xanthine


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xan·thine

 (zăn′thēn′, -thĭn)
n.
1. A yellowish-white, crystalline purine base, C5H4N4O2, that is a precursor of uric acid and is found in blood, urine, muscle tissue, and certain plants.
2. Any of several derivatives of this compound.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

xanthine

(ˈzænθiːn; -θaɪn)
n
1. (Elements & Compounds) a crystalline compound related in structure to uric acid and found in urine, blood, certain plants, and certain animal tissues. Formula: C5H4N4O2
2. (Elements & Compounds) any substituted derivative of xanthine, esp one of the three pharmacologically active methylated xanthines, caffeine, theophylline, or theobromine, which act as stimulants and diuretics
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

xan•thine

(ˈzæn θin, -θɪn)

n.
1. a crystalline, nitrogenous compound, C5H4N4O2, related to uric acid, occurring in urine, blood, and certain animal and vegetable tissues.
2. any derivative of this compound.
[1855–60; < French; see xantho-, -ine2]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.xanthine - crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
organic compound - any compound of carbon and another element or a radical
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations
xantin
Xanthin
xanthine

xan·thine

n. xantina, grupo de substancias tales como la cafeína estimulantes del sistema nervioso central y del corazón.
English-Spanish Medical Dictionary © Farlex 2012
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References in periodicals archive ?
In patients in whom allopurinol toxicity occurs, options include other xanthine oxidase inhibitors (febuxostat), a uricosuric agent (probenecid), or allopurinol desensitisation (only in cases of mild rash).
Gout - an overview
Xanthine oxidase (EC 1.2.3.2) activity was measured spectrophotometrically by the formation of uric acid from xanthine through the increase in absorbance at 293 nm (18).
Relationship of cellular oxidant and antioxidant status with disease activity in patients with rheumatoid arthritis / Omatoid artrit hastalarinda hucresel oksidan ve antioksidan statu ve hastalik aktivitesi ile iliskisi
Anti-radical activity was determined spectrophotometrically (Robak & Gryglewski, 1988) by monitoring the effect of CCRE on superoxide anion radicals (which are able to reduce cytochrome c) produced by xanthine/ xanthine oxidase (XO) system.
Propriedades dos radicais antioxidantes extraidos de Carthamus caeruleus L nativos da flora da Argelia
Effects of allopurinol, a xanthine oxidase inhibitor, on renal injury in hypercholesterolemia-induced hypertensive rats.
The beneficial effects of allopurinol in cardiology practice: decrease in uric acid and vascular oxidative stress/the effects of lowering uric acid levels using allopurinol on markers of metabolic syndrome in end-stage renal disease patients: a pilot study/Allopurinolun kardiyoloji pratigindeki faydali etkileri: urik asitte ve vaskuler oksidatif streste azalma/urik asit seviyelerinin allopurinol ile azaltilmasinin son donem..
Treating it like its very own substrate xanthine, the
Fatal Attraction
The xanthine group has a number of general physiological effects in humans, including central nervous system stimulation, Cardiac muscle stimulation, diuresis, bronchial, uterine, and vascular smooth muscle relaxation, peripheral and coronary vasodilation, and cerebral vasoconstriction.
Xanthines: the side door bronchodilators
Xanthine oxidase inhibitors may improve myocardial work efficiency by sensitising cardiac muscle cells to calcium ions, which are a key determinant of cardiac muscle function.
Cardiome obtains additional oxypurinol patent
Xanthine oxidase is an enzyme associated with the fat globule membrane in cow's milk.
Research into milk's inherent antimicrobial system
Chemically, each table contains the active ingredient, Pentoxy-fylline De-Methyl - Xanthine, which is first cousin to caffeine, which is chemically Tri-Methyl Xanthine.
Coffee and cold feet
Febuxostat (FB) is a xanthine oxidase inhibitor that has been used to treat chronic gout.
Febuxostat Mitigates Genotoxicity Induced by Ionizing Radiation in Human Normal Lymphocytes

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