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The prenatal environment and later cardiovascular disease
Samantha Louey1, Kent L Thornburg
1Heart Research Center, Oregon Health & Science University, Portland, Oregon, 97239-3098, USA.
Early Human Development
|September 3, 2005
Summary
Early life environmental exposures can program the heart, increasing adult risk for coronary disease. This programming involves altered gene expression and growth, leading to cardiovascular disease vulnerability later in life.
Area of Science:
- Developmental biology
- Cardiovascular science
- Epigenetics
Background:
- Prenatal and early postnatal environments significantly impact long-term health.
- Sub-optimal conditions during critical developmental periods can lead to 'programming' of disease risk.
- Cardiovascular disease risk in adulthood is influenced by early life exposures.
Purpose of the Study:
- To explain the concept of developmental programming in the context of cardiovascular disease.
- To identify known stressors and their impact on fetal and embryonic development.
- To elucidate the mechanisms and risk factors associated with programming-induced cardiovascular vulnerability.
Main Methods:
- Review of existing literature on developmental programming and cardiovascular disease.
- Analysis of how environmental stressors alter gene expression and organ development.
- Identification of observable risk factors in programmed individuals.
Main Results:
- Exposure to stressors like hypoxia, malnutrition, or excess glucocorticoids can program the developing cardiovascular system.
- Programming manifests as altered growth patterns, structural heart changes, impaired endothelial function, and dyslipidemia.
- Childhood growth patterns, such as rapid weight gain, can be indicators of early life programming.
Conclusions:
- Early life environmental exposures are critical determinants of adult cardiovascular health.
- Developmental programming is a key mechanism linking early life stress to adult coronary disease and heart failure.
- Understanding programming pathways can inform strategies for cardiovascular disease prevention.