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    Early life environment significantly impacts child development and future disease risk. Epigenetic changes, influenced by maternal factors, link early exposures to long-term health outcomes.

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    Area of Science:

    • Developmental Biology
    • Epigenetics
    • Public Health

    Background:

    • Early life environment critically influences human growth, development, and long-term noncommunicable disease risk.
    • Maternal factors like adiposity, vitamin D status, gestational weight gain, and breastfeeding duration are associated with childhood adiposity and bone/muscle development.
    • Fetal adaptations and epigenetic changes are potential mechanisms linking maternal influences to offspring body composition.

    Purpose of the Study:

    • To explore the role of early life environmental influences on human growth and development.
    • To investigate the mechanisms, particularly epigenetic changes, that link maternal factors to offspring health outcomes.
    • To highlight the potential for early intervention strategies based on understanding developmental plasticity.

    Main Methods:

    • Review of human studies identifying associations between maternal factors and offspring outcomes.
    • Examination of experimental studies demonstrating environmentally induced phenotypic alterations via epigenetic mechanisms.
    • Focus on epigenetic processes including DNA methylation, histone modifications, and non-coding RNAs.

    Main Results:

    • Childhood adiposity is linked to maternal adiposity, low maternal vitamin D, excessive gestational weight gain, and shorter breastfeeding duration.
    • Maternal diet and vitamin D status in pregnancy correlate with childhood bone mineral content and muscle function.
    • Epigenetic mechanisms are substantial evidence for mediating the effects of early life environment on phenotype.

    Conclusions:

    • Early life environment plays a crucial role in programming long-term health and disease risk.
    • Epigenetic modifications are key mediators of developmental plasticity and environmental influences.
    • Understanding these epigenetic processes can inform early intervention strategies for improved development and growth.