Pompe disease is associated with an absence or reductionof functional GAA which results in extensive glycogen accu-mulation in skeletal muscle, visceral organs and the centralnervous system (CNS) (DeRuisseau et al., 2009; Raben et al., 2002;Sidman et al., 2008). The disease occurs in approximately 1 per40,000 births, and based on appearance of symptoms, patientsare typically classified as either early (infantile) or late-onset