SEARCH Articles Figures Tables 1.3- Dipropyl-8- xanthine 8- Nitro-4- -xanthines 8-Substituted xanthines Activities of xanthine oxidase Adenine xanthine dehydrogenase Adenine, 8- , xanthine oxidase Adenine, 8- , xanthine oxidase inhibition Adenosine Xanthines Adenosine antagonists xanthines Adenosine xanthine-derived Aldehyde Oxidase and Xanthine Dehydrogenase Allopurinol, Xanthine Oxidase, and Hyperuremic States Allopurinol. xanthine oxidase Alloxanthine, complex with xanthine Alloxanthine, complex with xanthine oxidase Asthma methyl xanthines Autoxidation xanthine oxidase Biotransformation xanthine oxidase Bovine milk xanthine oxidase Cardiovascular system xanthine effects Crypto xanthin Cytochrome reaction with xanthine oxidase Dehydrogenases xanthine dehydrogenase Dimethyl methyl xanthine Dimethyl-xanthin Dipyridamole Xanthines Direct electron transfer of protein xanthine oxidase Drug-enzyme interactions xanthine oxidase Electron paramagnetic resonance xanthine oxidase Endothelial xanthine oxidoreductase Enzyme xanthine oxidoreductase Enzymes xanthine dehydrogenase Enzymes xanthine oxidase Flavonoids xanthine oxidase inhibition Flavonoids, xanthines and terpenoids Fused xanthines Guanines, xanthine oxidase inhibition Homogenization xanthine oxidase Hypoxanthine-xanthine oxidase Inhibition of xanthine oxidase Kidney xanthine effects Lithium xanthines Liver xanthine dehydrogenase Liver xanthine oxidase Mammary gland, xanthine oxidase Mechanism xanthine oxidation Methyl xanthine analysis Methylated xanthines Milk xanthine oxidase Molybdenum enzymes xanthine oxidase Molybdenum hydroxylase xanthine dehydrogenase Molybdenum hydroxylase xanthine oxidase Molybdoenzymes xanthine oxidase family Molybdopterin centers, xanthine oxidase Mononuclear structures xanthine oxidase family Of xanthine derivatives Oxidase , aerobic xanthine Oxidases xanthine oxidase Pulse radiolysis xanthine oxidase Purines xanthine oxidase Purines xanthines Pyranopterin dithiolenes xanthine oxidase family Pyridine xanthine derivatives Reductive enzymes xanthine oxidase Renal xanthine calculi Serum xanthine oxidase Signals from Reactions of Alcohols with Xanthine Oxidases and Dehydrogenases Skeletal muscle xanthine effects Smooth muscle xanthine effects Soybean xanthine oxidase Subject xanthine oxidase Superoxide xanthine oxidase The Xanthine Oxidase Cycle The Xanthine Oxidase Family Theaflavins xanthine oxidase inhibition Uncoupling of the xanthine dehydrogenase system Uracils xanthines Uracils, 1-alkylation xanthines Uric acid 414 Xanthine Uric acid formation from xanthine Uric acid, from xanthine Uric acid, from xanthine structure Vitamins Xanthine Xanthates, xanthines Xanthic oxide, xanthine Xanthin Xanthin Xanthin oxidase Xanthine (2,6-Dihydroxypurine Xanthine /methylxanthines Xanthine /methylxanthines actions Xanthine /methylxanthines asthma Xanthine /methylxanthines diuretic Xanthine 1,3,7-trimethyl Xanthine 1-methyl Xanthine Imino Xanthine Oxidase Family of Enzymes Xanthine Oxidoreductase (XOR) Xanthine Synthesis Xanthine aldehyde oxidase Xanthine alkaloids Xanthine alkaloids caffeine Xanthine base Xanthine breakdown Xanthine bronchodilators Xanthine catabolism Xanthine dehydrogenase Xanthine dehydrogenase , electron Xanthine dehydrogenase , electron transfer Xanthine dehydrogenase localization Xanthine dehydrogenase molybdenum Xanthine dehydrogenase properties Xanthine dehydrogenases Xanthine dehydrogenases molybdenum Xanthine derivatives Xanthine derivatives Theobromine Theophylline Xanthine dimethyl Xanthine diuretics Xanthine dyes Xanthine formation from guanine Xanthine formation from hypoxanthine Xanthine formation from purines Xanthine formula Xanthine incorporation into nucleic acid purines Xanthine inhibitors Xanthine molybdenumm (Vol Xanthine monophosphate Xanthine oxidase Xanthine oxidase (EC Xanthine oxidase , inhibitory effects Xanthine oxidase Rapid signals Xanthine oxidase Slow signals Xanthine oxidase Very Rapid signal Xanthine oxidase action Xanthine oxidase activation Xanthine oxidase active site structure Xanthine oxidase activity Xanthine oxidase activity estimation Xanthine oxidase allopurinol therapy Xanthine oxidase analogue metabolism Xanthine oxidase assay Xanthine oxidase coenzyme Xanthine oxidase couplings Xanthine oxidase cycle Xanthine oxidase deficiency Xanthine oxidase desulfo Xanthine oxidase distribution Xanthine oxidase electron acceptor specificities Xanthine oxidase electron transfer Xanthine oxidase families Xanthine oxidase families models Xanthine oxidase families molybdenum hydroxylase Xanthine oxidase families molybdenum hydroxylases Xanthine oxidase fluorescence Xanthine oxidase function Xanthine oxidase inhibition Xanthine oxidase inhibition effect Xanthine oxidase inhibitors Xanthine oxidase interaction with Xanthine oxidase intramolecular electron transfer Xanthine oxidase iron-sulfur centers Xanthine oxidase leukocyte,human Xanthine oxidase mammalian cells Xanthine oxidase mechanism Xanthine oxidase molecular weight Xanthine oxidase molybdenum Xanthine oxidase molybdenum center Xanthine oxidase molybdenum cofactor Xanthine oxidase molybdenum complex center Xanthine oxidase oxidized flavor Xanthine oxidase pathway Xanthine oxidase reaction Xanthine oxidase reaction mechanism Xanthine oxidase regulation Xanthine oxidase structure Xanthine oxidase studies with Xanthine oxidase substrate activity Xanthine oxidase substrate binding Xanthine oxidase substrate specificities Xanthine oxidase synthesis Xanthine oxidase, activation volume Xanthine oxidase, cytochrome Xanthine oxidase, substrates Xanthine oxidase/hypoxanthine system Xanthine oxidoreductase Xanthine oxidoreductase family Xanthine oxidoreductase hydroxylation reactions Xanthine phosphoribosyltransferase Xanthine porphyrins Xanthine properties Xanthine ribosyl Xanthine ribotide Xanthine superoxide radical anion Xanthine theophylline Xanthine transfer Xanthine uric acid and Xanthine urinary excretion Xanthine, 1-, 3-, 7- and 9-methyl-, spectra Xanthylic acid Xanthine, biological oxidation Xanthine, degradation Xanthine, mesoionic Xanthine, nitration Xanthine, oxidation Xanthine, purine degradation Xanthine, structure Xanthine, tautomerism Xanthine-7-ribosides Xanthine-8-carboxylic acid Xanthine-guanine phosphoribosyltransferase Xanthine-imprinted polymer Xanthines (European Pharmacopoeia Xanthines Beta-2 agonists Xanthines agonists) Xanthines analysis Xanthines fluoride Xanthines naturally-occurring Xanthines, 7-amino-, oxidation Xanthines, 7-hydroxy Xanthines, 7-hydroxy-, syntheses Xanthines, 8-aryl Xanthines, 8-phenyl Xanthines, 9-amino Xanthines, arylation Xanthins Xanthins Xenobiotic metabolism xanthine oxidase