Cited by 18Williams Syndrome ResearchGenetics and Neurodevelopmental DisordersAutism Spectrum Disorder Research

Neuron density is decreased in the prefrontal cortex in Williams syndrome

Lew, Caroline Horton, Brown, Chelsea, Bellugi, Ursula, Semendeferi, Katerina·2017·Autism Research

Abstract

Williams Syndrome (WS) is a rare neurodevelopmental disorder associated with a hemideletion in chromosome 7, which manifests a distinct behavioral phenotype characterized by a hyperaffiliative social drive, in striking contrast to the social avoidance behaviors that are common in Autism Spectrum Disorder (ASD). MRI studies have observed structural and functional abnormalities in WS cortex, including the prefrontal cortex (PFC), a region implicated in social cognition. This study utilizes the Bellugi Williams Syndrome Brain Collection, a unique resource that comprises the largest WS postmortem brain collection in existence, and is the first to quantitatively examine WS PFC cytoarchitecture. We measured neuron density in layers II/III and V/VI of five cortical areas: PFC areas BA 10 and BA 11, primary motor BA 4, primary somatosensory BA 3, and visual area BA 18 in six matched pairs of WS and typically developing (TD) controls. Neuron density in PFC was lower in WS relative to TD, with layers V/VI demonstrating the largest decrease in density, reaching statistical significance in BA 10. In contrast, BA 3 and BA 18 demonstrated a higher density in WS compared to TD, although this difference was not statistically significant. Neuron density in BA 4 was similar in WS and TD. While other cortical areas were altered in WS, prefrontal areas appeared to be most affected. Neuron density is also altered in the PFC of individuals with ASD. Together these findings suggest that the PFC is targeted in neurodevelopmental disorders associated with sociobehavioral alterations. Autism Res 2017, 10: 99–112. © 2016 International Society for Autism Research, Wiley Periodicals, Inc.

Integrity signals

Registry

Crossref · 10.1002/aur.1677

Cites

83 of 83 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In Williams syndrome, the structural organization of prefrontal pyramidals, specifically their density and dendritic arboring, is severely affected.

    “The structural organization of prefrontal pyramidals, specifically their density and dendritic arboring, is severely affected [298, 299].”

    From Development of prefrontal cortex (2022) · cites this paper as [299]

Cites

Flagged first, then by citations

1 of the 84 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Lew, C. H., Brown, C., Bellugi, U., & Semendeferi, K.
Affiliations
  • University of California San Diego (US)
  • University of California, Santa Barbara (US)
  • Salk Institute for Biological Studies (US)
Corresponding author
Semendeferi, Katerina
Venue
Autism Research
Publisher
Wiley
Published
2016-08-13
Volume
10
Issue
1
Pages
99-112
ISSN
  • 1939-3792 (ISSN-L)
  • 1939-3806
OpenAlex
W2513300565
Cited by
18
References
84
Citations by year
2024: 1 · 2022: 1 · 2021: 3 · 2020: 3 · 2019: 4 · 2018: 2 · 2017: 4
FWCI
1.70
Type
journal article
Language
en
Open access
closed
Locations
  • Autism Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Mental Health (P01 NICHD033113, 5R03MH103697)
  • National Institutes of Health (PPG HD33113‐14A1)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Williams Syndrome Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetics and Neurodevelopmental Disorders
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Autism Spectrum Disorder Research
Keywords
Williams syndrome, prefrontal cortex, neuronal density, cortical cytoarchitecture, social cognition, autism spectrum disorder, postmortem brain, primary motor cortex, primary somatosensory cortex, visual cortex, behavioral phenotypes
MeSH terms
Adolescent, Adult, Female, Humans, Male, Microscopy, Middle Aged, Neurons, Prefrontal Cortex, Williams Syndrome, Young Adult

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review