PSYCH 020: Epigenetics in Psychiatry: The Promise for New Biomarkers and Treatments
If the genome provides the script, epigenetics determines how it is read. This chapter explores how environmental influences - from early life experiences to chronic stress - can modify gene expression without altering the underlying DNA sequence.
In this episode, we examine mechanisms such as DNA methylation and histone modification, which regulate whether genes are activated or silenced. These processes act as molecular switches, shaping how genetic potential is realised across development and throughout life.
Crucially, epigenetics provides a bridge between biology and experience. It…
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