TY - JOUR

T1 - Mediators of lifestyle intervention effects on neonatal adiposity

T2 - are we missing a piece of the puzzle?

AU - Lima, Rodrigo Antunes

AU - Desoye, Gernot

AU - Simmons, David

AU - van Poppel, Mireille Nicoline Maria

AU - Devlieger, Roland

AU - Galjaard, Sander

AU - Corcoy, Rosa

AU - Adelantado, Juan M.

AU - Dunne, Fidelma

AU - Harreiter, Jürgen

AU - Kautzky-Willer, Alexandra

AU - Damm, Peter

AU - Mathiesen, Elisabeth R.

AU - Jensen, Dorte M.

AU - Andersen, Lise Lotte

AU - Tanvig, Mette

AU - Lapolla, Annunziata

AU - Dalfra, Maria Grazia

AU - Bertolotto, Alessandra

AU - Wender-Ozegowska, Ewa

AU - Zawiejska, Agnieszka

AU - Hill, David J.

AU - Snoek, Frank J.

AU - Jelsma, Judith G.M.

AU - on behalf of the DALI Core Investigator Group

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

U2 - 10.1038/s41390-021-01450-5

DO - 10.1038/s41390-021-01450-5

M3 - Journal article

C2 - 33753890

AN - SCOPUS:85102886687

VL - 91

SP - 522

EP - 525

JO - Pediatric Research

JF - Pediatric Research

SN - 0031-3998

ER -