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Published on: October 24, 2019
Newborn adipokines and early childhood growth
E H Yeung1, R Sundaram2, Y Xie3
1Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.
Insights
Adipokine levels at birth, including resistin and leptin, were linked to early childhood growth. Resistin may be important for understanding pediatric obesity.
Area of Science:
- Pediatric Endocrinology
- Metabolic Research
- Growth and Development
Background:
- Adipokines regulate satiety and energy metabolism.
- The association between adipokines and childhood growth remains unclear.
Purpose of the Study:
- To evaluate the association between adipokine levels at birth and subsequent childhood growth.
Main Methods:
- Newborn blood spots from 2264 singletons and 1144 twins (Upstate KIDS study, 2008-2010) were analyzed for adiponectin, leptin, and resistin.
- Parent-reported anthropometry was collected every 4-6 months.
- Generalized linear mixed effects models estimated growth trajectories up to 3 years of age.
Main Results:
- In singletons, resistin and leptin were associated with higher weight-for-age and BMI z-scores.
- Resistin and a resistin-to-adiponectin ratio remained associated with weight and overweight risk in singletons after adjusting for birthweight.
- In twins, adiponectin was linked to increased weight-for-age and length-for-age z-scores, even after adjusting for birthweight.
Conclusions:
- Adipokine levels at birth show small associations with early childhood growth.
- Resistin warrants further investigation for its role in pediatric obesity.
Background:
While adipokines can regulate satiety and energy metabolism, whether they are associated with childhood growth is unclear.
Objective:
To evaluate whether adipokine levels at birth are associated with growth.
Methods:
A total of 2264 singletons and 1144 twins from Upstate KIDS (born 2008-2010) had adiponectin, leptin, resistin and complement factor D measured in newborn blood spots. Parents reported anthropometry from paediatric visits via questionnaires every 4-6 months. Generalized linear mixed effects models were used to estimate growth trajectories through 3 years of age.
Results:
Among singletons, resistin and leptin were associated with greater weight-for-age (0.12 z-score units (95%CI: 0.04, 0.20) [p = 0.003] and 0.15 (0.06, 0.24) [p = 0.001], respectively) and BMI z-score (0.11; 0.02, 0.20 [p = 0.02] and 0.18; 0.07, 0.28 [p = 0.002], respectively). After adjusting for birthweight, resistin and a ratio of resistin-to-adiponectin remained associated with weight through 3 years of age and odds of being overweight at 3 years of age in a subgroup of singletons. Among twins, adiponectin was associated with increased weight-for-age and length-for-age z-scores even after adjusting for birthweight (0.18; 0.08, 0.28 [p = 0.0006]; 0.20; 0.07, 0.33 [p = 0.003], respectively).
Conclusions:
Levels of adipokines were associated with early childhood growth in small magnitudes. Resistin may be relevant for further examination in paediatric obesity.
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