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University of Toledo researchers have found that pyrethroids, which have both commercial and industrial uses for controlling mosquitoes and other insects, may be linked to an increased risk of neurodevelopmental disorders (NDD), such as autism.

The connection is suspected even at EPA levels, considered safe for humans. “Our study, however, adds to the evidence that these chemicals might not be as safe for children and pregnant women as we once believed,” said James Burkett, assistant professor of neuroscience in the University of Toledo College of Medicine and Life Sciences.

The study done with mice litters, was published in PNAS. Using the mouse model, researchers wrote that they showed that, “low-dose developmental exposure to the pyrethroid deltamethrin causes an NDD-relevant behavioral phenotype, along with related changes in the dopamine system in the brain. These findings suggest a causal role for developmental pyrethroid pesticide exposure in NDD risk.”



University of Toledo April 25, 2023

PNAS April 25, 2023

Study Finds April 26, 2023

Originally posted:

Author: Dr. Mercola