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Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
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Iron homeostasis after blood transfusion in stable preterm infants - an observational study

Jacky Herzlich, Ita Litmanovitz, Rivka Regev

    Journal of Perinatal Medicine
    |March 19, 2016
    PubMed

    Insights

    Preterm infants regulate iron levels after blood transfusions by adjusting hepcidin and erythropoietin. This iron regulation ability in neonates changes with postnatal age.

    Area of Science:

    • Neonatology
    • Hematology
    • Pediatric Iron Metabolism

    Background:

    • Preterm infants often require red blood cell transfusions (RBCTs).
    • Understanding the short-term impact of RBCTs on iron homeostasis is crucial for optimizing infant care.

    Purpose of the Study:

    • To investigate the immediate effects of RBCTs on key iron status markers, hepcidin, and erythropoietin in stable preterm infants.
    • To explore the relationship between these markers and factors like postnatal age.

    Main Methods:

    • Sixty-three preterm infants receiving RBCTs were studied.
    • Blood samples were collected before and within 24 hours after each transfusion to measure hemoglobin, ferritin, soluble transferrin receptor (sTfR), reticulocyte count, hepcidin, and erythropoietin.

    Main Results:

    • RBCTs led to increased hemoglobin and ferritin levels, and decreased reticulocyte counts.
    • Hepcidin serum levels rose significantly post-transfusion, while erythropoietin levels decreased.
    • A strong positive correlation was observed between hepcidin and ferritin levels after RBCTs, with hepcidin regulation varying by postnatal age.

    Conclusions:

    • Preterm infants demonstrate an ability to manage iron levels post-transfusion through hepcidin regulation and erythropoietin suppression.
    • The capacity for iron homeostasis following RBCTs is influenced by the infant's postnatal age.
    Abstract

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