Developmental exposures to ultrafine particle air pollution reduces early testosterone levels and adult male social novelty preference: Risk for children's sex-biased neurobehavioral disorders

Neurotoxicology
Marissa SobolewskiDeborah A Cory-Slechta

Abstract

Epidemiological studies have reported associations of air pollution exposures with various neurodevelopmental disorders such as autism spectrum disorder (ASD), attention deficit and schizophrenia, all of which are male-biased in prevalence. Our studies of early postnatal exposure of mice to the ultrafine particle (UFP) component of air pollution, considered the most reactive component, provide support for these epidemiological associations, demonstrating male-specific or male-biased neuropathological changes and cognitive and impulsivity deficits consistent with these disorders. Since these neurodevelopmental disorders also include altered social behavior and communication, the current study examined the ability of developmental UFP exposure to reproduce these social behavior deficits and to determine whether any observed alterations reflected changes in steroid hormone concentrations. Elevated plus maze, social conditioned place preference, and social novelty preference were examined in adult mice that had been exposed to concentrated (10-20x) ambient UFPs averaging approximately 45 ug/m3 particle mass concentrations from postnatal day (PND) 4-7 and 10-13 for 4 h/day. Changes in serum testosterone (T) and corticosterone where ...Continue Reading

Citations

Feb 20, 2019·Particle and Fibre Toxicology·Keith Morris-SchafferDeborah A Cory-Slechta
Dec 12, 2019·Frontiers in Neuroscience·Ankita Salvi, Samina Salim
Jan 8, 2019·Particle and Fibre Toxicology·Keith Morris-SchafferDeborah A Cory-Slechta
Jul 1, 2021·Environmental Health : a Global Access Science Source·Chelsea A Weitekamp, Hans A Hofmann
Sep 17, 2021·Epigenetics : Official Journal of the DNA Methylation Society·Katharina MattonetRobert Kumsta

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