Abstract
This study was conducted on ewes with pregnancy toxemia (PT) with an attempt to evaluate metabolic and oxidative profile in subclinical and clinical ovine pregnancy toxemia and to determine their association with diagnosis and prognosis of the disease. A total of 20 ewes having beta-hydroxy butyric acid (β-HBA) > 2.5mmol/L and proven clinical sings of PT, categorized as clinical PT (CPT); 12 ewes having β-HBA 0.8-2.5mmol/L and no clinical signs of PT, categorized at subclinical PT (SPT); and 10 ewes having β-HBA ≤ 0.8mmol/L, categorized as healthy control (CON) were enrolled. Among 20 CPT ewes, 11 had negative outcomes (non-survivors), six ewes had positive outcomes (survivors), and three were lost during follow-up. A significant increase in non-esterified fatty acid, β-HBA, triglycerides, gamma-glutamyl transferase, lactate dehydrogenase, and malondialdehyde levels and a significant decrease in fructosamine were observed in CPT and SPT compared to CON. A significant increase in cholesterol, aspartate amino transferase, and creatinine kinase and a significant decrease in albumin, potassium, calcium, superoxide dismutase, and catalase were observed in CPT only. Glucose was significantly decreased in SPT only. The highest area under the curve (AUC) was observed for fructosamine (89.7% and 87.5% for CPT and SPT, respectively) with the optimum cutoff point calculated on the basis of maximum sensitivity (SE) and specificity (SP) being 0.607mmol/L (SE: 89.3% and SP: 72.2%) and 1.005mmol/L (SE: 90.0% and SP: 75.3%) for CPT and SPT, respectively. At the cutoff limit of 0.607mmol/L and 1.005mmol/L, the odds ratio was 10.8 and 8.0 for CPT and SPT, respectively. A significant decrease in fructosamine and potassium and a significant increase in creatinine, lactate dehydrogenase, and malondialdehyde were observed in non-survivors compared to survivors. It was thus concluded that fructosamine was the best diagnostic indicator of both CPT and SPT followed by non-esterified fatty acid. Fructosamine, creatinine, potassium, lactate dehydrogenase, and malondialdehyde were the best prognostic indicators of PT.
Published Version
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