Glycogen Storage Disease Due to Acid Maltase Deficiency, Late-Onset, is also known as alpha-1,4-glucosidase acid deficiency, late-onset. An important gene associated with Glycogen Storage Disease Due to Acid Maltase Deficiency, Late-Onset is GAA (Alpha Glucosidase). The drugs Miglustat and Glycoside Hydrolase Inhibitors have been mentioned in the context of this disorder. Affiliated tissues include skeletal muscle and tongue.