Cited by 141Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersNeurotransmitter Receptor Influence on Behavior

Effects of Diagnosis, Race, and Puberty on Platelet Serotonin Levels in Autism and Mental Retardation

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MCBRIDE, P. ANNE, ANDERSON, GEORGE M., HERTZIG, MARGARET E., SNOW, MARGARET E., THOMPSON, SETH M., KHAIT, VADIM D., SHAPIRO, THEODORE, COHEN, DONALD J.·1998·Journal of the American Academy of Child & Adolescent Psychiatry

Abstract

OBJECTIVE: To reevaluate platelet serotonin (5-HT) levels in autism, measuring and controlling for effects of race and puberty. The specificity of hyperserotonemia for autism versus cognitive impairment is also assessed. METHOD: Platelet 5-HT levels were measured in 77 individuals, aged 2 through 37 years, with autistic disorder; 65 normal controls; and 22 mentally retarded or otherwise cognitively impaired (MR/CI) prepubertal children. Effects of diagnosis, race, and pubertal status were evaluated by analysis of variance in separate pre- and postpubertal groups. 5-HT levels were expressed as ng/mL blood and ng/microL platelet volume. RESULTS: Among prepubertal children, significant effects of diagnosis (ng/mL; F2,109 = 5.9, p = .004) and race (F2,109 = 14.7, p < .0005) were found. Autistic youngsters had significantly higher 5-HT concentrations than controls, although the elevation (25%) was less than typically reported; MR/CI children had levels very similar to those of controls. White children had significantly lower 5-HT levels than black or Latino youngsters, regardless of diagnosis. Diagnosis and race effects were nonsignificant in the postpubertal group. Postpubertal subjects had lower 5-HT concentrations than prepubertal subjects (ng/mL; F1,114 = 28.5, p < .0005). CONCLUSIONS: The data underscore the importance of matching for race and pubertal status in neuropsychiatric research and suggest that the prevalence of hyperserotonemia in autistic individuals may have been overestimated because of a failure to control for both variables. Hyperserotonemia was not found in MR/CI youngsters without autistic features.

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Crossref · 10.1097/00004583-199807000-00017

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Authors
MCBRIDE, P. A., ANDERSON, G. M., HERTZIG, M. E., SNOW, M. E., THOMPSON, S. M., KHAIT, V. D., SHAPIRO, T., & COHEN, D. J.
Affiliations
  • Cornell University (US)
  • Yale University (US)
Venue
Journal of the American Academy of Child & Adolescent Psychiatry
Publisher
Elsevier BV
Published
1998-07
Volume
37
Issue
7
Pages
767-776
ISSN
0890-8567 (ISSN-L)
OpenAlex
W1989064214
Cited by
141
References
44
Citations by year
2025: 2 · 2024: 3 · 2023: 2 · 2022: 2 · 2021: 3 · 2020: 5 · 2019: 7 · 2018: 3 · 2017: 5 · 2016: 1 · 2015: 4 · 2014: 9 · 2013: 10 · 2012: 5
FWCI
3.40
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Academy of Child & Adolescent Psychiatry (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
  • NIMH (MH44177, MH30929)
  • Cornell Children's Clinical Research Center (RR06020)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
platelet serotonin, hyperserotonemia, autism spectrum disorder, intellectual disability, race, puberty, prepubertal children, diagnostic specificity
MeSH terms
Adolescent, Adult, Autistic Disorder, Blood Platelets, Child, Child, Preschool, Female, Humans, Male, Intellectual Disability, Puberty, Serotonin, Biomarkers, Racial Groups

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