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Molecular Mechanisms Underlying the Link between Diet and DNA Methylation
Fatma Zehra Kadayifci1,2, Shasha Zheng3, Yuan-Xiang Pan4,5,6
1Department of Public Health Sciences, California Baptist University, Riverside, CA 92504, USA. fzk@illinois.edu.
International Journal of Molecular Sciences
|December 19, 2018
Summary
Diet significantly impacts DNA methylation, a key epigenetic process regulating gene expression. Understanding these biochemical mechanisms is crucial for preventing diet-related disorders and harnessing nutrition
Area of Science:
- Epigenetics
- Molecular Biology
- Nutritional Science
Background:
- DNA methylation regulates gene expression without altering the DNA sequence, playing a vital role in epigenetics.
- Aberrant DNA methylation (hypo- and hypermethylation) is linked to improper gene expression and various disorders.
- While nutrition is a key modifiable factor influencing DNA methylation, its underlying biochemical mechanisms require further elucidation.
Purpose of the Study:
- To review the biochemical mechanisms through which dietary modifications influence DNA methylation and demethylation processes.
- To elucidate how nutrients interact with epigenetic regulation, specifically DNA methylation pathways.
Main Methods:
- Literature review focusing on biochemical mechanisms of diet-induced DNA methylation changes.
- Analysis of studies investigating the role of nutrients as substrates, cofactors, or modulators of methylation enzymes.
- Exploration of nutrient-mediated effects on the one-carbon metabolism and DNA demethylation pathways.
Main Results:
- Nutrition influences DNA methylation by altering essential substrates and cofactors.
- Dietary components can modulate the activity of enzymes involved in the one-carbon cycle.
- Nutrients may also play a role in regulating DNA demethylation activity.
Conclusions:
- Dietary interventions hold potential for modulating epigenetic regulation through DNA methylation.
- A deeper understanding of these biochemical pathways is essential for developing targeted nutritional strategies.
- Further research into nutrient-specific effects on DNA methylation and demethylation is warranted.
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