Evidence map›Paper›PMID 33824197›Full record

ArticlemSystems2021

The Gut Microbiome in Autism: Study-Site Effects and Longitudinal Analysis of Behavior Change.

Jennifer Fouquier, Nancy Moreno Huizar, Jody Donnelly, Cody Glickman, Dae-Wook Kang, Juan Maldonado, Rachel A Jones, Kimberly Johnson, James B Adams, Rosa Krajmalnik-Brown and 1 more

Open access · goldAbstract read
In one paragraph

Article in mSystems, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.6field-weighted citation impact, top 6% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 57 citations in OpenAlex.

  1. Review
  2. Article
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  4. Article
  5. The Neuroimmunology of Autism.Molecular neurobiology · 2025
    Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 4 institutions in 1 country.

Jennifer Fouquier *Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA.ORCID https://orcid.org/0000-0002-0975-8235
Nancy Moreno Huizar *Department of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA.
Jody DonnellyDepartment of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA.
Cody GlickmanComputational Bioscience Graduate Program, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA.
Dae-Wook KangDepartment of Civil and Environmental Engineering, The University of Toledo, Toledo, Ohio, USA.ORCID https://orcid.org/0000-0002-2585-1974
Juan MaldonadoKE Genomics Core, Arizona State University, Tempe, Arizona, USA.
Rachel A JonesDepartment of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA.
Kimberly JohnsonMary Bridge Children's Developmental Behavioral Pediatrics, Tacoma, Washington, USA.
James B AdamsSchool for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona, USA.
Rosa Krajmalnik-BrownBiodesign Swette Center for Environmental Biotechnology, Arizona State University, Tempe, Arizona, USA.
Catherine LozuponeDepartment of Medicine, University of Colorado, Anschutz Medical Campus, Aurora, Colorado, USA catherine.lozupone@cuanschutz.edu.ORCID https://orcid.org/0000-0003-4786-7202
University of Colorado Anschutz Medical Campus · USArizona State University · USMary Bridge Children's Health Center · USUniversity of Toledo · US

Funding

NIH Prior Approval Process ProfessionalUL1TR002535 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2018 to 2022
$51.1M
Computational Bioscience Program Training GrantT15LM009451 · NLM · UNIVERSITY OF COLORADO DENVER · PI Katherina Kechris-Mays, Arjun Krishnan · 2007 to 2026
$11.7M
NCATS NIH HHS UL1 TR002535NLM NIH HHS T15 LM009451
6 · The paper itself

Abstract

Research relating gut microbiome composition to autism spectrum disorders (ASD) has produced inconsistent results, indicative of the disorder's complexity and the need for more sophisticated experimental designs. We address this need by (i) comparing gut microbiome composition between individuals with ASD and neurotypical controls in Arizona and Colorado using standardized DNA extraction and sequencing methods at both locations and (ii) longitudinally evaluating the gut microbiome's relationship to autism behavioral severity, diet, and gastrointestinal symptoms. Gut microbiome composition differed between individuals in Arizona and individuals in Colorado, and gastrointestinal symptoms were significantly higher in ASD individuals than in neurotypical individuals in Arizona but not in Colorado. Gut microbiome composition was significantly associated with ASD while controlling for study-site location but not when controlling for gastrointestinal symptoms. This suggests that non-ASD-related study site differences in gut microbiome composition and different degrees of gastrointestinal symptoms involvement with ASD between sites may contribute to inconsistent results in the literature regarding the association between gut microbiome composition and ASD. In the longitudinal analysis, we found that difference in levels of lethargy/social withdrawal measured in individuals at different time points correlated with the degree of change in gut microbiome composition and that a worsening of inappropriate speech between time points was associated with decreased gut microbiome diversity. This relationship between changes in the gut microbiome composition within individuals and ASD behavioral severity metrics indicates that longitudinal study designs may be useful for exploring microbial drivers of ASD severity when substantial variability exists in baseline microbiome compositions across individuals and geographical regions.

Indexed as

16S rRNA geneautismautism spectrum disorderbehaviorbehavioral severitygutlongitudinal study designmicrobiomemicrobiotanext-generation sequencing

Identifiers

PMID33824197
PMCPMC8546984
OpenAlexW3144311771

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.