Sialogluciduria in Lysosomal Diseases: Quantitative and Qualitative Analysis of Urinary Low Molecular Sialoglucides from Patients with Mucopolysaccharidosis and with Mucolipidosis

Autor: Yasushi Nagai, Masai Koseki, Koichi Tsurumi, Jin-Yeh Wu
Rok vydání: 1978
Předmět:
Zdroj: The Tohoku Journal of Experimental Medicine. 124:351-360
ISSN: 1349-3329
0040-8727
DOI: 10.1620/tjem.124.351
Popis: Low molecular sialoglucides were isolated from the urines of normal human male and two patients with lysosomal disease (mucopolysaccharidosis type II and a new type of mucolipidosis) by charcoal adsorption method. Urinary sialoglucides were fractionated into two fractions (SG-1 and SG-2) by Sephadex G-25 gel filtration and considerable increase in excretion of SG-1 was observed in the patients with lysosomal diseases: two- to three-fold increase in mucopolysaccharidosis type II and seven- to eight-fold increase in mucolipidosis. SG-1 was further fractionated into 18 to 19 fractions by Sephadex G-50 gel filtration and ion exchange chromatography. Comparison of the amounts and the chemical compositions of these fractions suggested that the increase in SG-1 was dependent upon the increase in excretion of low molecular sialoglucides rich in mannose and N-acetylglucosamine.
Databáze: OpenAIRE