Glycogen storage diseases Flashcards
von gierke’s deficient enzyme
Glucose 6 phosphatase
inheritance of glycogen storage disease
all autosomal recessive
deficient enzyme in pompe’s disease
lysosomal a-1,4-glucosidase
acid maltase
deficient enzyme in cori’s disease
debranching enzyme
alpha 1-6 glucosidase
deficient enzyme in mcArdle’s disease
skeletal muscle glycogen phosphorylase
type I glycogen storage
von gierke’s
type II glycogen storage
Pompe’s
Type III glycogen storage
Cori’s
Type V glycogen storage
McArdle’s
Von gierke presentation
severe hypoglycemia
increased glycogen in liver
increased blood lactate
hepatomegaly
Pompe presentation
cardiomegaly, hepatomegaly, hypotonic
normal glucose levels
Cori’s presentation
Like von gierke, but normal blood lactate
- -hypoglycemia
- -stunted growth
- -hepatomegaly
McArdle’s presentation
Myoglobinuria and cramping with exercise
Increased muscle glycogen in muscles