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Xanthine oxidoreductase and its inhibitors: relevance for gout. | LitMetric

Xanthine oxidoreductase and its inhibitors: relevance for gout.

Clin Sci (Lond)

Department of Clinical Pharmacology & Toxicology, St Vincent's Hospital, Darlinghurst 2010, Sydney, Australia.

Published: December 2016

AI Article Synopsis

Article Abstract

Xanthine oxidoreductase (XOR) is the rate-limiting enzyme in purine catabolism and converts hypoxanthine to xanthine, and xanthine into uric acid. When concentrations of uric acid exceed its biochemical saturation point, crystals of uric acid, in the form of monosodium urate, emerge and can predispose an individual to gout, the commonest form of inflammatory arthritis in men aged over 40 years. XOR inhibitors are primarily used in the treatment of gout, reducing the formation of uric acid and thereby, preventing the formation of monosodium urate crystals. Allopurinol is established as first-line therapy for gout; a newer alternative, febuxostat, is used in patients unable to tolerate allopurinol. This review provides an overview of gout, a detailed analysis of the structure and function of XOR, discussion on the pharmacokinetics and pharmacodynamics of XOR inhibitors-allopurinol and febuxostat, and the relevance of XOR in common comorbidities of gout.

Download full-text PDF

Source
http://dx.doi.org/10.1042/CS20160010DOI Listing

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