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Environmental Forces that Shape Early Development: What We Know and Still Need to Know.

Kartik Shankar1, R T Pivik1, Susan L Johnson2

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Summary
This summary is machine-generated.

Early life environmental exposures, or the "exposome," significantly impact child health and disease risk. Understanding these factors is crucial for lifelong well-being.

Keywords:
brain developmentchildhood obesityearly childhoodenvironment-gene interactionmaternal obesitymaternal weight gainplacenta

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Area of Science:

  • Environmental epigenetics
  • Childhood development
  • Nutritional science

Background:

  • Gene function is regulated by environmental factors through epigenetics, collectively termed the exposome.
  • Maternal health during pregnancy and caregiver influences post-birth shape a child's early life exposures.
  • Early life nutrient imbalances and dietary patterns can establish lifelong chronic disease risk.

Purpose of the Study:

  • To highlight the critical role of early life environmental exposures in shaping health outcomes.
  • To emphasize the need for research into caregiver-infant feeding relationships and their impact on food acceptance.
  • To advocate for novel research methodologies that capture the complexity of environment-gene interactions.

Main Methods:

  • Review of existing literature on epigenetics, the exposome, and early childhood development.
  • Discussion of the limitations of traditional clinical trials in nutrition for studying complex interactions.
  • Introduction of novel technologies and statistical approaches for gathering broad exposure data.

Main Results:

  • Maternal factors (diet, weight, activity) influence fetal growth and infant metabolism.
  • The critical window from birth to age 3 is highly susceptible to nutrient imbalances.
  • Caregiver-infant feeding dynamics directly shape dietary patterns with lifelong consequences.

Conclusions:

  • Understanding the exposome is essential for comprehending health beyond genetics.
  • Research must address the interconnectedness of environment, epigenetics, and early life exposures.
  • Innovative approaches are needed to study individual genetic makeup alongside unique environmental experiences.