Blood manganese concentration is elevated in infants with iron deficiency

Sangkyu Park1, Chang-Sun Sim, Heun Lee

  • 1Department of Pediatrics, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea.

Insights

Iron deficiency in infants is linked to higher blood manganese (Mn) levels. Supplementing with iron normalized Mn levels, suggesting iron deficiency increases Mn absorption.

Area of Science:

  • Pediatric Nutrition
  • Trace Element Metabolism
  • Hematology

Background:

  • Iron deficiency is common in infants and can affect various physiological processes.
  • Manganese (Mn) is an essential trace element, but its levels in relation to iron status are not well understood in infants.
  • Understanding nutrient interactions is crucial for optimal infant health and development.

Purpose of the Study:

  • To investigate the relationship between iron deficiency and blood manganese concentration in infants.
  • To determine if iron supplementation affects blood manganese levels in iron-deficient infants.

Main Methods:

  • A comparative study involving 31 iron-deficient infants and 36 healthy controls (aged 6-24 months).
  • Measurements included blood manganese, complete blood counts, serum ferritin, and iron/transferrin iron-binding capacity (Fe/TIBC).
  • Iron-deficient infants received iron supplementation, with follow-up measurements for a subset (n=19).

Main Results:

  • Infants with iron deficiency exhibited significantly higher blood manganese concentrations compared to controls.
  • Following iron therapy, blood manganese levels in previously deficient infants decreased significantly.
  • Iron supplementation led to significant increases in hemoglobin and ferritin levels in the treated infants.

Conclusions:

  • Iron deficiency is associated with elevated blood manganese levels in infants.
  • Iron therapy effectively reduces blood manganese concentrations in iron-deficient infants.
  • The findings suggest that iron deficiency may enhance manganese absorption in infants.

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