Sweet DG, Savage G, Tubman TR, Lappin TR, Halliday HL. Study of maternal influences on fetal iron status at term using cord blood transferrin receptors.
Arch Dis Child Fetal Neonatal Ed 2001;
84:F40-3. [PMID:
11124923 PMCID:
PMC1721190 DOI:
10.1136/fn.84.1.f40]
[Citation(s) in RCA: 50] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS
To determine effects of maternal iron depletion and smoking on iron status of term babies using serum transferrin receptors (STfR) and their ratio to ferritin (TfR-F index) in cord blood.
METHODS
Iron, ferritin, STfR, and haemoglobin (Hb) concentration were measured and TfR-F index calculated in 67 cord /maternal blood pairs. Twenty six mothers were iron depleted (ferritin <10 microg/l) and 28 were smokers.
RESULTS
Maternal iron depletion was associated with decreased cord ferritin (113 v 171 microg/l) and Hb (156 v 168 g/l) but no change in STfR or TfR-F index. Smoking was associated with increased cord Hb (168 v 157 g/l) and TfR-F index (4.1 v 3.4), and decreased ferritin (123 v 190 microg/l). Cord TfR-F index and Hb were positively correlated (r = 0.48).
CONCLUSIONS
Maternal iron depletion is associated with reduced fetal iron stores but no change in free iron availability. Smoking is associated with increased fetal iron requirements for erythropoiesis.
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