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Microb Ecol Health Dis. 2015 Mar 12;26:26914. doi: 10.3402/mehd.v26.26914. eCollection 2015.

Gut bacteria in children with autism spectrum disorders: challenges and promise of studying how a complex community influences a complex disease.

Author information

1
Swette Center for Environmental Biotechnology, Biodesign Institute, Arizona State University, Tempe, AZ, USA.
2
School of Sustainable Engineering and The Built Environment, Arizona State University, Tempe, AZ, USA; dr.rosy@asu.edu.
3
Department of Medicine, University of Colorado-Denver, Aurora, CO, USA.
4
School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, AZ, USA.

Abstract

Recent studies suggest a role for the microbiota in autism spectrum disorders (ASD), potentially arising from their role in modulating the immune system and gastrointestinal (GI) function or from gut-brain interactions dependent or independent from the immune system. GI problems such as chronic constipation and/or diarrhea are common in children with ASD, and significantly worsen their behavior and their quality of life. Here we first summarize previously published data supporting that GI dysfunction is common in individuals with ASD and the role of the microbiota in ASD. Second, by comparing with other publically available microbiome datasets, we provide some evidence that the shifted microbiota can be a result of westernization and that this shift could also be framing an altered immune system. Third, we explore the possibility that gut-brain interactions could also be a direct result of microbially produced metabolites.

KEYWORDS:

GI problems; Prevotella; autism; gut microbiome; gut microflora; gut–brain interaction; meta-analysis; next-generation sequencing

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