PreprintCited by 44Gut microbiota and healthAutism Spectrum Disorder ResearchGastrointestinal motility and disorders

Microbiome-Gut-Mucosal-Immune-Brain Axis and Autism Spectrum Disorder (ASD): A Novel Proposal of the Role of Gut Microbiome in ASD Aetiology

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De Sales-Millán, Amapola, Aguirre-Garrido, José Félix, González-Cervantes, Rina María, Velázquez-Aragón, Jose Antonio·2023·Behavioral Sciences

Abstract

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder characterised by poor social interaction and communication, as well as restricted and stereotyped interests. Due of the high prevalence of gastrointestinal disorders in individuals with ASD, researchers have investigated the gut microbiota as a potential contributor to its aetiology. The relationship between the microbiome, gut, and brain (microbiome-gut-brain axis) has been acknowledged as a key factor in modulating brain function and social behaviour, but its connection to the aetiology of ASD is not well understood. Recently, there has been increasing attention on the relationship between the immune system, gastrointestinal disorders, and neurological issues in ASD, particularly in relation to the loss of specific species or a decrease in microbial diversity. It focuses on how gut microbiota dysbiosis can affect gut permeability, immune function, and microbiota metabolites in ASD. Although a very complete study suggests that dysbiosis is a consequence of the disease and that it has practically no effect on autistic manifestations. This is a review of the relationship between the immune system, microbial diversity, and the microbiome-gut-brain axis in the development of autistic symptoms severity and, a proposal of a novel role of gut microbiome in ASD, where dysbiosis is a consequence of ASD-related behaviour and where dysbiosis in turn accentuates the autistic manifestations of the patients via microbiome-gut-brain axis in a feedback circuit.

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  • The most notable alterations in ASD gut microbiota include different prevalences of Bacteroidetes/Firmicutes, Bifidobacterium, Faecalibacterium, Clostridium, Enterobacteriaceae, Verrucomicrobia, Fusobacteria, Escherichia coli, Lactobacillus, Streptococcus, Enterococcus, Prevotella, and Akkermansia.

    “The most notable alterations included the different prevalences of Bacteroidetes/Firmicutes, Bifidobacterium, Faecalibacterium, Clostridium, Enterobacteriaceae, Verrucomicrobia, Fusobacteria, Escherichia coli, Lactobacillus, Streptococcus, Enterococcus, Prevotella, and Akkermansia.”

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Authors
De Sales-Millán, A., Aguirre-Garrido, J. F., González-Cervantes, R. M., & Velázquez-Aragón, J. A.
Venue
Behavioral Sciences
Publisher
MDPI AG
Published
2023-05-17
Volume
13
Issue
7
Pages
548-548
ISSN
2076-328X (ISSN-L)
OpenAlex
W4382983015
Cited by
44
References
166
Citations by year
2026: 15 · 2025: 17 · 2024: 11 · 2023: 1
FWCI
1.16
Type
journal article
Language
en
Open access
Locations
  • Behavioral Sciences (publishedVersion, cc-by)
  • Preprints.org (acceptedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Instituto Nacional de Pediatria (Recursos Fiscales 2022-2023)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
Keywords
autism spectrum disorder, gut microbiota, microbiome-gut-brain axis, gut dysbiosis, intestinal permeability, immune function, microbial diversity, gastrointestinal diseases, microbiota metabolites, neurodevelopmental disorders

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