Interação de hemoparasitos e hemoparasitoses em casos clínicos de trombocitopenia em cães no município de Goiânia
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2011-02-25
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Universidade Federal de Goiás
Resumo
The most important hemoparasites in dogs clinic are often associated with the manifestation of thrombocytopenia, being characterized by a lowering in platelet numbers. The aim of the current study was to verify the involvement of
hemoparasites in finding thrombocytopenia in dogs from the city of Goiânia treated at the Veterinary Hospital of Federal University of Goiás (HV/EV/UFG). For this study, 300 animals were selected and divided into two groups:one group with 150 animals with thrombocytopenia (< 200.000 platelets/mm3)and another one with 150 non-thrombocytopenic
animals (≥ 200.000 platelets/mm3). Blood samples with EDTA were collected in the two groups for total DNA extraction. All DNA eluates were tested by PCR for specific detection of Ehrlichia canis, Anaplasma canis,Hepatozoon canis, Mycoplasma haemocanis, Babesia canis vogeli, Babesia gibsoni and Theileria equi. The frequency of positive samples within the group of thrombocytopenic animals was 71.3% (107/150) to E. canis, 8.7% (13/150) for A. platys, 9.3% for B. c. vogeli (14/150), 2.0% (3/150) for H. canis and 3.3% (5/150)for M. haemocanis.In the group of non-thrombocytopenic animals the frequency of positives was 14% (21/150) for E. canis, 3.3% (5/150) for A. platys, 0.7% (1/150) for B. c. Vogeli, 4.0% (6/150) for H. canis and 1.3% (2/150) for M.haemocanis. Babesia gibsoni and Theileria equi were not detected using PCR assays.Statisti cally significant associations between thrombocytopenia and infections by hemoparasites were only observed for E. canis (P <0.05) and B. c.vogeli (P <0.05). The most frequently hemoparasitosis was Canine Monocitic
Erliquiosis, which occurred in 71,33% (107/150) within thrombocytopenic dogs group and in 14% (21/150) within
non-thrombocytopenic dogs group. There was a relationship between the thrombocytopenia degree observed and the infection by E. canis. Values of severe thrombocytopenia (<50.000 platelets/mm3 blood) can be considered an indicator for infection of E. canis.
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COSTA, Hérika Xavier da. Interaction of hemoparasites and hemoparasitoses in clinical cases of thrombocytopenia in dogs in the city of Goiânia. 2011. 73 f. Dissertação (Mestrado em Ciências Agrárias - Veterinaria) - Universidade Federal de Goiás, Goiânia, 2011.