About The Medical Condition Classical Phenylketonuria
Find the definition of the medical term Classical Phenylketonuria. Classical Phenylketonuria defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Classical Phenylketonuria
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What's The Definition Of The Medical Condition Classical Phenylketonuria?
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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