Abstract
The present study was carried out to evaluate the role of oxidative stress in the pathophysiologic process of acute renal failure associated with exertional rhabdomyolysis (ER) in Egyptian horses. ER was tentatively diagnosed in 31 Baladi horses based on case history, physical examination findings and confirmed by elevation of plasma creatine kinase (CK) and urine myoglobin concentrations. According to severity of the condition, the diseased horses were categorized into two main groups; the first group included 18 horses with minimal clinical signs and plasma CK <60 000 IU/L; whereas, the second group included 13 horses with overt clinical signs and plasma CK >100 000 IU/L). It was found that plasma creatol (CTL) was positively correlated (p < 0.01) with plasma malondialdehyde (MDA) (r = 0.775), nitric oxide (NO) (r = 0.768), methyguanididne (MG) (r = 0.995), CK (r = 0.768), urine glucose (r = 0.778), urine protein (r = 0.767), renal failure index (RFI) (r = 0.814) and urine sodium (r = 0.799) and negatively correlated (p < 0.01) with total antioxidant capacity (TAC) (r = −0.795), superoxide dismutase (SOD) (r = −0.815), glutathione peroxidase (GSH-Px) (r = −0.675), Vitamin C (r = −0.830), urine creatinine (r = −0.800), urine/plasma creatinine ratio (r = −0.827) and urine/plasma urea ratio (r = −0.807). The correlation between these biochemical variables might suggest a possible role of oxidative stress in renal injury associated with severe rhabdomyolysis in horses. It is suggested that exaggeration of oxidative stress associated with increased muscle membrane leakage plays a key role in acute kidney injury in Baladi horses with severe rhabdomyolysis.
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El-Ashker, M.R. Acute kidney injury mediated by oxidative stress in Egyptian horses with exertional rhabdomyolysis. Vet Res Commun 35, 311–320 (2011). https://doi.org/10.1007/s11259-011-9475-9
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DOI: https://doi.org/10.1007/s11259-011-9475-9