xanthinuria

Type: Term Pronunciation: zan′thi-nyū′rē-ă Definitions: 1. Excretion of abnormally large amounts of xanthine in the urine. 2. A disorder [MIM*278300], characterized by urinary excretion of xanthine in place of uric acid, hypouricemia, and occasionally the formation of renal xanthine stones. There are two types: type I is ...
Found on http://www.medilexicon.com/medicaldictionary.php?t=100113

Xanthinuria

Xanthinuria: An inherited metabolic disorder in which there is deficiency of an enzyme needed to process xanthine, a substance found in caffeine, theobromine, theophylline, and related substances. Unchecked, xanthinuria can lead to kidney stone formation and urinary tract disease (due to xanthine stones) and to muscle disease (due to deposits of xa...
Found on http://www.medterms.com/script/main/art.asp?articlekey=11828

xanthinuria

1. Excretion of abnormally large amounts of xanthine in the urine. ... 2. A disorder resulting from defective synthesis of xanthine oxidase, characterised by urinary excretion of xanthine in place of uric acid, hypouricaemia, and, in some cases, the formation of xanthine stones; autosomal recessive inheritance. ... Synonym: xanthiuria, xanthuria. ....
Found on http://www.encyclo.co.uk/local/20973

xanthinuria

(zan″thin-u´re-ә) excess of xanthine in the urine, due to a hereditary disorder of purine metabolism in which there is a deficiency of the enzyme xanthine oxidase.
Found on http://www.encyclo.co.uk/local/21001

xanthinuria

rare inherited disorder of purine metabolism that results from a deficiency in the enzyme xanthine oxidase. Normally this enzyme breaks down the ...
Found on http://www.britannica.com/eb/a-z/x/1

Xanthinuria

Xanthinuria, also known as xanthine oxidase deficiency, is a rare genetic disorder causing the accumulation of xanthine. It is caused by a deficiency of the enzyme xanthine oxidase. It was first formally characterized in 1954. ==Causes== Type I xanthinuria can be caused by a deficiency of xanthine dehydrogenase, which is an enzyme necessary for co...
Found on http://en.wikipedia.org/wiki/Xanthinuria
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