No glycogen was detected in cardiomyocytes by PAS staining. In contrast, the liver, which had been subjected to an identical fixing procedure, contained a normal amount of glycogen. The mutation ...

Panel D (with staining for myosin ATPase at pH 4. ... shown in Panels A (hematoxylin and eosin), B (periodic acid–Schiff [PAS] reagent for glycogen), D, and E, is characterized by myocyte ...