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Pesticide exposure may contribute to ADHD, study finds

Date:
May 17, 2010
Source:
University of Montreal
Summary:
A team of scientists has discovered that exposure to organophosphate pesticides is associated with increased risk of attention-deficit hyperactivity disorder in children.

Pesticide warning sign on a park lawn.
Credit: iStockphoto

A team of scientists from the University of Montreal and Harvard University has discovered that exposure to organophosphate pesticides may be 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 of the University of Montreal Department of Environmental and Occupational Health and 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."

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

The study was authored by Maryse F. Bouchard of the University of Montreal and Harvard University, David C. Bellinger, Robert O. Wright, and Marc G. Weisskopf of Harvard University.


Story Source:

The above story is based on materials provided by University of Montreal. Note: Materials may be edited for content and length.


Journal Reference:

  1. Maryse F. Bouchard, David C. Bellinger, Robert O. Wright, and Marc G. Weisskopf. Attention-Deficit/Hyperactivity Disorder and Urinary Metabolites of Organophosphate Pesticides. Pediatrics, 2010; DOI: 10.1542/peds.2009-3058

Cite This Page:

University of Montreal. "Pesticide exposure may contribute to ADHD, study finds." ScienceDaily. ScienceDaily, 17 May 2010. <www.sciencedaily.com/releases/2010/05/100517132846.htm>.
University of Montreal. (2010, May 17). Pesticide exposure may contribute to ADHD, study finds. ScienceDaily. Retrieved September 22, 2014 from www.sciencedaily.com/releases/2010/05/100517132846.htm
University of Montreal. "Pesticide exposure may contribute to ADHD, study finds." ScienceDaily. www.sciencedaily.com/releases/2010/05/100517132846.htm (accessed September 22, 2014).

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