D-Xylose

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D-Xylose
2D structure for D-Xylose
Chemical Name	(3R,4R,5R)-oxane-2,3,4,5-tetrol
Chemical Formula	C₅H₁₀O₅
CAS Number	58-86-6
Chemical Information	HMDB00098
Biochemical Taxonomy	Not Available
Functional Taxonomy	Not Available
Nutritional Taxonomy	Carbohydrates
Metabolic Pathways	Fructose and Mannose Metabolism Galactose Metabolism Glycerolipid Metabolism Pentose and Glucuronate Interconversions Pyruvate Metabolism
Biofluid Location	Blood Urine
Tissue Location	Small Intestine Erythrocyte
Normal Biofluid Concentrations	Blood: 1460 - 2360 uM Blood: 2930 - 3630 uM Urine: 26.7 +/- 23.7 umol/mmol creatinine
Normal Tissue Concentrations	Not Available
Diseases / Conditions Related to Nutrition	HIV, diarrhea - D-Xylose absorption testing: 1 hour HIV, diarrhea - D-Xylose absorption testing: 3 hours Lung Cancer Renal Insufficiency - D-Xylose absorption testing: 3 hours
Other (Monogenic Disorders)	Ehlers-danlos syndrome, progeroid form OMIM: 130070 Ribose 5-phosphate isomerase deficiency OMIM: 608611
Abnormal Biofluid Concentrations	Blood (HIV, diarrhea - D-Xylose absorption testing: 1 hour): 270 - 100 uM Blood (HIV, diarrhea - D-Xylose absorption testing: 3 hours): 200 - 930 uM Blood (Renal Insufficiency - D-Xylose absorption testing: 3 hours): 1700 - 3800 uM Urine (Lung Cancer): 3.0 (0.0-17.0) umol/mmol creatinine
Abnormal Tissue Concentrations	Not Available
Physiological Processes	Not Available

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Introduction

guidelines
Important intermediate in the Pentose and glucuronate interconversions and Nucleotide sugars metabolism. (KEGG) It is said to be one of eight sugars which are essential for human nutrition, the others being galactose, glucose, mannose, N-acetylglucosamine, N-acetylgalactosamine, fucose, and sialic acid. (wikipedia)