Glycogen storage disease type V (GSD-V), also known as McArdle disease, is an autosomal recessive disorder of glycogen metabolism. GSD-V is caused by mutations in the PYGM gene, which encodes muscle glycogen phosphorylase. It is characterized by exercise intolerance, muscle cramping, and myoglobinuria.
Category
Inherited metabolic disorder
Brite
Human diseases in ICD-11 classification [BR:br08403]
05 Endocrine, nutritional or metabolic diseases
Metabolic disorders
Inborn errors of metabolism
5C51 Inborn errors of carbohydrate metabolism
H01943 Glycogen storage disease type V
Pathway-based classification of diseases [BR:br08402]
Carbohydrate metabolism
nt06017 Glycogen metabolism
H01943 Glycogen storage disease type V
