New Neurons at Risk: Genotoxicants and Brain Development
2006
Genotoxicants and Brain Development
publication
Author Information
Author(s): Hood Ernie
Hypothesis
How do genotoxicants influence brain development?
Conclusion
Granule cells are more sensitive to genotoxicants than astrocytes, leading to long-term impairment in neuronal development.
Supporting Evidence
- Neurodevelopmental disorders affect 5-10% of babies born in the U.S. annually.
- 3% of these disorders are directly caused by environmental exposures to neurotoxicants.
- Granule cells lack the ability to repair DNA damage, leading to long-term impairment.
Takeaway
Some brain cells are more hurt by harmful chemicals than others, which can cause problems as the brain grows.
Methodology
The research exposed cultures of immature neurons and astrocytes to genotoxicants and analyzed cell viability, DNA damage, apoptosis markers, and gene expression.
Want to read the original?
Access the complete publication on the publisher's website