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Elevated uric acid correlates with wound severity

By Melissa Laura Fernandez, Zee Upton, Helen E. Edwards, Kathleen J. Finlayson and Gary K. Shooter


Chronic venous leg ulcers are a major health issue and represent an often overlooked area of biomedical research.\ud Nevertheless, it is becoming increasingly evident that new approaches to enhance healing outcomes may arise\ud through better understanding the processes involved in the formation of chronic wounds. We have for the first\ud time shown that the terminal purine catabolite uric acid (UA) is elevated in wound fluid (WF) from chronic venous\ud leg ulcers with relative concentrations correlating with wound chronicity. We have also shown a corresponding\ud depletion in UA precursors, including adenosine, with increased wound severity. Further, we have shown that\ud xanthine oxidase, the only enzyme in humans that catalyses the production of UA in conjunction with a burst of\ud free radicals, is active in chronic WF. Taken together, this provides compelling evidence that xanthine oxidase may\ud play a critical role in the formation of chronic wounds by prolonging the inflammatory process

Topics: 110000 MEDICAL AND HEALTH SCIENCES, chronic venous leg ulcers, purines, uric acid, wound fluid and xanthine oxidase
Publisher: Wiley-Blackwell Publishing Ltd.
Year: 2012
DOI identifier: 10.1111/j.1742-481X.2011.00870.x
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