Alpha-glucosidase in cystic fibrosis.

Studies are presented on the serum level of several acid glycosidases in 
normal and cystic fibrosis subjects. Levels of alpha-glucosidase found in serum 
from CF patients were significantly higher than from normals and heterozygotes. 
The increase in alpha-glucosidase was directly related to the clinical gravity 
of the disease. Levels of all other glycosidases studied in CF 
patients were in the normal range. 