Cited by 499Autism Spectrum Disorder ResearchGenetics and Neurodevelopmental DisordersChild Nutrition and Feeding Issues

Minicolumnar abnormalities in autism

Casanova, Manuel F., van Kooten, Imke A. J., Switala, Andrew E., van Engeland, Herman, Heinsen, Helmut, Steinbusch, Harry W. M., Hof, Patrick R., Trippe, Juan +2 more·2006·Acta Neuropathologica

Abstract

Autism is characterized by qualitative abnormalities in behavior and higher order cognitive functions. Minicolumnar irregularities observed in autism provide a neurologically sound localization to observed clinical and anatomical abnormalities. This study corroborates the initial reports of a minicolumnopathy in autism within an independent sample. The patient population consisted of six age-matched pairs of patients (DSM-IV-TR and ADI-R diagnosed) and controls. Digital micrographs were taken from cortical areas S1, 4, 9, and 17. The image analysis produced estimates of minicolumnar width (CW), mean interneuronal distance, variability in CW (V (CW)), cross section of Nissl-stained somata, boundary length of stained somata per unit area, and the planar convexity. On average CW was 27.2 microm in controls and 25.7 microm in autistic patients (P = 0.0234). Mean neuron and nucleolar cross sections were found to be smaller in autistic cases compared to controls, while neuron density in autism exceeded the comparison group by 23%. Analysis of inter- and intracluster distances of a Delaunay triangulation suggests that the increased cell density is the result of a greater number of minicolumns, otherwise the number of cells per minicolumns appears normal. A reduction in both somatic and nucleolar cross sections could reflect a bias towards shorter connecting fibers, which favors local computation at the expense of inter-areal and callosal connectivity.

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Crossref · 10.1007/s00401-006-0085-5

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  • Our findings are not inconsistent with the mini-column hypothesis of autism.

    “Our findings are not inconsistent with the mini-column hypothesis of autism 20 which postulates that symmetrical proliferation of periventricular progenitor cells leads to an increased number of mini-columns, which may have a role in the pathogenesis of SA hyper-expansion and later emergence of the disorder 18,21 .”

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Authors
Casanova, M. F., van Kooten, I. A. J., Switala, A. E., van Engeland, H., Heinsen, H., Steinbusch, H. W. M., Hof, P. R., Trippe, J., Stone, J., & Schmitz, C.
Affiliations
  • University of Louisville (US)
  • University of Würzburg (DE)
  • Maastricht University (NL)
  • Icahn School of Medicine at Mount Sinai (US)
Corresponding author
Casanova, Manuel F.
Venue
Acta Neuropathologica
Published
2006-07-04
Volume
112
Issue
3
Pages
287-303
ISSN
  • 0001-6322 (ISSN-L)
  • 1432-0533
OpenAlex
W2054390925
Cited by
499
References
9
Citations by year
2026: 6 · 2025: 6 · 2024: 14 · 2023: 15 · 2022: 15 · 2021: 18 · 2020: 22 · 2019: 20 · 2018: 24 · 2017: 31 · 2016: 41 · 2015: 43 · 2014: 29 · 2013: 48 · 2012: 36
FWCI
11.01
Type
journal article
Language
en
Open access
closed
Locations
  • Acta Neuropathologica (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Autism Speaks (AS6288)
  • National Institute of Mental Health (MH66392, R01MH062654, P50MH066392, R01MH061606, MH 61606, MH62654, R01MH069991, MH 69991)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Health Sciences › Medicine › Psychiatry and Mental health › Child Nutrition and Feeding Issues
Keywords
autism spectrum disorder, neuronal density, neuron size, cortical connectivity, local computation
MeSH terms
Adolescent, Adult, Algorithms, Autistic Disorder, Brain, Cell Count, Cell Nucleolus, Child, Child, Preschool, Female, Humans, Image Processing, Computer-Assisted, Interneurons, Male, Motor Cortex, Somatosensory Cortex, Tissue Fixation, Pyramidal Cells, Neocortex, Cell Size

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