Pesticide Exposure in Utero Linked to Brain Abnormalities, Columbia University Study  
5/1/2012 8:26:24 AM

Babies exposed in the womb to a commonly used insecticide have brain abnormalities after birth, according to a study that looked at children born before the U.S. limited the chemical’s use. Magnetic resonance imaging of elementary school-aged children with the highest exposure to chlorpyrifos, used mostly in agricultural settings now, showed structural changes in the brain compared with those who had the lowest exposure, research online today in Proceedings of the National Academy of Sciences found. Some parts of the brain were overgrown, while other regions were smaller, the scientists found.