Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0026827 (hypotonia)
 5,860 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We report a boy with 4-hydroxybutyric aciduria resulting from a deficiency of succinic semialdehyde dehydrogenase (SSADH). A boy, 1 year 5 months, showed delayed walk with hypotonia and could not speak meaningful words. The blood levels of lactate, pyruvate and amino acids were not elevated. Head magnetic resonance imaging (MRI) and electroenchephalography (EEG) were normal. Urinary organic acid analysis with gas chromatography-mass spectrometry (GCMS) revealed increased levels of 4-hydroxybutyric acid, glutaric acid, adipic acid and suberic acid. The concentrations of 4-hydroxybutyric acid and gamma-aminobutyric acid (GABA) were elevated in the serum and cerebrospinal fluid (CSF). SSADH activity in cultured lymphoblasts was 4.5% of the normal level. So far as we know this is the first Japanese patient diagnosed as 4-hydroxybutyric acid. Urinary organic acid analysis is necessary for the diagnosis of patients with unexplained psychomotor retardation.
 ...
PMID:The first case of 4-hydroxybutyric aciduria in Japan. 1124 63