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@proceedings{1347531, author = {Pleskačová, Anna and Tomandl, Josef and Brejcha, Stanislav and Pácal, Lukáš and Kaňková, Kateřina}, booktitle = {Advances in Chromatography and Electrophoresis & Chiranal 2016}, keywords = {HPLC, uric acid, xanthine, hypoxanthine}, isbn = {978-80-244-4961-6}, title = {Development and validation of fast and simple HPLC for the determination of uric acid, xanthine and hypoxanthine in human plasma and serum}, year = {2016} }
TY - CONF ID - 1347531 AU - Pleskačová, Anna - Tomandl, Josef - Brejcha, Stanislav - Pácal, Lukáš - Kaňková, Kateřina PY - 2016 TI - Development and validation of fast and simple HPLC for the determination of uric acid, xanthine and hypoxanthine in human plasma and serum SN - 9788024449616 KW - HPLC, uric acid, xanthine, hypoxanthine N2 - Uric acid (UA) is a terminal metabolite of purine metabolism generated from xanthine (X) and hypoxanthine (HX) by the action of xanthine oxidoreductase (XOR) as a rate limiting enzyme. An increase of XOR activity has been reported under several pathophysiological conditions [1] and elevated UA and X levels are important risk factors of several diseases including those related to lifestyle [2]. On the other hand UA is considered as an important antioxidant in vivo [3]. UA is usually determined in serum using an enzyme uricase in clinical chemistry laboratory. There are several disadvantages of this commonly used enzyme method, firstly it does not provide data on X and HX levels reflecting the activity of XOR, secondly hyperxanthinemia may result in false positive results and thirdly uricase requires bivalent ions and thus this method is not appropriate for EDTA-plasma samples. The aim of this study was to optimize an HPLC determination of UA, X and HX convenient for both human EDTA-plasma and serum. ER -
PLESKAČOVÁ, Anna, Josef TOMANDL, Stanislav BREJCHA, Lukáš PÁCAL a Kateřina KAŇKOVÁ. Development and validation of fast and simple HPLC for the determination of uric acid, xanthine and hypoxanthine in human plasma and serum. In \textit{Advances in Chromatography and Electrophoresis \&{} Chiranal 2016}. 2016. ISBN~978-80-244-4961-6.
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