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A mechanistic view on the neurotoxic effects of air pollution on central nervous system: risk for autism and neurodegenerative diseases

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Abstract

Many reports have shown a strong association between exposure to neurotoxic air pollutants like heavy metal and particulate matter (PM) as an active participant and neurological disorders. While the effects of these toxic pollutants on cardiopulmonary morbidity have principally been studied, growing evidence has shown that exposure to polluted air is associated with memory impairment, communication deficits, and anxiety/depression among all ages. So, these toxic pollutants in the environment increase the risk of neurodegenerative disease, ischemia, and autism spectrum disorders (ASD). The precise mechanisms in which air pollutants lead to communicative inability, social inability, and declined cognition have remained unknown. Various animal model studies show that amyloid precursor protein (APP), processing, oxidant/antioxidant balance, and inflammation pathways change following the exposure to constituents of polluted air. In the present review study, we collect the probable molecular mechanisms of deleterious CNS effects in response to various air pollutants.

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Acknowledgments

The author is thankful for the Medical Plants Research Center, Shahrekord University of Medical Sciences, Shahrekord, Iran, for supporting this study.

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Project administration, writing—original draft, writing—review and editing, approval of manuscript for publication: Sahreh Shabani

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Correspondence to Sahreh Shabani.

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All procedures were carried out in accordance with the regulations of the Shahrekord University of Medical Sciences.

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The author declares that there is no conflict of interest.

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Responsible Editor: Mohamed M. Abdel-Daim

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Shabani, S. A mechanistic view on the neurotoxic effects of air pollution on central nervous system: risk for autism and neurodegenerative diseases. Environ Sci Pollut Res 28, 6349–6373 (2021). https://doi.org/10.1007/s11356-020-11620-3

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  • DOI: https://doi.org/10.1007/s11356-020-11620-3

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