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Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Epigenetic Regulation

Epigenetic Regulation

Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
X-chromosome...

Epigenetic Regulation

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.

Gene-Environment Interactions

Gene-Environment Interactions

Gene expression is a dynamic process that is significantly influenced by environmental factors. This interaction underlies the complex nature of biological development and the phenotypic differences observed among individuals, even among those with identical genetic makeups. Factors such as radiation, temperature, behavior, nutrition, and stress play pivotal roles in determining how genes are expressed. The concept of the reaction range is central to understanding this interaction. It posits...

Environmental Influences on Intelligence

Environmental Influences on Intelligence

Despite the strong genetic influence on traits like intelligence, environmental factors significantly shape outcomes. For example, while over 90% of height variation is due to genetic differences, environmental factors such as nutrition also have a notable impact. Similarly, for intelligence, changes in a child's surroundings can significantly alter their IQ. Research shows that enriched environments boost children's academic success and help them develop key cognitive skills. Children from...

Genomic Imprinting and Inheritance

Genomic Imprinting and Inheritance

Diploid organisms inherit genetic material through chromosomes from both parents. Copies of the same gene are known as alleles. In most cases, both alleles are simultaneously expressed and allow various cellular processes to function optimally. If one of the alleles is missing or mutated, the expression of the other allele can compensate; however, this is not true for all genes.
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...

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Related Experiment Video

Updated: Jul 13, 2026

Stable Isotope In-Vivo Labeling for Mass-Spectrometry Identification of Paternal Metabolites Transferred from Sperm to Oocyte During Fertilization

Stable Isotope In-Vivo Labeling for Mass-Spectrometry Identification of Paternal Metabolites Transferred from Sperm to Oocyte During Fertilization

Published on: June 17, 2025

Early nutrition: impact on epigenetics.

John C Mathers¹

¹Human Nutrition Research Centre, School of Clinical Medical Sciences, University of Newcastle, Newcastle, UK.

Forum of Nutrition

|August 9, 2007

Summary

Early nutrition significantly impacts lifelong health. Epigenetic changes in the genome may explain how early nutritional exposures influence gene expression and disease susceptibility later in life.

Area of Science:

Nutritional epigenetics
Developmental origins of health and disease

Background:

Maternal nutrition and early life nutrition profoundly influence long-term health outcomes.
Low birth weight, followed by rapid growth, is linked to cardiovascular disease and type 2 diabetes.

Purpose of the Study:

To summarize evidence linking early nutrition to later health.
To review the role of epigenetic modifications in mediating these effects.

Main Methods:

Comprehensive literature review.

Main Results:

Early nutritional insults can lead to 'programming' of disease risk.
Epigenetic alterations in the genome are emerging as a key mechanism for recording nutritional exposures.
These epigenetic changes influence gene expression and cellular function, impacting later-life health.

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Optimized Analysis of DNA Methylation and Gene Expression from Small, Anatomically-defined Areas of the Brain

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Sample Preparation to Bioinformatics Analysis of DNA Methylation: Association Strategy for Obesity and Related Trait Studies

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Conclusions:

Early nutrition can alter chromatin structure and gene expression, affecting health across the lifespan.
The potential for interventions to reverse adverse epigenetic marks requires further investigation.