Hyperinsulinism-hyperammonemia syndrome: a de novo mutation of the GLUD1 gene in twins and a review of the literature (CROSBI ID 324026)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Ninković, Dorotea ; Sarnavka, Vladimir ; Bašnec, Anica ; Ćuk, Mario ; Ramadža, Danijela Petković ; Fumić, Ksenija ; Kušec, Vesna ; Santer, René ; Barić, Ivo
engleski
Hyperinsulinism-hyperammonemia syndrome: a de novo mutation of the GLUD1 gene in twins and a review of the literature
Hyperinsulinism-hyperammonemia (HI/HA) syndrome is a rare autosomal dominant disease characterized by recurrent hypoglycemia and persistent mild elevation of plasma ammonia. HI/HA syndrome is one of the more common forms of congenital hyperinsulinism (CHI), caused by activating mutations within the GLUD1 gene that encodes the mitochondrial enzyme glutamate dehydrogenase (GDH). We report here on monozygotic twin girls presented with fasting- and protein-induced hypoglycemia and mild persistent hyperammonemia. Genetic analysis revealed that both girls were heterozygous for a novel missense mutation within exon 11 [c.1499A>T, p.(R443W)] of the GLUD1 gene. Despite early treatment with diazoxide and a low protein diet, they both developed non-hypoglycemic seizures in early childhood followed by cognitive impairment. In addition to their clinical course, a review of the literature on HI/HA syndrome is provided.
cognitive impairment ; epilepsy ; GLUD1 gene ; glutamate dehydrogenase ; hyperammonemia ; hypoglycemia
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Podaci o izdanju
29 (9)
2016.
1083-1088
objavljeno
2191-0251
10.1515/jpem-2016-0086