Evaluation report
The Role of Parenting in Mitigating Epigenetic Cardiometabolic Risk in a Sample of Predominantly Latino Preschoolers
López A, Merrill SM, Bozack AK, Cardenas A, Comer JS et al. ·
Summary
Written by AI, not yet AICS's view · claude-haiku-4-5-20251001This study examined whether a parenting intervention could reduce cardiometabolic risk in Latino preschoolers by measuring epigenetic markers of body mass index. Children who received the intervention showed significantly lower epigenetic BMI markers after 12 months compared to a control group, even though their actual weight did not change. The findings suggest that family-centered parenting programs may influence biological health pathways before visible physical changes occur.
Key points
- Children in the intervention group had significantly lower DNA methylation-derived BMI at 12 months compared to controls
- No treatment effect was observed for anthropometric (measured) BMI
- Epigenetic BMI was not associated with anthropometric BMI at 12 months
- Improved parenting practices did not mediate the intervention effects on epigenetic BMI
- Findings suggest parenting interventions may influence biological pathways related to cardiometabolic risk before observable physical changes
Limitations
The study uses a secondary analysis of an existing trial with a relatively small sample size (74 children). The mechanism by which parenting practices influence epigenetic markers remains unclear, as improved parenting did not mediate the observed effects.
Abstract
Background Childhood obesity is a prevalent public health concern, particularly among children from marginalized backgrounds. Epigenomic mechanisms, including DNA methylation (DNAm), offer insight into the biological embedding of metabolic risk, yet protective family-level factors remain understudied. This study examined whether participation in a positive parenting intervention was associated with reduced epigenetic cardiometabolic risk among preschool-aged children. Methods Participants were 74 children ( n = 35 intervention; n = 39 services-as-usual; mean age = 36 months). Using a secondary analysis of a randomized controlled trial, DNAm-derived body mass index (BMI) and anthropometric BMI were assessed at baseline and 12-month follow-up, and parenting practices were observed post-treatment. Results Children in the intervention group demonstrated significantly lower DNAm BMI at 12 months relative to controls, adjusting for child sex, race and/or ethnicity, and anthropometric BMI. No treatment effect was observed for anthropometric BMI, and DNAm BMI was not associated with anthropometric BMI at 12 months. Although parenting practices improved, they did not mediate intervention effects on DNAm-derived BMI. Conclusions Parenting interventions may influence biological pathways related to cardiometabolic risk, even before changes in anthropometric outcomes, underscoring the potential of family-centered approaches to promote early metabolic health. Impact Participation in a positive parenting intervention was associated with a lower epigenetic biomarker of BMI in preschool-aged children. Findings: highlight a disconnect between biological markers and traditional anthropometric measures. Results: underscore potential for early family-centered interventions to shape biological pathways associated with long-term health, ultimately supporting prevention strategies before clinical risk is observable.
Findings the Hub has extracted
Each claim below is labelled by its type of design and links back to this report.
- Intervention
- Positive parenting intervention delivered to families of preschool-aged children
- Population
- 74 preschool-aged children (mean age 36 months), predominantly Latino, with 35 in intervention group and 39 in services-as-usual control group
Key finding
Significantly lower DNA methylation-derived BMI at 12 months in intervention group relative to controls, adjusting for child sex, race/ethnicity, and anthropometric BMI