Meta-Analysis of Neuropsychological Symptoms of Adolescents and Adults with PKU

Authors: Moyle, J.¹; Fox, A.; Arthur, M.; Bynevelt, M.; Burnett, J.

Source: Neuropsychology Review, Volume 17, Number 2, June 2007 , pp. 91-101(11)

Publisher: Springer

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Abstract:

Phenylketonuria (PKU; OMIM 261600) is an autosomal recessive inborn error of phenylanaline metabolism. PKU is characterized by deficient or defective phenylalanine hydroxylase activity and persistantly increased levels of the essential amino acid phenylalanine in the circulation. The present article examines current understanding of the etiology of PKU, along with a meta-analysis examining neuropsychological and intellectual presentations in continuously treated adolescents and adults. Patients with PKU differed significantly from controls on Full-Scale IQ, processing speed, attention, inhibition, and motor control. Future research utilizing an integrative approach and detailed analysis of specific cognitive domains will assist both the scientist and clinician, and ultimately the patient.

Keywords: Phenylketonuria; Phenylalanine; Phenylalanine hydroxylase; Meta-analysis; Oligodendrocytes

Document Type: Research article

DOI: 10.1007/s11065-007-9021-2

Affiliations: 1: Email: jonson.moyle@brainresource.com

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