Hyperinsulinism-hyperammonemia Syndrome: a de novo mutation of the GLUD1 gene in twins and a review of the literature
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Hyperinsulinism-hyperammonemia Syndrome: a de novo mutation of the GLUD1 gene in twins and a review of the literature. / Ninković, Dorotea; Sarnavka, Vladimir; Bašnec, Anica; Ćuk, Mario; Ramadža, Danijela Petković; Fumić, Ksenija; Kušec, Vesna; Santer, René; Barić, Ivo.
In: J PEDIATR ENDOCR MET, Vol. 29, No. 9, 01.09.2016, p. 1083-8.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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T1 - Hyperinsulinism-hyperammonemia Syndrome: a de novo mutation of the GLUD1 gene in twins and a review of the literature
AU - Ninković, Dorotea
AU - Sarnavka, Vladimir
AU - Bašnec, Anica
AU - Ćuk, Mario
AU - Ramadža, Danijela Petković
AU - Fumić, Ksenija
AU - Kušec, Vesna
AU - Santer, René
AU - Barić, Ivo
PY - 2016/9/1
Y1 - 2016/9/1
N2 - 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.
AB - 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.
U2 - 10.1515/jpem-2016-0086
DO - 10.1515/jpem-2016-0086
M3 - SCORING: Journal article
C2 - 27383869
VL - 29
SP - 1083
EP - 1088
JO - J PEDIATR ENDOCR MET
JF - J PEDIATR ENDOCR MET
SN - 0334-018X
IS - 9
ER -