Mediators of lifestyle intervention effects on neonatal adiposity: are we missing a piece of the puzzle?

Rodrigo Antunes Lima*, Gernot Desoye, David Simmons, Mireille Nicoline Maria van Poppel, On behalf of The DALI core investigator group, Peter Damm (Member of author group), Elisabeth R. Mathiesen (Member of author group), Dorte M. Jensen (Member of author group), Lise Lotte Andersen (Member of author group), Mette Tanvig (Member of author group)

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

We evaluated possible mediators underlying lifestyle intervention effects on neonatal adiposity, assessed with sum of skinfolds and cord blood leptin. This is a secondary analysis of the DALI study, a randomised controlled trial in nine European countries. Pregnant women with a pre-pregnancy body mass index of ≥29 kg/m2 were randomly assigned to counselling for healthy eating (HE), physical activity (PA), HE&PA combined, or to usual care. We considered five maternal metabolic factors at 24–28 and 35–37 weeks of gestation, and four cord blood factors as possible mediators of the effect of combined HE&PA counselling on neonatal adiposity. From all potential mediators, the intervention only affected cord blood non-esterified fatty acids (NEFA), which was higher in the HE&PA group compared to UC (0.068 (mmol/L), 95% CI: 0.004 to 0.133). Cord blood NEFA did not mediate the HE&PA intervention effects on neonatal sum of skinfolds or cord blood leptin, based on an indirect effect on skinfolds of 0.018 (mm), 95% CI: −0.217 to 0.253 and an indirect effect on leptin of −0.143 (μg/l), 95% CI: −0.560 to 0.273. The Dali study observed reductions in neonatal adiposity in pregnant women with obesity, but we were not able to identify the underlying metabolic pathway.

Original languageEnglish
JournalPediatric Research
Volume91
Issue number3
Pages (from-to)522-525
ISSN0031-3998
DOIs
Publication statusPublished - Feb 2022

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