Whole blood serotonin in autistic and normal subjects
Abstract
Whole blood serotonin and tryptophan were measured in 87 normal subjects and in 40 autistic subjects. Whole blood serotonin concentrations (mean +/- SE) were significantly higher in drug-free (N = 21) autistics (205 +/- 16 ng/ml) than in normals (136 +/- 5.4 ng/ml). The Gaussian distribution of serotonin levels in the unmedicated autistic group suggests the elevation was not due to a subgroup of autistic subjects. Autistics medicated with anticonvulsants or neuroleptics had significantly lower serotonin levels than did drug-free autistic subjects. Whole blood tryptophan levels and platelet counts were similar in the autistic and normal groups. The possible causes of the hyperserotonemia of autism are discussed.
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In patients with ASD, altered function and metabolism of neurotransmitters such as 5-HT and catecholamines, and dysfunction of the serotonergic system, have been reported to contribute to symptomatology.
“In patients with ASD, altered function and metabolism of neurotransmitters, such as 5′-HT and catecholamines, and dysfunction of the serotonergic system have been reported to contribute to symptomatology [188,192,193,194,195,196].”
From Autism, Gastrointestinal Symptoms and Modulation of Gut Microbiota by Nutritional Interventions (2019) · cites this paper as [195]
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- Authors
- Anderson, G. M., Freedman, D. X., Cohen, D. J., Volkmar, F. R., Hoder, E. L., McPhedran, P., Minderaa, R. B., Hansen, C. R., & Young, J. G.
- Affiliations
- University of California, Los Angeles (US)
- Yale University (US)
- Corresponding author
- Anderson, George M.
- Venue
- Journal of Child Psychology and Psychiatry
- Publisher
- Wiley
- Published
- 1987-11
- Volume
- 28
- Issue
- 6
- Pages
- 885-900
- ISSN
- 0021-9630 (ISSN-L)
- 1469-7610
- OpenAlex
- W2128971418
- Cited by
- 313
- References
- 52
- Citations by year
- 2026: 2 · 2025: 5 · 2024: 8 · 2023: 3 · 2022: 3 · 2021: 5 · 2020: 7 · 2019: 8 · 2018: 5 · 2017: 3 · 2016: 6 · 2015: 10 · 2014: 13 · 2013: 15 · 2012: 12
- FWCI
- 4.65
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Child Psychology and Psychiatry (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Institute of Mental Health (MH-24393, MH30929)
- National Center for Research Resources (RR00125)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
- Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
- Keywords
- autism spectrum disorder, whole blood serotonin, tryptophan, hyperserotonemia, antiepileptic drugs, antipsychotic drugs, platelet count
- MeSH terms
- Adolescent, Adult, Anticonvulsants, Autistic Disorder, Blood Platelets, Child, Child, Preschool, Chromatography, High Pressure Liquid, Female, Haloperidol, Humans, Infant, Male, Platelet Count, Serotonin, Sex Factors, Thioridazine, Tryptophan
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