| GLYCOGEN STORAGE DISEASE TYPE II. ADULT ONSET | |
| GSD2; GLYCOGEN STORAGE DISEASE II | |
|
232300
OMIM = Online Mendelian Inheritance of Men | |
|
420429 | |
| Lysosomal alpha-glucosidase | |
| 3.2.1.3 | |
| 17q25.3 |
|
| E74.0 | |
| rare (1:100000 ) autosomal recessive mutation in the GAA gene 1) infantile onset: cardiomegaly, progressive weakness, macroglossia 2) juvenile onset: (cardiac involvement), slower progression 3) adult onset: slowly progressive myopathy | |
| Laboratory findings | alpha-1,4-Glucosidase dec (muscle) alpha-Glucosidase dec (fibroblasts) alpha-Glucosidase dec (muscle) |
| Symptoms | dyspnea fatigue, severe or unusual headache (severe, recurrent or occipital, migraine) onset, adulthood progressive muscle defect respiratory insufficiency |