About The Medical Condition Phenylketonurias, Classical
Find the definition of the medical term Phenylketonurias, Classical. Phenylketonurias, Classical defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Phenylketonurias, Classical
| Phenylketonurias, Classical Medical Condition |
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What's The Definition Of The Medical Condition Phenylketonurias, Classical?
A group of autosomal recessive disorders marked by a deficiency of the hepatic enzyme PHENYLALANINE HYDROXYLASE or less frequently by reduced activity of DIHYDROPTERIDINE REDUCTASE (i.e., atypical phenylketonuria). Classical phenylketonuria is caused by a severe deficiency of phenylalanine hydroxylase and presents in infancy with developmental delay; SEIZURES; skin HYPOPIGMENTATION; ECZEMA; and demyelination in the central nervous system. (From Adams et al., Principles of Neurology, 6th ed, p952).
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