2004
DOI: 10.1017/s0012162204000386
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Neuropsychological functioning in children with early-treated phenylketonuria: impact of white matter abnormalities

Abstract: Impact of white matter abnormalities (WMAs) on neuropsychological functioning in children with early-treated phenylketonuria (ETPKU) was examined. Children with ETPKU (20 males, 12 females, mean age 11 years 2 months, SD 3 years 6 months) and controls (20 males, 14 females, mean age 10 years 4 months, SD 3 years 1 month) aged 7 to 18 years were assessed using tests of attention, processing speed, memory and learning, executive function, and academic achievement. Those with ETPKU, exhibiting WMAs extending into… Show more

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Cited by 29 publications
(34 citation statements)
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References 50 publications
(86 reference statements)
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“…Whether Processing Speed may be affected by white matter disease in the MMA patient population deserves further study, especially because several studies have established that whereas children with early-treated phenylketonuria exhibit a global pattern of impairment, a particular deficit in Processing Speed is present. 35,36 Future investigations that concurrently and prospectively examine brain MRI and magnetic resonance spectroscopy findings in parallel with neuropsychological testing in patients with MMA should help define which central nervous system domains and structures clinically contribute to the observed neurocognitive phenotype.…”
Section: Discussionmentioning
confidence: 99%
“…Whether Processing Speed may be affected by white matter disease in the MMA patient population deserves further study, especially because several studies have established that whereas children with early-treated phenylketonuria exhibit a global pattern of impairment, a particular deficit in Processing Speed is present. 35,36 Future investigations that concurrently and prospectively examine brain MRI and magnetic resonance spectroscopy findings in parallel with neuropsychological testing in patients with MMA should help define which central nervous system domains and structures clinically contribute to the observed neurocognitive phenotype.…”
Section: Discussionmentioning
confidence: 99%
“…Dicho de otro modo, los pacientes con FCU tratados precozmente tienden a necesitar más tiempo para procesar información y completar tareas que los controles y, en consecuencia, son más lentos en su respuesta a estímulos, cuando eligen entre objetivos o cuando completan actividades simples o complejas. A pesar del peso de las pruebas que permiten suponer una reducción de la eficiencia del procesamiento en los pacientes afectados de FCU [5,14,41,51] , debe puntualizarse que también existe investigación contradictoria [7,26,52] . El procesamiento de información más lento puede tener implicaciones significativas sobre la codificación y el almacenamiento de nueva información y la función ejecutiva.…”
Section: Procesamiento De La Informaciónunclassified
“…Cuando individuos con niveles elevados de PHE se cotejan con individuos con niveles bajos de PHE, el subgrupo con niveles elevados de PHE tiende a presentar mayores deterioros de la función ejecutiva [23,26,56] . En algunos estudios se ha comunicado que la función ejecutiva se asocia a los niveles de PHE en el momento de la evaluación [31,33,57,59] , mientras que en otros no se ha podido establecer dicha relación [5,14,22,73,74] . Además, la potencia de la relación entre el rendimiento en las mediciones de la función ejecutiva y los ni- veles de PHE varía según las mediciones [31,52,59] .…”
Section: Función Ejecutiva (Fe)unclassified
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