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Air pollution and genetics combine to increase risk for autism
Date:12/1/2013

sion of MET protein in both the brain and the immune system, and predicts altered brain structure and function. It will be important to replicate this finding and to determine the mechanisms by which these genetic and environmental factors interact to increase the risk for autism."

Independent studies by Volk and Campbell have previously reported associations between autism and air pollution exposure and between autism and a variant in the MET gene. The current study suggests that air pollution exposure and the genetic variant interact to augment the risk of ASD.

Campbell and Volk's team studied 408 children between 2 and 5 years of age from the Childhood Autism Risks From Genetics and the Environment Study, a population-based, case-control study of preschool children from California. Of those, 252 met the criteria for autism or autism spectrum disorder. Air pollution exposure was determined based on the past residences of the children and their mothers, local traffic-related sources, and regional air quality measures. MET genotype was determined through blood sampling.

Campbell and Volk continue to study the interaction of air pollution exposure and the MET genotype in mothers during pregnancy.


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Contact: Alison Trinidad
alison.trinidad@usc.edu
323-442-3941
University of Southern California - Health Sciences
Source:Eurekalert  

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