Glutamate dehydrogenase hyperinsulinism: mechanisms, diagnosis, and treatment

Orphanet J Rare Dis. 2023 Jan 31;18(1):21. doi: 10.1186/s13023-023-02624-6.

Abstract

Congenital hyperinsulinism (CHI) is a genetically heterogeneous disease, in which intractable, persistent hypoglycemia is induced by excessive insulin secretion and increased serum insulin concentration. To date,15 genes have been found to be associated with the pathogenesis of CHI. Glutamate dehydrogenase hyperinsulinism (GDH-HI) is the second most common type of CHI and is caused by mutations in the glutamate dehydrogenase 1 gene. The objective of this review is to summarize the genetic mechanisms, diagnosis and treatment progress of GDH-HI. Early diagnosis and treatment are extremely important to prevent long-term neurological complications in children with GDH-HI.

Keywords: Congenital hyperinsulinism (CHI); Glutamate dehydrogenase 1 (GLUD1) gene; Glutamate dehydrogenase hyperinsulinism (GDH-HI).

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Child
  • Congenital Hyperinsulinism* / diagnosis
  • Congenital Hyperinsulinism* / genetics
  • Glutamate Dehydrogenase* / genetics
  • Humans
  • Insulin
  • Mutation / genetics

Substances

  • Glutamate Dehydrogenase
  • Insulin