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Iron and protein sufficiency and red cell indices in phenylketonuria

G L Arnold1, R Kirby, C Preston

  • 1Department of Pediatrics, University of Rochester School of Medicine and Dentistry, New York 14642, USA. Georgianne_Arnold@urmc.rochester.edu

Journal of the American College of Nutrition
|April 11, 2001
PubMed

Insights

Children with treated phenylketonuria (PKU) may develop anemia due to iron or protein deficiencies. Monitoring ferritin, blood counts, and prealbumin is crucial for early detection and management in all PKU patients.

Area of Science:

  • Biochemistry
  • Pediatric Hematology
  • Nutritional Science

Background:

  • Phenylketonuria (PKU) is a genetic disorder requiring lifelong dietary management.
  • Treated PKU patients may face nutritional challenges impacting hematopoiesis.
  • Understanding hematological profiles in treated PKU is essential for optimal health outcomes.

Purpose of the Study:

  • To evaluate hematopoiesis in children with treated PKU.
  • To assess the impact of iron and protein sufficiency on blood parameters.
  • To identify reliable markers for monitoring nutritional status and hematological health.

Main Methods:

  • Retrospective review of medical records for 41 children with treated PKU.
  • Analysis of hematological parameters including red blood cell indices and iron/protein markers.
  • Correlation of nutritional status (iron, protein) with hematopoiesis.

Main Results:

  • 15% of children with treated PKU presented with anemia.
  • Combined iron and protein depletion was strongly associated with anemia.
  • Iron deficiency without anemia was observed in 10% of patients.
  • Low plasma prealbumin correlated significantly with altered hematopoiesis and poor growth.

Conclusions:

  • Children with treated PKU exhibit altered red blood cell characteristics.
  • Iron and protein depletion can precipitate anemia in this population.
  • Routine monitoring of ferritin, complete blood counts, and prealbumin is recommended for all ages.
Abstract

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