inborn error of carbohydrate metabolism, characterized by the excessive urinary excretion of the sugar xylitol. It is caused by a defect in the enzyme xylitol dehydrogenase, by which xylitol is normally metabolized. No disabilities are incurred, and no dietary or other measures are necessary. Reducing properties of the urine of affected individuals may lead to confusion with, and unnecessary treatment for, diabetes mellitus, which is not related to pentosuria. Pentosuria has been observed almost exclusively in persons of Jewish descent.

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Universalium. 2010.

Look at other dictionaries:

  • pentosuria — f. urol. Presencia de pentosas en la orina. Medical Dictionary. 2011. pentosuria Trastorno poco frecuente que se caracteriza por …   Diccionario médico

  • Pentosuria — Infobox Disease Name = PAGENAME Caption = Xylulose DiseasesDB = 9816 ICD10 = ICD10|E|74|8|e|70 ICD9 = ICD9|271.8 ICDO = OMIM = 260800 MedlinePlus = eMedicineSubj = eMedicineTopic = MeshID = Pentosuria is a condition where xylulose (a pentose)… …   Wikipedia

  • pentosuria — noun the presence of pentose sugars in the urine; especially the presence of abnormally high levels of xylulose in the urine …   Wiktionary

  • pentosuria — The excretion of one or more pentoses in elevated amounts in the urine. alimentary p. the urinary excretion of l arabinose and l xylose, as the result of the excessive ingestion of fruits containing these pentoses. essential p. [MIM*260800] a… …   Medical dictionary

  • pentosuria — pen·tos·uria …   English syllables

  • pentosuria — n. an inborn defect of sugar metabolism causing abnormal excretion of pentose in the urine. There are no serious ill effects …   The new mediacal dictionary

  • pentosuria — ˌpentəˈs(h)u̇rēə, təsˈyu̇ noun ( s) Etymology: New Latin, from International Scientific Vocabulary pentose + New Latin uria : the excretion of pentoses in the urine …   Useful english dictionary

  • Пентозурия (Pentosuria) — врожденный дефект метаболизма сахара в организме, характеризующийся аномальным выведением с мочой пентозы. Пентозурия обычно не причиняет серьезного вреда здоровью человека. Источник: Медицинский словарь …   Медицинские термины

  • alimentary pentosuria — urinary excretion of pentoses, probably xylose and arabinose, as a normal consequence of excessive ingestion of fruits such as cherries, plums, and grapes, or their juices …   Medical dictionary

  • essential pentosuria — a benign autosomal recessive deficiency of L xylulose reductase activity, due to mutation in the DCXR gene (locus: 17q25.3), which encodes it, resulting in urinary excretion of high levels of the pentose L xylulose …   Medical dictionary

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