Glycogen storage disease type IV
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Glycogen storage disease type IV (GSD IV), or Andersen's Disease,[2][3] is a form of glycogen storage disease, which is caused by an inborn error of metabolism. It is the result of a mutation in the GBE1 gene, which causes a defect in the glycogen branching enzyme. Therefore, glycogen is not made properly and abnormal glycogen molecules accumulate in cells; most severely in cardiac and muscle cells. The severity of this disease varies on the amount of enzyme produced. GSD IV is autosomal recessive, which means each parent has a mutant copy of the gene, but show no symptoms of the disease. Having an autosomal recessive inheritance pattern, males and females are equally likely to be affected by Andersen's disease. Classic Andersen's disease typically becomes apparent during the first few months after the patient is born. Approximately 1 in 20,000 to 25,000 newborns have a glycogen storage disease.[4] Andersen's disease affects 1 in 800,000 individuals worldwide, with 3% of all GSDs being type IV.[5] The disease was described and studied first by Dorothy Hansine Andersen.[6][7]
Glycogen storage disease type IV | |
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Other names | Andersen's triad, Andersen’s disease[1] |
Glycogen | |
Specialty | Endocrinology, medical genetics, hepatology |