Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?

Phenylketonuria is caused by mutations in the enzyme phenylalanine hydroxylase gene, that can result in abnormal concentrations of phenylalanine on blood, resulting in metabolites that can cause brain damage. The treatment is based on dietary restriction of phenylalanine, and noncompliance with trea...

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Main Authors: Mayara Thays Beckhauser, Mirella Maccarini Peruchi, Gisele Rozone de Luca, Katia Lin, Sofia Esteves, Laura Vilarinho, Jaime Lin
Format: Article
Language:English
Published: MDPI AG 2011-05-01
Series:Clinics and Practice
Subjects:
Online Access:https://www.clinicsandpractice.org/index.php/cp/article/view/73
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author Mayara Thays Beckhauser
Mirella Maccarini Peruchi
Gisele Rozone de Luca
Katia Lin
Sofia Esteves
Laura Vilarinho
Jaime Lin
author_facet Mayara Thays Beckhauser
Mirella Maccarini Peruchi
Gisele Rozone de Luca
Katia Lin
Sofia Esteves
Laura Vilarinho
Jaime Lin
author_sort Mayara Thays Beckhauser
collection DOAJ
description Phenylketonuria is caused by mutations in the enzyme phenylalanine hydroxylase gene, that can result in abnormal concentrations of phenylalanine on blood, resulting in metabolites that can cause brain damage. The treatment is based on dietary restriction of phenylalanine, and noncompliance with treatment may result in damage of the brain function. Brain abnormalities can be seen on magnetic resonance imaging of these individuals. Studies indicate that the appearance of abnormalities in white matter reflects high levels of phenylalanine on the blood. This case will show the clinical and neuroradiological aspects of a teenager with constant control of phenylalanine levels. Despite the continuous monitoring and early treatment, the magnetic resonance imaging identified impressive abnormalities in the white matter. This leads us to one question: is the restriction of phenylalanine sufficient to prevent changes in the white matter in patients with phenylketonuria?
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spelling doaj.art-af3dfb281c944ebd852d24d8f367fd942022-12-22T02:20:35ZengMDPI AGClinics and Practice2039-72752039-72832011-05-011210.4081/cp.2011.e2529Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?Mayara Thays Beckhauser0Mirella Maccarini Peruchi1Gisele Rozone de Luca2Katia Lin3Sofia Esteves4Laura Vilarinho5Jaime Lin6Department of Biology, Medicine and Social Sciences, Universidade do Sul de Santa Catarina (UNISUL)Department of Radiology, Hospital São João BatistaDepartment of Biology, Medicine and Social Sciences, Universidade do Sul de Santa Catarina (UNISUL)Neurology Division, Department of Internal Medicine, Universidade Federal de Santa Catarina (UFSC), Santa CatarinaMedical Genetics Center, National Health Institute (INSA), PortoMedical Genetics Center, National Health Institute (INSA), PortoDepartment of Biology, Medicine and Social Sciences, Universidade do Sul de Santa Catarina (UNISUL)Phenylketonuria is caused by mutations in the enzyme phenylalanine hydroxylase gene, that can result in abnormal concentrations of phenylalanine on blood, resulting in metabolites that can cause brain damage. The treatment is based on dietary restriction of phenylalanine, and noncompliance with treatment may result in damage of the brain function. Brain abnormalities can be seen on magnetic resonance imaging of these individuals. Studies indicate that the appearance of abnormalities in white matter reflects high levels of phenylalanine on the blood. This case will show the clinical and neuroradiological aspects of a teenager with constant control of phenylalanine levels. Despite the continuous monitoring and early treatment, the magnetic resonance imaging identified impressive abnormalities in the white matter. This leads us to one question: is the restriction of phenylalanine sufficient to prevent changes in the white matter in patients with phenylketonuria?https://www.clinicsandpractice.org/index.php/cp/article/view/73phenylketonuriaadolescentdemyelinationwhite matterphenylalanine.
spellingShingle Mayara Thays Beckhauser
Mirella Maccarini Peruchi
Gisele Rozone de Luca
Katia Lin
Sofia Esteves
Laura Vilarinho
Jaime Lin
Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
Clinics and Practice
phenylketonuria
adolescent
demyelination
white matter
phenylalanine.
title Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
title_full Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
title_fullStr Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
title_full_unstemmed Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
title_short Neuroradiological findings of an adolescent with early treated phenylketonuria: is phenylalanine restriction enough?
title_sort neuroradiological findings of an adolescent with early treated phenylketonuria is phenylalanine restriction enough
topic phenylketonuria
adolescent
demyelination
white matter
phenylalanine.
url https://www.clinicsandpractice.org/index.php/cp/article/view/73
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