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Early-Life Exposures, Neurodevelopment, and Health Outcomes: Protocol for a Birth Cohort Study.

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Summary
This summary is machine-generated.

Early life exposures to environmental pollutants and nutritional status impact child development and lifelong health. This study in Nepal investigates these exposome factors to inform interventions for vulnerable populations.

Keywords:
DOHaDDevelopmental Origins of Health and DiseaseNepalearly child developmentenvironmental pollutantsnutrition

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Area of Science:

  • Environmental Health
  • Developmental Pediatrics
  • Global Health

Background:

  • Negative early-life exposures, especially in the first 1000 days, can disrupt organ development and cause long-term health issues.
  • Understanding these exposures is critical for preventing lifelong negative health consequences.

Purpose of the Study:

  • To characterize early-life risk factors, including environmental pollutants and nutritional status, using an exposome and deep-phenotyping framework.
  • To identify associations between these exposures and short- and long-term health and developmental outcomes in children.
  • To investigate the most common environmental pollutants in Nepalese women and children and their social gradient.

Main Methods:

  • Utilizing a pregnancy cohort of 800 mother-infant pairs in Bhaktapur, Nepal, nested within a randomized controlled trial.
  • Collecting data on clinical, dietary, cognitive, demographic, anthropometric, environmental pollutant, inflammation, micronutrient, and hormonal variables during pregnancy and infancy.
  • Assessing outcomes including neurodevelopment, morbidity, mental health, vaccine responses, thyroid function, growth, body composition, lung function, and biomarkers of health and development.

Main Results:

  • Enrollment began in March 2017, with over 90% of the cohort providing data through the child's 4th birthday.
  • Project funding extends until July 2027, with publications anticipated before the end of 2026.
  • Analysis will examine associations using cross-sectional, case-control, and cohort designs with advanced statistical methods.

Conclusions:

  • The study leverages a well-characterized South Asian mother-child cohort with extensive longitudinal data and biological samples.
  • Integrating exposome data aims to enhance understanding of early-life health determinants.
  • Findings will inform policies and interventions to protect vulnerable women and children in marginalized settings.