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Congenital hyperinsulinism (CHI) is biochemically characterised by the dysregulated secretion of insulin from pancreatic beta-cells. It is a major cause of persistent hyperinsulinaemic hypoglycaemia (HH) in the newborn and infancy period. Genetically CHI is a heterogeneous condition with mutations in seven different genes described. The genetic basis of CHI(More)
OBJECTIVE The phenotype associated with heterozygous HNF4A gene mutations has recently been extended to include diazoxide responsive neonatal hypoglycemia in addition to maturity-onset diabetes of the young (MODY). To date, mutation screening has been limited to patients with a family history consistent with MODY. In this study, we investigated the(More)
Recessive inactivating mutations in the ABCC8 and KCNJ11 genes encoding the adenosine triphosphate-sensitive potassium (K(ATP)) channel subunit sulphonylurea receptor 1 (SUR1) and inwardly rectifying potassium channel subunit (Kir6.2) are the most common cause of hyperinsulinaemic hypoglycaemia (HH). Most of these patients do not respond to treatment with(More)
Inactivating mutations in the pancreatic beta cell ATP-sensitive potassium (K(ATP) ) channel genes are identified by sequencing in approximately 80% of patients with diazoxide-unresponsive hyperinsulinaemic hypoglycaemia (HH). Genetic testing is clinically important as the mode of inheritance of a K(ATP) channel mutation(s) provides information on the(More)
OBJECTIVE To identify the genetic cause of transient neonatal diabetes mellitus in three siblings from an Indian family. METHODS Case reports with clinical and molecular evaluation of an activating mutation in the KCNJ11 gene are presented. We describe an Indian family with two asymptomatic parents with 3 children presenting with hyperglycemia at 6, 1.5(More)
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