Brief Report: Whole Blood Serotonin Levels and Gastrointestinal Symptoms in Autism Spectrum Disorder

Sarah Marler, Bradley J. Ferguson, Evon Batey Lee, Brittany Peters, Kent C. Williams, Erin McDonnell, Eric A. Macklin, Pat Levitt, Catherine Hagan Gillespie, George M. Anderson, Kara Gross Margolis, David Q. Beversdorf, Jeremy Veenstra-VanderWeele

Research output: Contribution to journalArticlepeer-review

Abstract

Elevated whole blood serotonin levels are observed in more than 25 % of children with autism spectrum disorder (ASD). Co-occurring gastrointestinal (GI) symptoms are also common in ASD but have not previously been examined in relationship with hyperserotonemia, despite the synthesis of serotonin in the gut. In 82 children and adolescents with ASD, we observed a correlation between a quantitative measure of lower GI symptoms and whole blood serotonin levels. No significant association was seen between functional constipation diagnosis and serotonin levels in the hyperserotonemia range, suggesting that this correlation is not driven by a single subgroup. More specific assessment of gut function, including the microbiome, will be necessary to evaluate the contribution of gut physiology to serotonin levels in ASD.

Original languageEnglish (US)
Pages (from-to)1124-1130
Number of pages7
JournalJournal of Autism and Developmental Disorders
Volume46
Issue number3
DOIs
StatePublished - Mar 1 2016

Keywords

  • 5-HT
  • Autism Treatment Network
  • Gastrointestinal (GI)
  • IL-6
  • Medical comorbidities
  • Serotonin

ASJC Scopus subject areas

  • Developmental and Educational Psychology

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