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Environmental Risk Factors

Large Study Suggests Genes & Environment Contribute Equally to Autism Risk

Largest-ever autism risk analysis provides further evidence that genetic and nongenetic factors both contribute powerfully to ASD
May 03, 2014

The largest-ever study of its kind suggests that the risk of autism is influenced equally by genetic and environmental factors. In scientific terms, environmental factors include a broad range of influences. In autism, these can be as varied as parental age, birth complications, maternal nutrition at conception and exposure to pollution during early brain development.

Gene Change Plus Prenatal Exposure to Pollution Ups Autism Risk

Study documents first clear example of long-suspected gene-environment interactions in the development of autism
December 02, 2013

Pregnancy, Fever and Autism

May 24, 2012

 

Mothers who recalled having a fever during pregnancy were twice as likely to have a child with autism as were mothers who did not recall such fevers, according to newly published research. However, those mothers who reported taking medication to reduce their fevers did not show this increased risk.

Mom’s Age and Autism Risk

April 23, 2012

Autism researchers study the link between parental age and autism risk because the relationship provides important clues to the factors that lead to autism. For example, increasing age may bring greater cumulative exposure to toxic chemicals. Older moms have increased risk of pregnancy complications, and as a woman’s eggs age, they are more likely to carry genetic changes that can affect fetal development.