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Pesticide exposure may contribute to ADHD

Imprimer

A team of scientists from the Université de Montréal and Harvard University have discovered that exposure to organophosphate pesticides is associated with increased risk of Attention-Deficit Hyperactivity Disorder (ADHD) in children.

Published in the journal Pediatrics, the investigation found a connection between exposure pesticides and the presence of symptoms of ADHD. The study focused on 1,139 children from the general U.S. population and measured pesticide levels in their urine. The authors conclude that exposure to organophosphate pesticides, at levels common among U.S. children, may contribute to a diagnosis of ADHD.

“Previous studies have shown that exposure to some organophosphate compounds cause hyperactivity and cognitive deficits in animals,” says lead author Maryse F. Bouchard, a professor at the Université de Montréal Department of Environmental and Occupational Health and scientist at the Sainte-Justine Hospital Research Center. “Our study found that exposure to organophosphates in developing children might have effects on neural systems and could contribute to ADHD behaviors, such as inattention, hyperactivity, and impulsivity.”

Partners in research:
This study was supported by the Canadian Institutes for Health Research and the National Institute of Environmental Health Sciences.

About the study:
The study, “Attention-Deficit/Hyperactivity Disorder and Urinary Metabolites of Organophosphate Pesticides,” published in Pediatrics, was authored Maryse F. Bouchard of the Université de Montréal and Harvard University, David C. Bellinger, Robert O. Wright, and Marc G. Weisskopf of Harvard University.

On the Web:

Media contact:
Sylvain-Jacques Desjardins
International press attaché
Université de Montréal
Phone: 514-343-7593
Email: sylvain-jacques.desjardins@umontreal.ca

 

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