Congenital hyperinsulinism
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Congenital hyperinsulinism is a condition that causes individuals to have abnormally high levels of insulin. Insulin is a hormone that helps control levels of blood glucose, also called blood sugar. People with this condition have frequent episodes of low blood glucose (hypoglycemia). In infants and young children, these episodes are characterised by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.
Descrição
Congenital hyperinsulinism is a condition that causes individuals to have abnormally high levels of insulin. Insulin is a hormone that helps control levels of blood glucose, also called blood sugar. People with this condition have frequent episodes of low blood glucose (hypoglycemia). In infants and young children, these episodes are characterised by a lack of energy (lethargy), irritability, or difficulty feeding. Repeated episodes of low blood glucose increase the risk for serious complications such as breathing difficulties, seizures, intellectual disability, vision loss, brain damage, and coma.
The severity of congenital hyperinsulinism varies widely among affected individuals, even among members of the same family. About 60 percent of infants with this condition experience a hypoglycemic episode within the first month of life. Other affected children develop hypoglycemia by early childhood. Unlike typical episodes of hypoglycemia, which occur most often after periods without food (fasting) or after exercising, episodes of hypoglycemia in people with congenital hyperinsulinism can also occur after eating.
Padrões de herança
The source lists the following possible inheritance patterns: Autosomal dominant; Autosomal recessive. More than one pattern can apply in different cases.
Related genes
Other names
Hyperinsulinemia hypoglycemia of infancy
Infancy hyperinsulinemia hypoglycemia
Neonatal hyperinsulinism
Persistent hyperinsulinemia hypoglycemia of infancy
Persistent hyperinsulinemic hypoglycemia
PHHI hypoglycemia
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Leitura adicional e referências
- Congenital hyperinsulinism; MedlinePlus, National Library of Medicine.
- Huopio H, Shyng SL, Otonkoski T, Nichols CG. K(ATP) channels and insulin secretion disorders. Am J Physiol Endocrinol Metab. 2002 Aug;283(2):E207-16. doi: 10.1152/ajpendo.00047.2002.
- James C, Kapoor RR, Ismail D, Hussain K. The genetic basis of congenital hyperinsulinism. J Med Genet. 2009 May;46(5):289-99. doi: 10.1136/jmg.2008.064337. Epub 2009 Mar 1.
- Kapoor RR, James C, Hussain K. Advances in the diagnosis and management of hyperinsulinemic hypoglycemia. Nat Clin Pract Endocrinol Metab. 2009 Feb;5(2):101-12. doi: 10.1038/ncpendmet1046.
- Meissner T, Wendel U, Burgard P, Schaetzle S, Mayatepek E. Long-term follow-up of 114 patients with congenital hyperinsulinism. Eur J Endocrinol. 2003 Jul;149(1):43-51. doi: 10.1530/eje.0.1490043.
- Mohamed Z, Arya VB, Hussain K. Hyperinsulinaemic hypoglycaemia:genetic mechanisms, diagnosis and management. J Clin Res Pediatr Endocrinol. 2012 Dec;4(4):169-81. doi: 10.4274/jcrpe.821. Epub 2012 Oct 2.
- Pinney SE, MacMullen C, Becker S, Lin YW, Hanna C, Thornton P, Ganguly A, Shyng SL, Stanley CA. Clinical characteristics and biochemical mechanisms of congenital hyperinsulinism associated with dominant KATP channel mutations. J Clin Invest. 2008 Aug;118(8):2877-86. doi: 10.1172/JCI35414.
- Sandal T, Laborie LB, Brusgaard K, Eide SA, Christesen HB, Sovik O, Njolstad PR, Molven A. The spectrum of ABCC8 mutations in Norwegian patients with congenital hyperinsulinism of infancy. Clin Genet. 2009 May;75(5):440-8. doi: 10.1111/j.1399-0004.2009.01152.x.
- Snider KE, Becker S, Boyajian L, Shyng SL, MacMullen C, Hughes N, Ganapathy K, Bhatti T, Stanley CA, Ganguly A. Genotype and phenotype correlations in 417 children with congenital hyperinsulinism. J Clin Endocrinol Metab. 2013 Feb;98(2):E355-63. doi: 10.1210/jc.2012-2169. Epub 2012 Dec 28.
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