Pentosuria is an autosomal recessive inherited condition to be inborn errors of metabolism characterized by high levels of the pentose sugar L-xylulose in blood and urine. The condition is completely clinically benign. Mutations have been identified in the DCXR gene encoding L-xylulose reductase, which are predicted to lead to loss of enzyme activity. In pentosuria, failure to convert L-xylulose to xylitol leads to accumulation of L-xylulose.
Category
Inherited metabolic disorder
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Inborn errors of metabolism
5C51 Inborn errors of carbohydrate metabolism
H01065 Pentosuria
