Early life experiences, the neural epigenome and affective disorder risk.

Early life stress is linked to persistent, cell-type- and brain-region-specific epigenomic remodeling that alters gene regulation and increases susceptibility to neuropsychiatric disorders.

• Why it matters: Sensitive developmental windows make early adversity a high-stakes period, yet the mechanisms linking stress to long-lasting affective disorder risk remain incompletely mapped.
• What they did: The work synthesizes evidence from animal models and human studies showing stress-associated changes in DNA methylation, histone post-translational modifications, chromatin organization, and stress-linked non-coding RNA regulation.
• The result: Peripheral epigenetic signatures may serve as accessible biomarkers of early life stress exposure and disease risk, supporting integrated epigenomic–transcriptomic–circuit–behavior approaches to identify resilience mechanisms and improve interventions.

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