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Novel mutation c.597_598dup in exon 5 of ABCC8 gene causing congenital hyperinsulinism
Radhika Jindal1, Ayesha Ahmad2, Mohammad Asim Siddiqui1
1Department of Endocrinology, Indraprastha Apollo Hospital, Sarita Vihar, New Delhi, India.
Abstract:
Congenital hyperinsulinism (CHI), a clinically and genetically heterogeneous disease, characterized by the unregulated secretion of insulin from pancreatic β-cells, is the most common cause of persistent hypoglycemia in infancy. Early diagnosis and maintenance of normoglycaemia are essential to prevent adverse neurodevelopmental outcomes. The most common and severe forms of CHI are caused by inactivating mutations in ABCC8 and KCNJ11 genes, encoding the two subunits of the pancreatic β-cell ATP sensitive potassium channel (KATP). We report a case of neonatal CHI due to a novel homozygous recessive mutation in the ABCC8 gene.
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