Document Detail

Maternal serum ferritin concentration is positively associated with newborn iron stores in women with low ferritin status in late pregnancy.
MedLine Citation:
PMID:  23014493     Owner:  NLM     Status:  MEDLINE    
Iron deficiency (ID) is common in pregnant women and infants, particularly in developing countries. The relation between maternal and neonatal iron status remains unclear. This study considered the issue in a large sample of mother-newborn pairs in rural southeastern China. Hemoglobin (Hb) and serum ferritin (SF) were measured in 3702 pregnant women at ≥37 wk gestation and in cord blood of their infants born at term (37-42 wk gestation). Maternal anemia (Hb <110 g/L) was present in 27.5% and associated with maternal SF <20 μg/L in 86.9%. Only 5.6% of neonates were anemic (Hb <130 g/L) and 9.5% had cord-blood SF <75 μg/L. There were low-order correlations between maternal and newborn iron measures (r = 0.07-0.10 for both Hb and SF; P ≤ 0.0001 due to the large number). We excluded 430 neonates with suggestion of inflammation [cord SF >370 μg/L, n = 208 and/or C-reactive protein (CRP) >5 mg/L, n = 233]. Piecewise linear regression analyses identified a threshold for maternal SF at which cord-blood SF was affected. For maternal SF below the threshold of 13.6 μg/L (β = 2.4; P = 0.001), cord SF was 0.17 SD lower than in neonates whose mothers had SF above the threshold (167 ± 75 vs. 179 ± 80 μg/L). The study confirmed that ID anemia remains common during pregnancy in rural southeastern China. Despite widespread maternal ID, however, iron nutrition seemed to meet fetal needs except when mothers were very iron deficient. The impact of somewhat lower cord SF on iron status later in infancy warrants further study.
Jie Shao; Jingan Lou; Raghavendra Rao; Michael K Georgieff; Niko Kaciroti; Barbara T Felt; Zheng-Yan Zhao; Betsy Lozoff
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2012-09-26
Journal Detail:
Title:  The Journal of nutrition     Volume:  142     ISSN:  1541-6100     ISO Abbreviation:  J. Nutr.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-10-22     Completed Date:  2013-01-02     Revised Date:  2014-09-17    
Medline Journal Info:
Nlm Unique ID:  0404243     Medline TA:  J Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2004-9     Citation Subset:  IM    
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MeSH Terms
Anemia, Iron-Deficiency / blood,  epidemiology
China / epidemiology
Ferritins / blood*,  metabolism*
Fetal Blood / chemistry
Infant, Newborn
Iron / metabolism*
Pregnancy Complications, Hematologic
Young Adult
Grant Support
Reg. No./Substance:
9007-73-2/Ferritins; E1UOL152H7/Iron

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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