An Examination of Brown Adipose Tissue and Energy Expenditure in Infants
Pennington Biomedical Research Center
Summary
Excess fetal adipose tissue growth during intrauterine development increases future obesity risk. Development of brown adipose tissue, a highly thermogenic organ in utero, may affect postnatal energy expenditure, thus influencing obesity risk. This pilot research study is designed to understand the developmental origins of energy balance by examining maternal and neonatal factors that influence neonatal brown adipose tissue and to quantify its physiological relevance to energy expenditure in human neonates.
Description
The developmental origins of obesity begin in utero with growth and differentiation of adipose tissue. Fetal white adipose tissue accretion is highly variable and dependent on the maternal intrauterine environment. Unlike white adipose tissue, brown adipose tissue has a high capacity for thermogenesis. Brown adipose tissue is present at birth and it is believed to support the critical function of thermoregulation in early postnatal life. Therefore, Brown adipose tissue may also influence the development of neonatal energy balance. Similar to white adipose tissue, it is hypothesized that develo…
Eligibility
- Age range
- Up to 0 years
- Sex
- All
- Healthy volunteers
- Not specified
Inclusion Criteria: * aged 0 weeks to less than 3 weeks at visit 1 * be willing to complete MRI procedures Exclusion Criteria: * Unable to complete two clinic visits within 14 days * Born with health conditions that would render the procedures unsafe * Born earlier than 36 and 0 days gestation * Taken a steroid drug since birth * Implanted metal or electronic objects that render MRI unsafe
Location
- Pennington Biomedical Research CenterBaton Rouge, Louisiana