Glycogen storage disease type Ⅴ

Glycogen storage disease is a disease caused by the excessive deposition of glycogen in tissues due to hereditary glycogen metabolism disorders. Glycogen storage diseases are classified into 11 types according to the different enzyme defects that cause glycogen metabolism disorders and the tissues in which excess glycogen is deposited. Glycogen storage disease type V, also known as McArdle myopathy, is caused by a lack of muscle phosphorylase. The main clinical feature is pain, cramps, and weakness following severe muscle contractions.

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