Latest international research: Some chemicals may affect the development of brain support cells. Oligodendrocytes surround neurons, improve their ability to transmit information, and form the brain's white matter (also called myelin) Development continues from prenatal to adulthood, making these cells particularly vulnerable to damage from toxic chemicals.

More research is needed to determine the effects of these chemicals and assess their risks to human health, the authors of the paper concluded.   China News Service, Beijing, March 26.