2012
DOI: 10.2223/jped.2175
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Relationships between phenylalanine levels, intelligence and socioeconomic status of patients with phenylketonuria

Abstract: Objectives: To assess intelligence and its relationship with blood phenylalanine concentrations and socioeconomic status in patients with phenylketonuria after 6 to 12 years of treatment.Methods: Sixty-three children were classified according to phenylalanine levels and socioeconomic status and assessed using the Wechsler Intelligence Scale for Children. The Statistical Package for the Social Sciences (SPSS) was used to analyze phenylalanine; ANOVA was used to analyze intelligence quotients (IQ) and phenylalan… Show more

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Cited by 16 publications
(23 citation statements)
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“…However, a relationship has also been observed with concurrent phenylalanine values at the time of conducting tests. 12,22 In our group of patients, there is a trend towards a reverse relation between IQ and concurrent phenylalanine, phenylalanine median and phenylalanine/tyrosine ratio.…”
Section: Discussionmentioning
confidence: 64%
“…However, a relationship has also been observed with concurrent phenylalanine values at the time of conducting tests. 12,22 In our group of patients, there is a trend towards a reverse relation between IQ and concurrent phenylalanine, phenylalanine median and phenylalanine/tyrosine ratio.…”
Section: Discussionmentioning
confidence: 64%
“…Esse número representa 67% dos pacientes, com idades entre 4 e 10 anos, e 30% de todos aqueles com PKU diagnosticados e tratados precocemente no estado de Minas Gerais, desde 1993, quando o programa foi implantado. Importante salientar que o tratamento precoce, em estudo realizado neste mesmo centro de referência, preveniu o retardo mental em 90,5% dos pacientes 14 . É, portanto, uma amostra bastante representativa dessa população.…”
Section: Discussionunclassified
“…20,21 Existe una relación entre la función intelectual y los valores de fenilalanina plasmática a lo largo de la vida, sobre todo, en períodos críticos de desarrollo neurológico, pero también se ha observado relación con los valores concurrentes de fenilalanina en el momento de la realización de los tests. 12,22 En nuestro grupo de pacientes, hay una tendencia a la relación inversa entre el CI y la fenilalanina concurrente, la mediana de fenilalanina y el cociente fenilalanina/tirosina.…”
Section: Tabla 2 Medias Y Desviaciones Estándar De Las Puntuaciones unclassified