Reference Work Entry

Encyclopedia of Molecular Mechanisms of Disease

pp 2228-2230

Von Gierke Disease

  • Janice Y. ChouAffiliated withInstitute of Physiology, University of TuebingenSection on Cellular Differentiation, Heritable Disorders Branch, National Institute of Child Health and Human Development, National Institutes of Health
  • , Brian C. MansfieldAffiliated withCorrelogic Systems, Inc., Rockville

Synonyms

Glycogen storage disease type I (GSD-I); GSD-Ia (MIM232200); GSD-Ib (MIM232220)

Definition and Characteristics

Von Gierke disease is a group of autosomal recessive disorders of glucose metabolism. The primary defect is in the impaired conversion of glucose-6-phosphate (G6P) to glucose and phosphate due to mutation of either glucose-6-phosphatase-α (G6Pase-α, synonym G6PC) in GSD-Ia, or the G6P transporter (G6PT, synonym SLC37A4) in GSD-Ib [1]. Only a single G6Pase activity, expressed primarily in the liver, kidney and intestine [1], was known until 2003 when a second ubiquitous G6P hydrolase activity was identified. The original G6Pase is now designated G6Pase-α, the second, G6Pase-β (synonym G6PC3). G6Pase-β is not currently implicated in von Gierke disease, although it impacts glucose metabolism in neutrophils. GSD-I patients manifest fasting hypoglycemia, hepatomegaly, nephromegaly, hyperlipidemia, hyperuricemia, lactic acidemia, and growth ...

This is an excerpt from the content