title: The excretion of glycosaminoglycans in the urine of calcium-oxalate-stone patients and healthy persons.
abstract: A method for the routine determination of glycosaminoglycans (GAGs) in urine has been optimized and is described here in detail. In 24-hour urine, males excrete significantly more GAGs than females. GAG excretion increases with advancing age. No significant difference exists between GAG excretion in healthy persons and in Ca-oxalate-stone patients. GAG excretion is diet-dependent and declines under conditions of balanced standardized diet. Evidence was obtained to show that GAG excretion follows a circadian rhythm with maximum during the day and minimum during the night. Both stone patients and healthy persons with hyperuricosuria show an increased GAG excretion.
mesh_terms: D000328:Adult; D000367:Age Factors; D002129:Calcium Oxalate / Q000652:urine*; D002940:Circadian Rhythm; D005247:Feeding Behavior; D005260:Female; D006025:Glycosaminoglycans / Q000652:urine*; D006801:Humans; D007669:Kidney Calculi / Q000652:urine*; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D014527:Uric Acid / Q000652:urine
chemical_list: D006025:Glycosaminoglycans; D002129:Calcium Oxalate; D014527:Uric Acid