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As if I needed further convinced that epigenetics (the control of gene expression through nutrition) is the great wave of the future, a pre-publication results of a study released to members of The Epigenetic Society should satisfy for quite a while.
In a study soon to be published in the Journal Biological Psychiatry, researchers looked at the epigenetic effects of childhood maltreatment and early trauma. Using laboratory rats (whose epigenetic mechanisms are very similar to humans) the researchers exposed infant rats to stressed caretakers who predominately displayed abusive behaviors.
They found that early maltreatment produced persistent changes in the methylation of a gene called BDNF (brain derived neurotrophic factor) that is responsible for the developmental health of the cerebral cortex.
In addition, they observed disturbed BDNF methylation in the offspring of females that had previously experienced the maltreatment regimen, indicating that the epigenetic effects of abuse, trauma and neglect were carried from one generation to the next.
The GenoType Diet carries the promise of a genetic redemption of sorts, since as in the words of one researcher “Unlike defective genes, which are damaged for life, methylated genes can be demethylated. And, methyl tags that are knocked off can be regained via nutrients, drugs, and enriching experiences.” (2)
- Tania L. Roth TL, Farah D. Lubin FD, Adam J. Funk and J. David Sweatt. Lasting Epigenetic Influence of Early-life Adversity on the BDNF Gene. Biological Psychiatry, In Press
- Asim K. Duttaroy Evolution, Epigenetics, and Maternal Nutrition 2006 Darwin Day Celebration.
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