Sialuria, a Defect in Sialic Acid Metabolism

9 sialidase. Intermediates in boxes are elevated in sialuria intermediates in broken 

Increased NeuSAc excretion in other diseases (e.g. Salla disease) has been reported (Renlund et al 1979), but the levels of Neu5Ac were not as high as in the sialuria patient. 

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