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Serum pro-hepcidin levels and relationships with iron parameters in healthy preterm and term newborns
Filiz Tiker1, Banu Celik, Aylin Tarcan
1Department of Neonatology, Baskent University Faculty of Medicine, Ankara, Turkey. filiztiker@yahoo.com
Insights
Healthy newborns, both preterm and term, exhibit elevated serum pro-hepcidin levels. This study found no correlation between pro-hepcidin and iron status markers in these infants.
Area of Science:
- Neonatal physiology
- Iron metabolism
- Endocrinology
Background:
- Hepcidin is a key regulator of iron homeostasis.
- Pro-hepcidin is the precursor peptide form of hepcidin.
- Understanding neonatal iron regulation is crucial for infant health.
Purpose of the Study:
- To measure serum pro-hepcidin levels in healthy preterm and term newborns.
- To investigate the relationship between pro-hepcidin and iron parameters (serum iron, ferritin, transferrin) in neonates.
Main Methods:
- Serum samples collected from 16 term and 26 preterm infants.
- Analyzed for complete blood count, iron, ferritin, transferrin, and pro-hepcidin.
- Statistical analysis to compare groups and test correlations.
Main Results:
- Serum pro-hepcidin levels were high in both term (482 +/- 371.9 ng/mL) and preterm (496.7 +/- 443.5 ng/mL) newborns.
- No significant correlations found between pro-hepcidin and serum iron, ferritin, or transferrin.
- Pro-hepcidin levels did not correlate with gestational age in preterm infants.
Conclusions:
- Healthy preterm and term newborns demonstrate elevated serum pro-hepcidin levels.
- Neonatal pro-hepcidin levels do not appear to be directly associated with iron status markers in this cohort.
- Further research may be needed to elucidate the role of pro-hepcidin in neonatal iron homeostasis.
Abstract:
A recently isolated peptide hormone, hepcidin, is thought to be the principal regulator of iron homeostasis. Hepcidin acts by limiting intestinal iron absorption and promoting iron retention in reticuloendothelial cells. Its precursor peptide form is called pro-hepcidin. The aims of this study were to determine serum pro-hepcidin levels in healthy preterm and term newborns, and to assess possible relationships between pro-hepcidin and serum iron, serum ferritin, and transferrin. A serum sample was collected from each of 26 healthy preterm (gestational age < 37 weeks) and 16 healthy, full-term, appropriate-for-gestational age babies. The preterm babies were also divided into 2 subgroups based on gestational age. Samples were analyzed for complete blood count, serum iron and ferritin concentrations, iron-binding capacity, and transferrin and pro-hepcidin levels. Group findings were compared and correlations between pro-hepcidin and the iron parameters were tested. The respective serum pro-hepcidin levels (mean +/- SD) in the 16 healthy term and 26 healthy preterm newborns were 482 +/- 371.9 ng/mL and 496.7 +/- 443.5 ng/mL. Analysis revealed no significant correlations between serum pro-hepcidin level and serum iron, serum ferritin, or transferrin in the preterm or term newborns. Pro-hepcidin levels were not correlated with gestational age in the preterm group. The results indicate that healthy preterm and term newborns have high pro-hepcidin levels.
