Journal
PEDIATRIC OBESITY
Volume 13, Issue 1, Pages 46-53Publisher
WILEY
DOI: 10.1111/ijpo.12187
Keywords
Neonatal; obesity; offspring; pregnancy
Categories
Funding
- Deakin University
- National Health and Medical Research Council of Australia [607370, 1009044, 102997, 1082037, 1076667, 1084017]
- Jack Brockhoff Foundation
- Scobie Trust
- Shane O'Brien Memorial Asthma Foundation
- Our Women's Our Children's Fundraising Committee Barwon Health
- Rotary Club of Geelong
- Shepherd Foundation
- Victorian Government's Operational Infrastructure Support Programme
- Ilhan Foundation
- Sidney Myer Scholarship
- National Health and Medical Research Council (Australia) [APP1064629]
- National Heart Foundation of Australia [100419]
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BackgroundExcess adiposity and adiposity-related inflammation are known risk factors for cardiovascular disease in adults; however, little is known regarding the determinants of adiposity-related inflammation at birth. ObjectivesThe aim of this study was to investigate the association between maternal pre-pregnancy BMI and newborn adiposity and inflammation. MethodsPaired maternal (28-week gestation) and infant (umbilical cord) blood samples were collected from a population-derived birth cohort (Barwon Infant Study, n=1074). Data on maternal comorbidities and infant birth anthropomorphic measures were compiled, and infant aortic intima-media thickness was measured by trans-abdominal ultrasound. In a selected subgroup of term infants (n=161), matched maternal and cord lipids, high-sensitivity C-reactive protein (hsCRP) and maternal soluble CD14 were measured. Analysis was completed by using pairwise correlation and linear regression. Because of their non-normal distribution, pathology blood measures were log transformed prior to analysis. ResultsMaternal pre-pregnancy BMI was positively associated with increased birth weight (mean difference 17.8g per kgm(-2), 95% CI 6.6 to 28.9; p=0.002), newborn mean skin-fold thickness (mean difference 0.1mm per kgm(-2), 95% CI 0.0 to 0.1; p<0.001) and cord blood hsCRP (mean difference of 4.2% increase in hsCRP per kgm(-2) increase in pre-pregnancy BMI, 95% CI 0.6 to 7.7%, p=0.02), but not cord blood soluble CD14. Inclusion of maternal hsCRP as a covariate attenuated the associations between pre-pregnancy BMI and both newborn skin-fold thickness and cord blood hsCRP. ConclusionHigher maternal pre-pregnancy BMI is associated with increased newborn adiposity and inflammation. These associations may be partially mediated by maternal inflammation during pregnancy.
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