Unaccustomed eccentric exercise is accompanied by muscle damage and impaired glucose uptake and glycogen synthesis during subsequent recovery. Recently, it was shown that the role and regulation of glycogen in skeletal muscle are dependent on its subcellular localization, and that glycogen synthesis, as described by the product of glycogen particle size and number, is dependent on the time cour...

Danon disease is a rare X-linked dominant lysosomal glycogen storage disease that can lead to severe ventricular hypertrophy and heart failure. We report a case of Danon disease with cardiac involvement evaluated with cardiovascular magnetic resonance, including late gadolinium enhancement and perfusion studies.

Glycogen storage diseases are pathologies that affect the glycogen metabolism. Several types were identified. The most common one is glycogen storage disease type 1 (GSD I) also called Von Giereke disease. It results from deficiency of the enzyme glucose-6-phosphatase, and it is observed in one of 100,000 births. Clinically it includes hepatomegaly that give an appearance of abdominal distensio...

The clinical spectrum is continuous and broad and three major forms are recognised: infantile, juvenile and adult-onset. [1] In the infantile form, accumulation of glycogen in cardiac muscle leads to cardiac failure. Accumulation may also occur in the liver, which results in hepatomegaly and elevation of hepatic enzymes. Glycogen accumulation in muscle and peripheral nerves causes hypotonia and...

An adult patient with lysosomal acid alpha-glucosidase deficiency was fully investigated, and then placed on various forms of therapy with favourable response to a high protein, low carbohydrate diet. The rationale for the employment of this therapy, the problem of acid maltase deficiency and the relationship to weakness and glycogenosome formation with accumulation or otherwise of glycogen wit...