Abstract Title:

Orange juice and hesperetin supplementation to hyperuricemic rats alter oxidative stress markers and xanthine oxidoreductase activity.

Abstract Source:

J Clin Biochem Nutr. 2009 Nov;45(3):285-91. Epub 2009 Oct 28. PMID: 19902018

Abstract Author(s):

Fatemeh Haidari, Seid Ali Keshavarz, Mohammad Reza Rashidi, Majid Mohammad Shahi


Our objective was to examine the effect of orange juice and hesperetin on serum total antioxidant capacity (TAC), lipid peroxidation (MDA), uric acid and hepatic xanthine oxidase (XO) and xanthine dehydrogenase (XDH) activity in hyperuricemic rats. Experimentally hyperuricemia in rats was induced by intraperitoneal injection of potassium oxonate (250 mg/kg). Orange juice (5 ml/kg) and hesperetin (5 mg/kg) was given by oral gavage to rats for 2 weeks and biochemical data was measured. Data showed that orange juice supplementation increased serum TAC and decreased MDA concentration (p</=0.05). Orange juice also inhibited hepatic XO and XDH activity and decreased serum uric acid levels. Hesperetin, which is the main flavanone constituent in orange juice, also exhibited antioxidative and antihyperuricemic properties, but its effect was weaker than that of orange juice. Although the hypouricemic effect of allopurinol (5 mg/kg), as a positive control, was much higher than that of orange juice and hesperetin, it could not significantly change biomarkers of oxidative stress. These features of orange juice and hesperetin make them an attractive candidate for the prophylactic treatment of hyperuricaemia, particularly if these compounds are to be taken on a long-term basis.


Study Type : Animal Study

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