The influence of age on the xylose absorption test.
Xylose absorption tests were performed on patients unselected except to exclude gastrointestinal or renal disease. The proportion of xylose excreted decreases with increasing age. Intravenous xylose tests suggest that this is due to a deterioration in renal function rather than to a reduction in intestinal absorption.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000375:Aging; D002648:Child; D005767:Gastrointestinal Diseases; D006801:Humans; D007275:Injections, Intravenous; D007408:Intestinal Absorption; D007668:Kidney / Q000502:physiology; D007674:Kidney Diseases; D008286:Malabsorption Syndromes / Q000175:diagnosis; D008875:Middle Aged; D014994:Xylose / Q000008:administration & dosage / Q000378:metabolism* / Q000652:urine
D014994:Xylose