4-hydroxybutyricaciduria
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Epidemiology
rare
Pathology
- accumulation of 4-hydroxybutyric acid in physiologic fluids
- inborn error of 4-aminobutyric acid (GABA) metabolism
Genetics
- associated with defects in ALDH5A1 (succinate semialdehyde dehydrogenase)
Clinical manifestations
- severe ataxia
- mildly retarded psychomotor development
Laboratory
- urinalysis: 4-hydroxybutyricaciduria