4.6 Review

The enteric nervous system deficits in autism spectrum disorder

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FRONTIERS IN NEUROSCIENCE
卷 17, 期 -, 页码 -

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FRONTIERS MEDIA SA
DOI: 10.3389/fnins.2023.1101071

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autism spectrum disorder; enteric nervous system; gut motility; genetical factor; environmental factor

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Gastrointestinal disorders frequently coexist with autism spectrum disorder (ASD), and the severity of core behavioral deficits in autism is closely related to abnormalities in these issues. The enteric nervous system (ENS) plays a vital role in regulating gut functions, including gastrointestinal motility. Dysfunctional wiring in the ENS not only leads to various gastrointestinal issues, but also correlates with an increasing number of central nervous system (CNS) disorders, such as ASD. However, it remains unclear whether the gastrointestinal dysfunctions are a consequence of ASD or if they directly contribute to its pathogenesis. This review focuses on the deficits in the ENS associated with ASD, highlights high-risk genes for ASD expressed in the gut and implicated in gastrointestinal dysfunction, and provides an overview of environmental factors associated with the gastrointestinal tract in individuals with autism.
Gastrointestinal (GI) disorders are common comorbidities in individuals with autism spectrum disorder (ASD), and abnormalities in these issues have been found to be closely related to the severity of core behavioral deficits in autism. The enteric nervous system (ENS) plays a crucial role in regulating various aspects of gut functions, including gastrointestinal motility. Dysfunctional wiring in the ENS not only results in various gastrointestinal issues, but also correlates with an increasing number of central nervous system (CNS) disorders, such as ASD. However, it remains unclear whether the gastrointestinal dysfunctions are a consequence of ASD or if they directly contribute to its pathogenesis. This review focuses on the deficits in the ENS associated with ASD, and highlights several high-risk genes for ASD, which are expressed widely in the gut and implicated in gastrointestinal dysfunction among both animal models and human patients with ASD. Furthermore, we provide a brief overview of environmental factors associated with gastrointestinal tract in individuals with autism. This could offer fresh perspectives on our understanding of ASD.

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