Cited by 209Autism Spectrum Disorder ResearchChild Nutrition and Feeding IssuesGut microbiota and health

Gastrointestinal issues in autism spectrum disorder

Hsiao, Elaine Y·2014·Harvard Review of Psychiatry

Abstract

While autism spectrum disorder (ASD) is characterized by communication impairments, social abnormalities, and stereotypic behaviors, several medical comorbidities are observed in autistic individuals. Of these, gastrointestinal (GI) abnormalities are of particular interest given their reported prevalence and correlation with the severity of core autism-related behavioral abnormalities. This review discusses the GI pathologies seen in ASD individuals and the association of particular GI conditions with known genetic and environmental risk factors for autism. It further addresses how GI abnormalities can affect the neuropathological and behavioral features of ASD, as well as the development of autism-related endophenotypes such as immune dysregulation, hyperserotonemia, and metabolic dysfunction. Finally, it presents emerging evidence for a gut-brain connection in autism, wherein GI dysfunction may contribute to the pathogenesis or severity of ASD symptoms.

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Crossref · 10.1097/hrp.0000000000000029

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Authors
Hsiao, E. Y.
Affiliations
California Institute of Technology (US)
Corresponding author
Hsiao, Elaine Y
Venue
Harvard Review of Psychiatry
Published
2014-03
Volume
22
Issue
2
Pages
104-111
ISSN
1067-3229 (ISSN-L)
OpenAlex
W2087373760
Cited by
209
References
92
Citations by year
2026: 15 · 2025: 19 · 2024: 16 · 2023: 12 · 2022: 23 · 2021: 22 · 2020: 23 · 2019: 20 · 2018: 16 · 2017: 13 · 2016: 11 · 2015: 13 · 2014: 6
FWCI
1.39
Type
journal article
Language
en
Open access
closed
Locations
  • Harvard Review of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • CaltechAUTHORS (California Institute of Technology) (submittedVersion)
Funders
National Institute of Mental Health (F31MH090749)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
Keywords
autism spectrum disorder, gastrointestinal anomalies, autism comorbidity, gut-brain axis, immune dysregulation, hyperserotonemia, metabolic dysfunction, endophenotypes, genetic risk factors, environmental risk factors, autism pathogenesis, behavioral symptoms
MeSH terms
Child Development Disorders, Pervasive, Gastrointestinal Diseases, Humans, Endophenotypes

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