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Fetal programming: link between early nutrition, DNA methylation, and complex diseases.
1Department of Human Nutrition and Hygiene, Poznan University of Life Sciences, Wojska Polskiego 31, Poznan, Poland. agata@jay.up.poznan.pl
Nutrition Reviews
|February 9, 2010
Summary
Epigenetic factors like DNA methylation, influenced by maternal nutrition, play a crucial role in complex trait development and disease susceptibility. Fetal undernutrition can lead to permanent changes in gene expression and metabolism programming.
Area of Science:
- Epigenetics and Developmental Biology
- Nutritional Science
- Complex Trait Genetics
Background:
- Complex traits and diet-related diseases arise from gene-environment interactions.
- Epigenetic factors, such as DNA methylation, are critical regulators of gene expression during development.
- Maternal nutrition significantly impacts epigenotype establishment and fetal development.
Purpose of the Study:
- To highlight the role of epigenetic factors, specifically DNA methylation, in the development of complex traits.
- To emphasize the influence of in utero environmental conditions, particularly nutrition, on epigenetic programming.
- To explore the molecular mechanisms linking prenatal undernutrition to long-term metabolic programming.
Main Methods:
- Review of epidemiological studies on prenatal undernutrition.
- Analysis of molecular mechanisms involving DNA methylation and nutrient availability (methionine, B vitamins).
- Examination of the impact of undernutrition on cell number, organ structure, and gene expression.
Main Results:
- DNA methylation is sensitive to nutrient availability, including methionine and B vitamins.
- Prenatal undernutrition is associated with increased susceptibility to complex diseases.
- Molecular mechanisms include reduced cell numbers, altered organ function, and permanent changes in DNA methylation and gene expression.
Conclusions:
- Epigenetic modifications are key mediators between environmental factors (nutrition) and complex trait development.
- Fetal nutrition plays a critical role in establishing long-term health outcomes through epigenetic programming.
- Understanding these mechanisms is vital for preventing diet-related diseases.
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