Effects of allopurinol on uric acid concentrations, xanthine oxidoreductase activity and oxidative stress in broiler chickens
| Autor: | María Dolores Carro, William J. Radke, Elizabeth Falkenstein, Hillar Klandorf |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Purine
Blood Glucose Male medicine.medical_specialty Xanthine Oxidase Physiology Xanthine Dehydrogenase Health Toxicology and Mutagenesis Allopurinol Biology Toxicology medicine.disease_cause Biochemistry Xanthine chemistry.chemical_compound Allantoin Internal medicine medicine Animals Enzyme Inhibitors Pancreas Hypoxanthine Dose-Response Relationship Drug Body Weight Broiler Age Factors Cell Biology General Medicine Uric Acid Intestines Oxidative Stress Endocrinology chemistry Liver Uric acid Female Chickens Oxidative stress medicine.drug |
| Zdroj: | Comparative biochemistry and physiology. Toxicologypharmacology : CBP. 151(1) |
| ISSN: | 1532-0456 |
| Popis: | The purpose of this study was to determine the effects of allopurinol (AL) on xanthine oxidoreductase (XOR) activity and uric acid (UA) levels in chickens. Thirty 5-week-old broilers were divided into three groups and fed 0 (control), 25 (AL25) or 50 (AL50) mg AL per kg of body mass for 5 weeks. Chicks were weighed twice weekly and leukocyte oxidative activity (LOA) and plasma purine levels were determined weekly in five birds per group. Chicks were sacrificed after 2 or 5 weeks, and samples from tissues were taken for analysis of XOR activity. Plasma UA concentrations were lower (P0.001) and xanthine and hypoxanthine concentrations were greater (P0.001) in AL25 and AL50 birds compared to controls, whereas no differences (P=0.904) were detected in allantoin concentrations. By week 5, body mass was reduced (P0.001) to 84.0 and 65.1% of that in controls for AL25 and AL50 broilers, respectively, and LOA was 4.1 times greater (P0.05) in AL25 compared to control birds. Liver XOR activity was increased by 1.1 and 1.2 times in AL25 and AL50 birds, but there was no change (P0.05) in XOR activity in the pancreas and intestine. These results suggest that AL effect on XOR activity is tissue dependent. |
| Databáze: | OpenAIRE |
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