xanthine
Noun
Meaning
crystalline oxidation product of the metabolism of nucleoproteins; precursor of uric acid; found in many organs and in urine
Source: WordNetSynonyms
Hypernyms
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Examples
A 24-hour urine excretion of more than 800 mg, which indicates overproduction, is an indication for a xanthine oxidase inhibitor.
Guanine is deaminated to xanthine which in turn is oxidized to uric acid.
Hypoxanthine is oxidized to xanthine and finally to uric acid.
It is an analog of hypoxanthine that is hydroxylated by xanthine oxidoreductase at the 2-position to give oxipurinol.
The activity of xanthine oxidase is directly proportional to the amount of molybdenum in the body.