Glycosyl-glucose concentration, role

From their discovery, the glycosyl ureides have been of interest from a biochemical standpoint. The fact that D-glucose and urea occur in human blood in approximately equimolar concentrations (about 0.006 M) has led to speculation and to some investigation of the metabolic role of these compounds. Mayer, in a series of metabolic experiments with dogs, attempted to determine whether 1-D-glucosylurea is a natural constituent of normal or of pathological blood or urine. 

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