Tratamento experimental de cães naturalmente infectados com vírus da cinomose na fase neurológica com uso da Ribavirina e Dimetil-sulfóxido(DMSO)
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Data
2008-03-03
Autores
Mangia, Simone Henriques [UNESP]
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Editor
Universidade Estadual Paulista (Unesp)
Resumo
Este estudo teve por objetivos testar a eficácia da ribavirina em cães acometidos de cinomose na fase neurológica; avaliar os efeitos colaterais da mesma através do monitoramento hematológico e provas bioquímicas; avaliar a resposta imunológica no sistema nervoso central dos cães através do exame de líquor; adaptar uma dose e via de administração adequada da ribavirina em cães e testar a eficácia do DMSO como permeante de membranas biológicas atuando como vetor da ribavirina. Foram utilizados 20 cães com sinais clínicos neurológica, divididos em dois grupos de tratamento, sendo que um grupo recebeu a ribavirina e outro a associação da ribavirina e o DMSO, sem distinção de sexo e raça, com idades até seis anos e tempo de evolução máximo de 10 dias. Todos os animais foram avaliados clinicamente e realizado o teste de imunofluorescência direta de sangue para inclusão no estudo. Os exames complementares foram realizados de forma rotineira, o líquor foi colhido antes e após o tratamento, as drogas foram administradas durante 15 dias consecutivos e realizada a avaliação clínica diária dos animais. Pelos resultados observamos que a ribavirina demonstrou atividade efetiva contra o vírus da cinomose, exercendo leves efeitos colaterais na medula óssea, sistema imune e sistema gastro-intestinal. No líquor observamos diminuição da produção de anticorpos e verificamos que o DMSO tornou a ação da ribavirina mais eficaz.
This study aimed to test the ribavirin efficacy in dogs infected with canine distemper virus in neurological stage; to evaluate this collateral effects by hematological and biochemical evaluation; to evaluate the immunological response on dogs central nervous system (CNS) by cerebrospinal fluid (CSF) analysis; to adapt a dose and an adequate administration route of ribavirin in dogs and to test the efficacy of dimethylsulphoxide (DMSO) in increasing the permeability of biological membranes acting as ribavirin vector. Twenty dogs with neurological signs, divided in two treatment groups, without sex and breed distinction, till six years old and a maximum evolution time of 10 days were used. All animals were selected based on clinical sings and the blood direct fluorescent test (DFA). The hemogram, biochemical and urinalsis test were carried out. At the complementary tests, CSF was collected before and after the treatment, and ribavirin and its association with DMSO were administered during 15 days, consecutive, and the animal clinical evaluation was carried out daily. Based on the results, ribavirin demonstrated effective activity against canine distemper virus, besides its light collateral effects in bone marrow, immune and gastrointestinal systems. In CSF, the lowering of antibody production, and the positive effects of DMSO on ribavirin efficacy were observed.
This study aimed to test the ribavirin efficacy in dogs infected with canine distemper virus in neurological stage; to evaluate this collateral effects by hematological and biochemical evaluation; to evaluate the immunological response on dogs central nervous system (CNS) by cerebrospinal fluid (CSF) analysis; to adapt a dose and an adequate administration route of ribavirin in dogs and to test the efficacy of dimethylsulphoxide (DMSO) in increasing the permeability of biological membranes acting as ribavirin vector. Twenty dogs with neurological signs, divided in two treatment groups, without sex and breed distinction, till six years old and a maximum evolution time of 10 days were used. All animals were selected based on clinical sings and the blood direct fluorescent test (DFA). The hemogram, biochemical and urinalsis test were carried out. At the complementary tests, CSF was collected before and after the treatment, and ribavirin and its association with DMSO were administered during 15 days, consecutive, and the animal clinical evaluation was carried out daily. Based on the results, ribavirin demonstrated effective activity against canine distemper virus, besides its light collateral effects in bone marrow, immune and gastrointestinal systems. In CSF, the lowering of antibody production, and the positive effects of DMSO on ribavirin efficacy were observed.
Descrição
Palavras-chave
Cão - Doenças, Cinomose - Tratamento, Dogs - Canine distemper
Como citar
MANGIA, Simone Henriques. Tratamento experimental de cães naturalmente infectados com vírus da cinomose na fase neurológica com uso da Ribavirina e Dimetil-sulfóxido(DMSO). 2008. 185 f. Dissertação (mestrado) - Universidade Estadual Paulista, Faculdade de Medicina Veterinária e Zootecnia, 2008.