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OJVR
Online Journal of Veterinary
Research©
(Including Medical
and Laboratory Research)
Established 1994
ISSN 1328-925X
Volume 25 (8):593-599, 2021.
Erythrocyte oxidation
markers in sheep infected by Theilera spp.
Hasan Baghshani1*,
Gholam Reza Razmi2, Saeed Yaghfouri2,
Amin Ahmadi Dezaki2
1Department of Basic
Sciences and 2Department of Pathobiology, School of Veterinary
Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
Baghshani H, Razmi GH, Yaghfouri S, Dezaki AA., Erythrocyte oxidation markers in sheep infected
by Theilera spp., Onl J Vet
Res., 25 (8):593-599, 2021. Authors
report oxidative stress markers in sheep erythrocytes naturally infected with
theileriosis. Thirty adult fat-tailed sheep were selected by clinical
examination and positive peripheral Theileria spp blood smears. Controls consisted of 20 normal sheep
without Theileria
confirmed by blood smears. We determined erythrocyte haemolisate superoxide dismutase (SOD), glutathione peroxidase (GPx) and catalase (CAT), reduced glutathione (GSH) content
and malondialdehyde (MDA). Compared with controls, erythrocyte
SOD was lower (P < 0.05) ~-22% and GSH ~-33%, but MDA higher (P < 0.05) 90%,
in sheep with Theileriosis. There were no differences in erythrocyte GPx or CAT. The results suggest that in sheep, Theileria spp boosts
lipid peroxidation in erythrocytes.
Keywords: Theileria,
Oxidative stress, Sheep, Endogenous antioxidants, Malondialdehyde.
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