a study of the lysosomal hydrolases bete-galactosidase , beta-glucuronidase , n-acetyl-beta-d-glucosaminidase , and arylsulphatases a and b has been carried out on fibroblasts cultured from seven patients with cystinosis and eight control subjects . beta-galactosidase activity was found to be consistently lower in cells derived from cystinotics , while the other enzymes studied showed no significant differences between normals and cystinotics .
C0016030
fibroblasts
C0007634
cells