Perfil do parasitismo sanguíneo por análises moleculares envolvendo Babesia, Ehrlichia e Hepatozoon em cães sintomáticos na área metropolitana de Goiânia

• Autor(a) principal: DUARTE, Sabrina Castilho
• Data de Publicação: 2010
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Repositório Institucional da UFG
• dARK ID: ark:/38995/0013000004g91
• Texto Completo: http://repositorio.bc.ufg.br/tede/handle/tde/1207
• topic: babesiose, hemoparasitos, ehrlichiose, filogenia,hepatozoonose, PCR; babesiosis, hemoparasitosis, ehrlichiose, molecular characterization, hepatozoonosis, PCR; CNPQ::CIENCIAS AGRARIAS::CIENCIA E TECNOLOGIA DE ALIMENTOS::TECNOLOGIA DE ALIMENTOS

In the genera Babesia, Ehrlichia and are positioned Hepatozoon species of parasites responsible for babesiosis, ehrlichiosis and hepatozoonosis respectively. These organisms have in common the fact that they are transmitted by tick vectors in dogs infected and cause general symptoms such as fever, anemia and jaundice accompanied by intracellular infections. In the state of Goias had not work with phylogenetic approach for these blood parasites. The overall objective of this study was molecular analysis of isolates of Babesia, Hepatozoon and Ehrlichia obtained from symptomatic dogs in Goiânia, Goiás State, thus confirming that the species and subspecies involved in infections. For this, DNA extraction was carried out of samples, followed by carrying out PCR with generic primers. After the PCR was obtained fragments of the 18S rRNA region for samples of Babesia and Hepatozoon and 16S rRNA for the detection of species of the genus Ehrlichia. PCR products obtained were purified and used for sequencing. We sequenced 35 samples of Babesia spp. and of these 17 were used for phylogenetic studies. Two samples of Hepatozoon spp. 17 samples were sequenced and Ehrlichia spp which only five were used for analysis. Analyses performed with the identity of sequenced samples allowed the identification of B. vogeli canis, Hepatozoon canis and Ehrlichia canis. When confronted with the species and subspecies of reference from other regions of Brazil and the world showed close molecular similarity, which demonstrates the low variability between different samples from different geographic regions. For the analysis using the program MEGA4 and subsequent construction of a phylogenetic tree samples in this study formed their own groups always association with the reference samples for the respective species. Thus it was concluded that samples of B. c. vogeli H. canis and E. canis from dogs in the city of Goiania GO show close similarity with isolates from other regions of the world