Genotoxicants Target Distinct Molecular Networks in Neonatal Neurons
2006

Genotoxicants Affect Brain Development in Neonates

Sample size: 6 publication 10 minutes Evidence: high

Author Information

Author(s): Kisby Glen E., Olivas Antoinette, Standley Melissa, Lu Xinfang, Pattee Patrick, O’Malley Jean, Li Xiaorong, Muniz Juan, Nagalla Srinavasa R.

Primary Institution: Oregon Health & Science University

Hypothesis

How do genotoxicants influence cerebellar function during early development?

Conclusion

Genotoxicants induce distinct gene expression changes in immature neurons, which may explain varying responses of the developing brain.

Supporting Evidence

  • Neuronal viability was significantly reduced at high concentrations of MAM and HN2.
  • DNA damage and apoptosis markers increased with genotoxicant treatment.
  • Distinct gene expression patterns were observed for MAM and HN2.

Takeaway

Some harmful chemicals can change how baby brain cells grow and work, which might lead to problems later on.

Methodology

The study measured gene expression in immature cerebellar neurons after treatment with methylazoxymethanol (MAM) and nitrogen mustard (HN2).

Participant Demographics

Neonatal C57BL/6 mice were used for the study.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1289/ehp.9073

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