Epigenetic influences that modulate infant growth, development, and disease

Area of Science:

• Epigenetics and developmental biology
• Molecular mechanisms of development

Background:

• Epigenetic modifications influence mammalian fetal and infant development, potentially leading to disease.
• Fetal programming via epigenetic changes is linked to adult-onset conditions like diabetes and hypertension.
• Transgenerational epigenetic effects are also a consideration.

Purpose of the Study:

• To explore the role of epigenetic modifications in normal human development.
• To understand how environmental and endogenous factors impact development through epigenetic mechanisms.
• To identify potential therapeutic strategies for epigenetic modulation.

Main Methods:

• The study reviews established knowledge on epigenetic processes.
• It synthesizes information on critical developmental periods and susceptibility to epigenetic influences.
• It discusses the impact of environmental agents and endogenous factors.

Main Results:

• Epigenetic modifications (DNA methylation, histone modification, miRNA effects) are crucial for cell differentiation from a single zygote.
• Critical in-utero periods exist where demethylation and de novo methylation make the fetus susceptible to epigenetic influences.
• Environmental factors and stress during development can have immediate, lifelong, and multi-generational effects.

Conclusions:

• Understanding developmental epigenetic influences is key to preventing disease and promoting healthy growth.
• Targeted epigenetic modulation using agents like folic acid during critical periods shows therapeutic promise.
• Modulating one-carbon metabolism offers a potential new frontier for clinical therapeutics.