Science In Action Autism and the epigenetics of early brain development
Sep 25, 2025
Jonathan Mill, an epigeneticist from the University of Exeter, discusses how epigenetic changes influence brain development and their complex ties to autism. Samia Iqbal, an evolutionary biologist, reveals insights from historic bacterial samples that show how antibiotic resistance evolved and spread. Gabriela Bishop from Wageningen University shares vital research on balancing agricultural land with natural habitats to protect pollinators, emphasizing specific habitat needs for different species.
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Epigenetic Control Defines Cell Identity
- Every cell has the same DNA but different genes are switched on by epigenetic mechanisms to define cell type.
- Jonathan Mill shows these epigenetic marks regulate gene expression without changing DNA sequence.
Early Prenatal Period Is A Critical Window
- The prenatal period shows accelerated epigenetic reprogramming that lays down brain cell identities.
- Genes linked to autism and schizophrenia are enriched for these dynamic developmental changes.
Rely On Evidence, Not Headlines
- Genetic variation plays a significant role in autism and schizophrenia, so avoid overattributing causes to maternal actions without evidence.
- Seek information and guidance from health professionals rather than unverified claims.