Evidence map›Paper›PMID 37274193›Full record

ArticleFrontiers in neuroscience2023

Heterotopic connectivity of callosal dysgenesis in mice and humans.

Diego Szczupak, Roberto Lent, Fernanda Tovar-Moll, Afonso C Silva

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.7field-weighted citation impact, top 29% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 3 citations in OpenAlex.

  1. Article
  2. From Overgrowth to Complex Malformations: A NovelChildren (Basel, Switzerland) · 2025
    Article
  3. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 2 countries.

Diego SzczupakDepartment of Neurobiology, University of Pittsburgh Brain Institute, University of Pittsburgh, Pittsburgh, PA, United States.
Roberto LentInstitute of Biomedical Sciences, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
Fernanda Tovar-MollD'Or Institute Research and Education (IDOR), Rio de Janeiro, Brazil.
Afonso C SilvaDepartment of Neurobiology, University of Pittsburgh Brain Institute, University of Pittsburgh, Pittsburgh, PA, United States.
University of Pittsburgh · USD’Or Institute for Research and Education · BRUniversidade Federal do Rio de Janeiro · BR

Funding

Preclinical investigation of common mechanistic links between aberrant protein aggregation and blood-brain barrier dysfunction in Alzheimer's disease and Alzheimer's related dementias (AD/ADRD)RF1NS117486 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SILVA, AFONSO C · 2020 to 2020
$2.6M
Preclinical investigation of common mechanistic links between aberrant protein aggregation and blood-brain barrier dysfunction in Alzheimer's disease and Alzheimer's related dementias (AD/ADRD)R01NS117486 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SILVA, AFONSO C · 2024 to 2024
$652k
NINDS NIH HHS R01 NS117486NINDS NIH HHS RF1 NS117486
6 · The paper itself

Abstract

The corpus callosum (CC), the largest brain commissure and the primary white matter pathway for interhemispheric cortical connectivity, was traditionally viewed as a predominantly homotopic structure, connecting mirror areas of the cortex. However, new studies verified that most callosal commissural fibers are heterotopic. Recently, we reported that ~75% of the callosal connections in the brains of mice, marmosets, and humans are heterotopic, having an essential role in determining the global properties of brain networks. In the present study, we leveraged high-resolution diffusion-weighted imaging and graph network modeling to investigate the relationship between heterotopic and homotopic callosal fibers in human subjects and in a spontaneous mouse model of Corpus Callosum Dysgenesis (CCD), a congenital developmental CC malformation that leads to widespread whole-brain reorganization. Our results show that the CCD brain is more heterotopic than the normotypical brain, with both mouse and human CCD subjects displaying highly variable heterotopicity maps. CCD mice have a clear heterotopicity cluster in the anterior CC, while hypoplasic humans have strongly variable patterns. Graph network-based connectivity profile showed a direct impact of heterotopic connections on CCD brains altering several network-based statistics. Our collective results show that CCD directly alters heterotopic connections and brain connectivity.

Indexed as

callosal dysgenesiscorpus callosumheterotopicityhumanmousestructural brain connectivitytractography

Identifiers

PMID37274193
PMCPMC10232863
OpenAlexW4377104627

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.