Effects of different doses of doxycycline hyclate on haematological parameters of dogs with ehrlichiosis
DOI:
https://doi.org/10.5433/1679-0367.2016v37n1p53Keywords:
Ehrlichia canis, Hematology, Blood platelets.Abstract
This study aimed to compare the effects of two doses of doxycycline hyclate on red blood cells, hemoglobin, hematocrit, white blood cells and platelets of dogs with ehrlichiosis. Group I, comprised of healthy dogs (n=6), negative on serology for Ehrlichia canis and Leptospira spp., real time PCR for E. canis and Anaplasma platys, and on semi–nested PCR for Babesia canis; Groups II (n=6) and III (n=6), comprised of dogs with suggestive clinical history, positive serology and/or real time PCR for E. canis, negative on research for anti-Leptospira spp. antibodies and real time PCR for A. platys, and on semi–nested PCR for B. canis were studied. Sick dogs were treated with doxycycline hyclate every 12 hours, by mouth, for 30 days (5 mg/kg, group II; 10 mg/kg, group III). Complete blood counts were performed before, after 15 days, and 10 days after period of treatment was complete. No difference between groups at the studied time points were noticed for red blood cells, hemoglobin, haematocrit and white blood cells. Difference was observed for platelets between group I and groups II and III (p<0.0001) at the study onset. After 15 days of treatment, the mean platelet for group III was lower than groups I (p=0.008) and II (p=0.0007), indicative of persistent thrombocytopenia, already absent in group II. No difference between groups was noticed at final time point, which suggests that both treatments increased platelets in dogs naturally infected with E. canis.Downloads
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