Iron homeostasis disruption and oxidative stress in preterm newborns

Genny Raffaeli, Francesca Manzoni, Valeria Cortesi, Giacomo Cavallaro, Fabio Mosca, Stefano Ghirardello

Research output: Contribution to journalArticle

Abstract

Iron is an essential micronutrient for early development, being involved in several cellular processes and playing a significant role in neurodevelopment. Prematurity may impact on iron homeostasis in different ways. On the one hand, more than half of preterm infants develop iron deficiency (ID)/ID anemia (IDA), due to the shorter duration of pregnancy, early postnatal growth, insufficient erythropoiesis, and phlebotomy losses. On the other hand, the sickest patients are exposed to erythrocytes transfusions, increasing the risk of iron overload under conditions of impaired antioxidant capacity. Prevention of iron shortage through placental transfusion, bloodsparing practices for laboratory assessments, and iron supplementation is the first frontier in the management of anemia in preterm infants. The American Academy of Pediatrics recommends the administration of 2 mg/kg/day of oral elemental iron to human milk-fed preterm infants from one month of age to prevent ID. To date, there is no consensus on the type of iron preparations, dosages, or starting time of administration to meet optimal cost-efficacy and safety measures. We will identify the main determinants of iron homeostasis in premature infants, elaborate on ironmediated redox unbalance, and highlight areas for further research to tailor the management of iron metabolism.

Original languageEnglish
Article number1554
JournalNutrients
Volume12
Issue number6
DOIs
Publication statusPublished - Jun 2020

Keywords

  • Anemia
  • Blood-sparing
  • Iron
  • Prematurity
  • Redox unbalance
  • Transfusion

ASJC Scopus subject areas

  • Food Science
  • Nutrition and Dietetics

Fingerprint Dive into the research topics of 'Iron homeostasis disruption and oxidative stress in preterm newborns'. Together they form a unique fingerprint.

  • Cite this