Treatable neurotransmitter deficiency in mild phenylketonuria.

Abstract:

:The authors describe a case of neurologic involvement in mild hyperphenylalaninemia (HPA), not due to tetrahydrobiopterin (BH(4)) deficiency, with low levels of monoamine neurotransmitter metabolites in CSF. The combined BH(4)-Phe loading test suggested a BH(4) response, confirmed by clinical improvement after BH(4) therapy. Molecular study revealed a compound heterozygosity of the phenylalanine hydroxylase alleles: a mild HPA-associated mutation (T380M) and the new mutation D151E. This case demonstrates that even mild HPA, generally considered a benign disorder, may present neurologic impairment.

journal_name

Neurology

journal_title

Neurology

authors

Bonafé L,Blau N,Burlina AP,Romstad A,Güttler F,Burlina AB

doi

10.1212/wnl.57.5.908

subject

Has Abstract

pub_date

2001-09-11 00:00:00

pages

908-11

issue

5

eissn

0028-3878

issn

1526-632X

journal_volume

57

pub_type

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