Phenylketonuria (PKU) is an autosomal recessive metabolic genetic disorder characterized by a mutation in the gene for the hepatic enzyme phenylalanine hydroxylase (PAH), rendering it nonfunctional. This enzyme is necessary to metabolize the amino acid phenylalanine (Phe) to the amino acid tyrosine. When PAH activity is reduced, phenylalanine accumulates and is converted into phenylpyruvate (also known as phenylketone), which is detected in the u...
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Parent Disease:
- Genetic disorder ,
- Inborn errors of amino acid metabolism ,
- Nervous system disease ,
- Nutrition disorder
Symptoms:
- Microcephaly ,
- Hypopigmentation ,
- Seizure ,
- Albinism ,
- Hyperactivity ,
- Mental retardation ,
- Eczema ,
- Learning disability ,
- Brain damage ,
- Stunted growth
Associated medical specialties:
Also known as:
- PKU,
- Phenylketonuria (PKU),
- Phenylketonuria (elevated)