, lethargy, ulcerative lesions of the skin and fever. Ocular, orthopedic and neurological disorders can also be seen associated with CVL, such as keratitis, seizures, behavioral changes, joint pain and lameness. This fact includes the disease in the differential diagnosis of ophthalmic disorders, osteoarticular and nervous system, especially in endemic areas to infection. The aim of this study was the diagnosis of canine visceral leishmaniasis using samples of conjunctiva, aqueous humor, synovial fluid, synovial membrane and cerebrospinal fluid (CSF). The ELISA test was applied to samples of CSF, synovial fluid and aqueous humor, and histological and immunohistochemical evaluations were performed in the conjunctiva and in the synovial membrane of these animals. The samples were collected from 20 dogs serologically positive for visceral leishmaniasis. Through the immunoenzymatic assay could detect anti-Leishmania IgG antibodies in a sample of CSF and aqueous humor, and six samples of synovial fluid. Immunohistochemistry showed positive staining of amastigotes of L. infantum five synovial membranes and connective five studied. From the results, we conclude that amastigotes of Leishmania sp. are found parasitizing the synovial membrane and the conjunctiva of dogs serologically positive for the disease, as well as specific IgG antibodies in aqueous humor, CSF and synovial fluid of these animals.