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Relationships between maternal obesity and maternal and neonatal iron status

Lookup NU author(s): Dr Ruth Bell

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

© 2018 by the authors. Licensee MDPI, Basel, Switzerland. Obesity in pregnancy may negatively influence maternal and infant iron status. The aim of this study was to examine the association of obesity with inflammatory and iron status in both mother and infant in two prospective studies in pregnancy: UPBEAT and SCOPE. Maternal blood samples from obese (n = 245, BMI ≥ 30 kg/m2) and normal weight (n = 245, BMI < 25 kg/m2) age matched pregnant women collected at approximately 15 weeks’ gestation, and umbilical cord blood samples collected at delivery, were analysed for a range of inflammatory and iron status biomarkers. Concentrations of C-reactive protein and Interleukin-6 in obese women compared to normal weight women were indicative of an inflammatory response. Soluble transferrin receptor (sTfR) concentration [18.37 nmol/L (SD 5.65) vs 13.15 nmol/L (SD 2.33)] and the ratio of sTfR and serum ferritin [1.03 (SD 0.56) vs 0.69 (SD 0.23)] were significantly higher in obese women compared to normal weight women (P < 0.001). Women from ethnic minority groups (n = 64) had higher sTfR concentration compared with white women. There was no difference in maternal hepcidin between obese and normal weight women. Iron status determined by cord ferritin was not statistically different in neonates born to obese women compared with neonates born to normal weight women when adjusted for potential confounding variables. Obesity is negatively associated with markers of maternal iron status, with ethnic minority women having poorer iron statuses than white women.


Publication metadata

Author(s): Flynn AC, Begum S, White SL, Dalrymple K, Gill C, Alwan NA, Kiely M, Latunde-Dada G, Bell R, Briley AL, Nelson SM, Oteng-Ntim E, Sandall J, Sanders TA, Whitworth M, Murray DM, Kenny LC, Poston L, on behalf of the SCOPE and UPBEAT Consortiums

Publication type: Article

Publication status: Published

Journal: Nutrients

Year: 2018

Volume: 10

Issue: 8

Online publication date: 30/07/2018

Acceptance date: 24/07/2018

Date deposited: 20/08/2018

ISSN (electronic): 2072-6643

Publisher: MDPI AG

URL: https://doi.org/10.3390/nu10081000

DOI: 10.3390/nu10081000


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