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[Resorption disorders in children with phenylketonuria]
Acta Biologica Et Medica Germanica
|January 1, 1982
Insights
Infants and toddlers with phenylketonuria show impaired D-xylose absorption, suggesting potential malabsorption issues. This occurs regardless of diet duration, highlighting the need for further investigation into dietary side effects.
Area of Science:
- Biochemistry
- Pediatric Nutrition
- Gastroenterology
Context:
- Phenylketonuria (PKU) is a genetic disorder requiring a phenylalanine-restricted diet.
- Dietary management of PKU can have potential secondary effects on nutrient absorption.
- Infants and toddlers are a vulnerable population undergoing critical growth and development.
Purpose:
- To assess D-xylose absorption in infants and toddlers with phenylketonuria.
- To compare xylose resorption in PKU patients with healthy controls.
- To investigate the relationship between phenylalanine-restricted diet duration and xylose absorption.
Summary:
- D-xylose loading tests were performed on infants and toddlers diagnosed with phenylketonuria.
- Results indicated significantly poorer xylose resorption in PKU patients compared to healthy controls.
- This malabsorption was observed irrespective of how long the phenylalanine-restricted diet had been followed.
Impact:
- Suggests a potential for malabsorption as a secondary complication of phenylketonuria dietary management.
- Recommends further investigation into gastrointestinal effects of long-term dietary interventions in PKU.
- Informs clinical practice regarding monitoring nutritional status and potential absorption issues in pediatric PKU patients.
Abstract:
The usual loading test with D-xylose was carried out repeatedly in infants and toddlers with phenylketonuria. Significantly worse values of xylose resorption were found in comparison with healthy controls independent of the duration of the phenylalanine restricted diet. A further clearing for the matter of malabsorption in phenylketonuria seems to be recommendable with regard to secondary effects of the diet.