Oral microbiome activity in children with autism spectrum disorder

Steven Hicks, Richard Uhlig, Parisa Afshari, Jeremy Williams, Maria Chroneos, Cheryl Tierney-Aves, Kayla Wagner, Frank A. Middleton

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Autism spectrum disorder (ASD) is associated with several oropharyngeal abnormalities, including buccal sensory sensitivity, taste and texture aversions, speech apraxia, and salivary transcriptome alterations. Furthermore, the oropharynx represents the sole entry point to the gastrointestinal (GI) tract. GI disturbances and alterations in the GI microbiome are established features of ASD, and may impact behavior through the “microbial-gut-brain axis.” Most studies of the ASD microbiome have used fecal samples. Here, we identified changes in the salivary microbiome of children aged 2–6 years across three developmental profiles: ASD (n = 180), nonautistic developmental delay (DD; n = 60), and typically developing (TD; n = 106) children. After RNA extraction and shotgun sequencing, actively transcribing taxa were quantified and tested for differences between groups and within ASD endophenotypes. A total of 12 taxa were altered between the developmental groups and 28 taxa were identified that distinguished ASD patients with and without GI disturbance, providing further evidence for the role of the gut-brain axis in ASD. Group classification accuracy was visualized with receiver operating characteristic curves and validated using a 50/50 hold-out procedure. Five microbial ratios distinguished ASD from TD participants (79.5% accuracy), three distinguished ASD from DD (76.5%), and three distinguished ASD children with/without GI disturbance (85.7%). Taxonomic pathways were assessed using the Kyoto Encyclopedia of Genes and Genomes microbial database and compared with one-way analysis of variance, revealing significant differences within energy metabolism and lysine degradation. Together, these results indicate that GI microbiome disruption in ASD extends to the oropharynx, and suggests oral microbiome profiling as a potential tool to evaluate ASD status. Autism Res 2018, 11: 1286–1299.

Original languageEnglish (US)
Pages (from-to)1286-1299
Number of pages14
JournalAutism Research
Volume11
Issue number9
DOIs
StatePublished - Sep 1 2018

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Microbiota
Oropharynx
Autism Spectrum Disorder
Microbial Genes
Microbial Genome
Encyclopedias
Endophenotypes
Apraxias
Cheek
Firearms
Brain
Autistic Disorder
Transcriptome
ROC Curve
Energy Metabolism
Lysine
Gastrointestinal Tract
Analysis of Variance
Databases
RNA

All Science Journal Classification (ASJC) codes

  • Neuroscience(all)
  • Clinical Neurology
  • Genetics(clinical)

Cite this

Hicks, S., Uhlig, R., Afshari, P., Williams, J., Chroneos, M., Tierney-Aves, C., ... Middleton, F. A. (2018). Oral microbiome activity in children with autism spectrum disorder. Autism Research, 11(9), 1286-1299. https://doi.org/10.1002/aur.1972
Hicks, Steven ; Uhlig, Richard ; Afshari, Parisa ; Williams, Jeremy ; Chroneos, Maria ; Tierney-Aves, Cheryl ; Wagner, Kayla ; Middleton, Frank A. / Oral microbiome activity in children with autism spectrum disorder. In: Autism Research. 2018 ; Vol. 11, No. 9. pp. 1286-1299.
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Hicks, S, Uhlig, R, Afshari, P, Williams, J, Chroneos, M, Tierney-Aves, C, Wagner, K & Middleton, FA 2018, 'Oral microbiome activity in children with autism spectrum disorder', Autism Research, vol. 11, no. 9, pp. 1286-1299. https://doi.org/10.1002/aur.1972

Oral microbiome activity in children with autism spectrum disorder. / Hicks, Steven; Uhlig, Richard; Afshari, Parisa; Williams, Jeremy; Chroneos, Maria; Tierney-Aves, Cheryl; Wagner, Kayla; Middleton, Frank A.

In: Autism Research, Vol. 11, No. 9, 01.09.2018, p. 1286-1299.

Research output: Contribution to journalArticle

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Hicks S, Uhlig R, Afshari P, Williams J, Chroneos M, Tierney-Aves C et al. Oral microbiome activity in children with autism spectrum disorder. Autism Research. 2018 Sep 1;11(9):1286-1299. https://doi.org/10.1002/aur.1972