Xanthinuria: Difference between revisions
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==Causes== |
==Causes== |
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Type I xanthinuria can be caused by a deficiency of [[xanthine oxidase]], which is an enzyme necessary for converting [[xanthine]] to [[uric acid]].<ref name="pmid9153281">{{cite journal |vauthors=Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O |title=Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria |journal=[[J. Clin. Invest.]] |volume=99 |issue=10 |pages=2391–7 |year=1997 |pmid=9153281 |pmc=508078 |doi=10.1172/JCI119421}}</ref> Type II xanthinuria and [[molybdenum cofactor deficiency]] lack one or two other enzyme activities in addition to xanthine oxidase.<ref>{{cite journal | author = Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O | title = Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria | journal = J Clin Invest | volume = 99 | issue = 10| pages = 2391–7 | pmid = 9153281 | doi = 10.1172/JCI119421 | pmc = 508078 | date = May 1997 }}</ref> |
Type I xanthinuria can be caused by a deficiency of [[xanthine oxidase]], which is an enzyme necessary for converting [[xanthine]] to [[uric acid]].<ref name="pmid9153281">{{cite journal |vauthors=Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O |title=Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria |journal=[[J. Clin. Invest.]] |volume=99 |issue=10 |pages=2391–7 |year=1997 |pmid=9153281 |pmc=508078 |doi=10.1172/JCI119421}}</ref> Type II xanthinuria and [[molybdenum cofactor deficiency]] lack one or two other enzyme activities in addition to xanthine oxidase.<ref>{{cite journal | author = Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O | title = Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria | journal = J Clin Invest | volume = 99 | issue = 10| pages = 2391–7 | pmid = 9153281 | doi = 10.1172/JCI119421 | pmc = 508078 | date = May 1997 }}</ref> |
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==Diagnosis== |
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==Treatment== |
==Treatment== |
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Revision as of 20:00, 30 October 2024
| Xanthinuria | |
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| Xanthine | |
| Specialty | Endocrinology  |
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.[1]
Presentation
Affected people have unusually high concentrations of xanthine in their blood and urine, which can lead to health problems such as renal failure and xanthine kidney stones, one of the rarest types of kidney stones.[citation needed]
Causes
Type I xanthinuria can be caused by a deficiency of xanthine oxidase, which is an enzyme necessary for converting xanthine to uric acid.[2] Type II xanthinuria and molybdenum cofactor deficiency lack one or two other enzyme activities in addition to xanthine oxidase.[3]
Diagnosis
![[icon]](/enwiki/wiki/File:Wiki_letter_w_cropped.svg){kind=small} | This section is empty. You can help by adding to it. |
Treatment
There is no specific treatment beyond maintaining a high fluid intake and avoiding foods that are high in purine.[citation needed]
References
- ^ Dent CE, Philpot GR (1954). "Xanthinuria, an inborn error (or deviation) of metabolism". Lancet. 266 (6804): 182–5. doi:10.1016/S0140-6736(54)91257-X. PMID 13118765.
- ^ Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O (1997). "Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria". J. Clin. Invest. 99 (10): 2391–7. doi:10.1172/JCI119421. PMC 508078. PMID 9153281.
- ^ Ichida K, Amaya Y, Kamatani N, Nishino T, Hosoya T, Sakai O (May 1997). "Identification of two mutations in human xanthine dehydrogenase gene responsible for classical type I xanthinuria". J Clin Invest. 99 (10): 2391–7. doi:10.1172/JCI119421. PMC 508078. PMID 9153281.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
- Kojima T.; Nishina T.; Kitamura M.; Hosoya T.; Nishioka K. (1984). "Biochemical studies on the purine metabolism of four cases with hereditary xanthinuria". Clin Chim Acta. 137 (2): 189–98. doi:10.1016/0009-8981(84)90179-7. PMID 6423323.
- Hille R. (2006). "Structure and Function of Xanthine Oxidoreductase". European Journal of Inorganic Chemistry. 2006 (10): 1905–2095. doi:10.1002/ejic.200600087.
External links
- Xanthinuria at NIH's Office of Rare Diseases