A boy with a severe phenotype of succinic semialdehyde dehydrogenase deficiency.

Abstract excerpt

Succinic semialdehyde dehydrogenase (SSADH) deficiency is a rare autosomal recessive disorder affecting γ-aminobutyric acid degradation. We describe here a boy with a severe phenotype of SSADH deficiency. He was referred because of a developmental delay at 4 months of age. At the age of 8 months, severe seizures developed. The diagnosis of SSADH deficiency was confirmed by an increase in 4-hydroxybutyric acid and...

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