Changes in serum adenosine deaminase and isoenzyme levels in addition to routine liver biochemical parameters in sheep with chronic fascioliasis/Alterações nos níveis séricos de adenosina desaminase e isoenzima em relação aos parâmetros bioquímicos de rotina do fígado de ovinos com fasciolíase crônica

This study assessed changes in the levels of adenosine deaminase (ADA) and its isoenzymes in addition to routine liver biochemical parameters in sheep with fascioliasis. The study was conducted on 35 Akkaraman sheep. Of these, 25 sheep were diagnosed with fascioliasis based on anamnesis and clinical signs, and had endoparasites based on parasitological examinations (Fasciola-infected group). The remaining 10 sheep that were sampled from a single healthy herd (same flock) different from the infected group did not have any clinical signs or endoparasites (control group). Total protein (TP), albumin (ALB), and globulin (GLB) levels gradually increased on days after treatment compared to the values measured before treatment; the increases were statistically significant on all days for TP levels but only on day 14 after treatment for GLB levels (P < 0.05). Although, the ALB levels did not increase significantly on days after treatment, the ALB level and ALB/GLB ratio on days 7 and 14 after treatment were still lower than the values of day 21 after treatment and control group (P < 0.05). Total bilirubin (T-Bil) and direct bilirubin (D-Bil) levels on days 14 and 21 were significantly lower than that of day 0 (before treatment) and day 7 after treatment (P < 0.05). These results indicated that the increase in adenosine deaminase (ADA) and ADA1 levels may be due to possible concomitant infection of Fasciola larvae (in the parenchyma) and adults (in the bile duct). Key words: adenosine deaminase, biochemistry, diagnosis, Fasciola spp., sheep. Este estudo teve como objetivo avaliar as alterações nos níveis de adenosina desaminase (ADA) e suas isoenzimas, além de parâmetros bioquímicos hepáticos de rotina em ovinos com fasciolíase. O estudo foi realizado em 35 ovinos s Akkaraman. Destes, 25 ovinos foram suspeitas de ter fasciolíase com base na anamnese e sinais clínicos, e diagnosticados com endoparasitas com base em exames parasitológicos (grupo de estudo). Os 10 ovinos restantes que foram amostrados no mesmo rebanho não apresentavam quaisquer sinais clínicos ou endoparasitas (grupo controle). Os níveis de proteína total (TP), albumina (ALB) e globulina (GLB) aumentaram gradualmente nos dias após o tratamento em comparação com os valores antes do tratamento; os aumentos foram estatisticamente significativos em todos os dias para os níveis de TP, mas apenas após o dia 14 de tratamento para os níveis de GLB (P < 0,05). Embora os níveis de ALB não tenham aumentado signi