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Does maternal knowledge impact blood phenylalanine concentration in Turkish children with phenylketonuria?

H Gokmen Ozel1, T Kucukkasap, G Koksal

  • 1Faculty of Health Sciences, Department of Nutrition and Dietetics, Hacettepe University, 06100, Ankara, Turkey. hgokmen@hacettepe.edu.tr

Journal of Inherited Metabolic Disease
|June 27, 2008
PubMed

Insights

Maternal knowledge of the phenylketonuria (PKU) diet significantly impacts blood phenylalanine control in children. Improving dietary education, particularly regarding phenylalanine exchanges, is crucial for better metabolic outcomes in PKU patients.

Area of Science:

  • Metabolic disorders
  • Pediatric nutrition
  • Genetics

Background:

  • Phenylketonuria (PKU) is a genetic disorder requiring strict dietary management.
  • Effective management relies on maternal understanding of the low-phenylalanine (Phe) diet.
  • Blood Phe control is a key indicator of treatment success.

Purpose of the Study:

  • To assess maternal knowledge of PKU and its dietary treatment.
  • To correlate maternal knowledge with blood Phe control in children with PKU.
  • To identify areas for improved dietary education.

Main Methods:

  • A cohort of 144 children (aged 1-15 years) with PKU was studied.
  • Mothers completed a 20-question multiple-choice questionnaire on PKU and diet.
  • Median blood Phe concentration over 3 years served as the metabolic control measure.

Main Results:

  • 87 children exceeded recommended blood Phe levels.
  • A negative correlation was found between maternal knowledge of Phe exchanges and child's blood Phe concentration (p<0.05).
  • Maternal understanding of the 15 mg Phe exchange system correlated with dietary compliance.

Conclusions:

  • Maternal knowledge, especially regarding Phe exchanges, is linked to metabolic control in PKU.
  • There is a need for enhanced dietary education strategies for mothers managing PKU.
  • Simpler methods for teaching Phe exchanges could improve dietary adherence and outcomes.

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