| TYROSINEMIA III | |
| 4-HYDROXYPHENYLPYRUVATE DIOXYGENASE DEFICIENCY | |
|
276710
OMIM = Online Mendelian Inheritance of Men | |
|
69723 | |
| 4-hydroxyphenylpyruvate dioxygenase | |
| 1.13.11.27 | |
| 12q24.31 |
|
| E70.2 | |
| rare (<1:1000000) autosomal recessive Mutations in the 4-hydroxyphenylpyruvic acid dioxygenase gene (HPD) are responsible for tyrosinemia type III and hawkinsinuria [Tomoeda K et al. 2000] | |
| Laboratory findings | L-Tyrosine inc (plasma) 4-Hydroxyphenylacetic acid inc (urine) 4-Hydroxyphenyllactic acid inc (urine) 4-Hydroxyphenylpyruvic acid inc (urine) |
| Symptoms | Amino acids, plasma intellectual disability/intellectual developmental disorder mental retardation Organic acids, urine ataxia cerebral atrophy epilepsy lethargy, drowsiness, apathy MRI, brain, abnormalities [-] onset, infancy onset, neonatal seizures |