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Abstract
Defects of neuraminidase activities towards sialyloigosaccharides in fibroblasts and
leucocytes and enhanced excretion of sialyloligosaccharides in urine were shown in
patients with adult type sialidosis with partial deficiency of β-galactosidase and
cherry red spot-myoclonus syndrome. No differences in their neuraminidase residual
levels and urinary excretion patterns on thin-layer chromatography were found between
these two disorders. In mucolipidosis II and III patients, the neuraminidase activities
towards sialyloligosaccharides were almost normal in leucocytes, although decreased
in fibroblasts. The discrepancy of neuraminidase activities towards 2 →3 and 2 →6
sialyloligosaccharide isomers was not noticed in all cases.
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Article info
Publication history
Accepted:
October 7,
1981
Received:
September 24,
1981
Footnotes
☆This work was supported by a grant from the Ministry of Education, Science and Culture of Japan.
Identification
Copyright
© 1982 Published by Elsevier Inc.