Dietary Changes and Epigenetic Variation in Mice
Author Information
Author(s): Li Cheryl C. Y., Cropley Jennifer E., Cowley Mark J., Preiss Thomas, Martin David I. K., Suter Catherine M.
Primary Institution: Victor Chang Cardiac Research Institute, University of New South Wales
Hypothesis
Can sustained dietary changes induce epigenetic variation in isogenic mice?
Conclusion
Sustained exposure to dietary methyl donors increases epigenetic variability in isogenic mice, with effects magnified over generations.
Supporting Evidence
- Methyl donor supplementation leads to increased epigenetic variability among individuals.
- Long-term dietary changes result in a larger number of loci exhibiting epigenetic variability.
- Certain gene ontology categories are significantly overrepresented in genes near methylation-variable loci.
Takeaway
Feeding mice a special diet for a long time can change how their genes work without changing the genes themselves, and these changes can be passed down to their babies.
Methodology
The study assessed genomic CpG methylation patterns in isogenic mice exposed to dietary methyl donors for one or six generations.
Limitations
The study's findings may not be generalizable beyond the specific dietary conditions and mouse model used.
Participant Demographics
Isogenic C57Bl/6J mice were used in the study.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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