alexa Maternal diet rich in omega-6 polyunsaturated fatty acids during gestation and lactation produces autistic-like sociability deficits in adult offspring.
Psychiatry

Psychiatry

Journal of Depression and Anxiety

Author(s): Jones KL, Will MJ, Hecht PM, Parker CL, Beversdorf DQ

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Abstract Multiple studies have reported prenatal stress as a potential risk factor for the development of autism spectrum disorder (ASD). In rodents, a significant reduction in sociability is seen in prenatally stressed offspring of genetically stress-susceptible dams. Certain dietary factors that contribute to stress reactivity may, therefore, exacerbate prenatal stress-mediated behavioral changes in adult offspring. Adults with a diet rich in omega-6 polyunsaturated fatty acids (PUFAs) display increased stress reactivity. In the current study, the effects of prenatal diet and prenatal stress on social behavior in adult offspring mice were examined. Pregnant C57BL/6J dams received either chronic variable stress or no stress, and were also placed on a control diet or a diet rich in omega-6 PUFAs, in a 2×2 design. We subsequently tested the adult offspring for sociability, anxiety, and locomotor behaviors using a 3-chambered social approach task, an elevated-plus maze, an open field task and a rotarod task. Results indicated that a maternal diet rich in omega-6 PUFAs during gestation and lactation produce changes in sociability consistent with those observed in ASD. Additionally, offspring exposed to a diet rich in omega-6 PUFAs during gestation and lactation had increased levels of anxiety in the elevated-plus maze. Prenatal stress had no effect on offspring behavior. These findings provide evidence for a possible environmental risk factor that contributes to the production of autistic-like behavior in mice. Copyright © 2012 Elsevier B.V. All rights reserved. This article was published in Behav Brain Res and referenced in Journal of Depression and Anxiety

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