The genetic and molecular mechanisms of congenital hyperinsulinism

Sonya Galcheva, Hüseyin Demirbilek, Sara Al-Khawaga, Khalid Hussain

Research output: Contribution to journalArticle

Abstract

Congenital hyperinsulinism (CHI) is a heterogenous and complex disorder in which the unregulated insulin secretion from pancreatic beta-cells leads to hyperinsulinaemic hypoglycaemia. The severity of hypoglycaemia varies depending on the underlying molecular mechanism and genetic defects. The genetic and molecular causes of CHI include defects in pivotal pathways regulating the secretion of insulin from the beta-cell. Broadly these genetic defects leading to unregulated insulin secretion can be grouped into four main categories. The first group consists of defects in the pancreatic KATP channel genes (ABCC8 and KCNJ11). The second and third categories of conditions are enzymatic defects (such as GDH, GCK, HADH) and defects in transcription factors (for example HNF1α, HNF4α) leading to changes in nutrient flux into metabolic pathways which converge on insulin secretion. Lastly, a large number of genetic syndromes are now linked to hyperinsulinaemic hypoglycaemia. As the molecular and genetic basis of CHI has expanded over the last few years, this review aims to provide an up-to-date knowledge on the genetic causes of CHI.

Original languageEnglish
Article number111
JournalFrontiers in Endocrinology
Volume10
Issue numberFEB
DOIs
Publication statusPublished - 1 Jan 2019

Fingerprint

Congenital Hyperinsulinism
Molecular Biology
Hypoglycemia
Insulin
Hepatocyte Nuclear Factor 1
KATP Channels
Secretory Pathway
Insulin-Secreting Cells
Metabolic Networks and Pathways
Food
Genes

Keywords

  • Genetics
  • Hyperinsulinism
  • Hypoglycaemia
  • Molecular mechanisms
  • Mutation

ASJC Scopus subject areas

  • Endocrinology, Diabetes and Metabolism

Cite this

The genetic and molecular mechanisms of congenital hyperinsulinism. / Galcheva, Sonya; Demirbilek, Hüseyin; Al-Khawaga, Sara; Hussain, Khalid.

In: Frontiers in Endocrinology, Vol. 10, No. FEB, 111, 01.01.2019.

Research output: Contribution to journalArticle

Galcheva, Sonya ; Demirbilek, Hüseyin ; Al-Khawaga, Sara ; Hussain, Khalid. / The genetic and molecular mechanisms of congenital hyperinsulinism. In: Frontiers in Endocrinology. 2019 ; Vol. 10, No. FEB.
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