Evidence map›Paper›PMID 34819378›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Three-dimensional virtual histology of the human hippocampus based on phase-contrast computed tomography.

Marina Eckermann, Bernhard Schmitzer, Franziska van der Meer, Jonas Franz, Ove Hansen, Christine Stadelmann, Tim Salditt

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Quantitative Stain Mapping in X-Ray Virtual Histology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
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  14. Neodymium acetate as a contrast agent for X-ray phase-contrast tomography.Journal of medical imaging (Bellingham, Wash.) · 2023
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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

7 authors at 3 institutions in 1 country.

Marina EckermannInstitut für Röntgenphysik, Universität Göttingen, 37077 Göttingen, Deutschland.ORCID 0000-0001-6418-4310
Bernhard SchmitzerInstitut für Informatik, Universität Göttingen, 37077 Göttingen, Deutschland.ORCID 0000-0002-6146-8833
Franziska van der MeerInstitut für Neuropathologie, Universitätsmedizin Göttingen, 37099 Göttingen, Deutschland.
Jonas FranzInstitut für Neuropathologie, Universitätsmedizin Göttingen, 37099 Göttingen, Deutschland.ORCID 0000-0001-7523-6622
Ove HansenInstitut für Röntgenphysik, Universität Göttingen, 37077 Göttingen, Deutschland.ORCID 0000-0002-0365-5817
Christine StadelmannCluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells," Universität Göttingen, 37077 Göttingen, Deutschland.ORCID 0000-0003-1766-5458
Tim SaldittInstitut für Röntgenphysik, Universität Göttingen, 37077 Göttingen, Deutschland; tsaldit@gwdg.de.ORCID 0000-0003-4636-0813
Universitätsmedizin Göttingen · DEMultiscale BioimagingUniversity of Göttingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We have studied the three-dimensional (3D) cytoarchitecture of the human hippocampus in neuropathologically healthy and Alzheimer's disease (AD) individuals, based on phase-contrast X-ray computed tomography of postmortem human tissue punch biopsies. In view of recent findings suggesting a nuclear origin of AD, we target in particular the nuclear structure of the dentate gyrus (DG) granule cells. Tissue samples of 20 individuals were scanned and evaluated using a highly automated approach of measurement and analysis, combining multiscale recordings, optimized phase retrieval, segmentation by machine learning, representation of structural properties in a feature space, and classification based on the theory of optimal transport. Accordingly, we find that the prototypical transformation between a structure representing healthy granule cells and the pathological state involves a decrease in the volume of granule cell nuclei, as well as an increase in the electron density and its spatial heterogeneity. The latter can be explained by a higher ratio of heterochromatin to euchromatin. Similarly, many other structural properties can be derived from the data, reflecting both the natural polydispersity of the hippocampal cytoarchitecture between different individuals in the physiological context and the structural effects associated with AD pathology.

Indexed as

Brain MappingCell NucleusContrast MediaDentate GyrusEuchromatinGray MatterHeterochromatinHippocampusHumansImaging, Three-DimensionalMachine LearningNormal DistributionPattern Recognition, AutomatedPrincipal Component AnalysisReproducibility of ResultsTomography, X-Ray ComputedContrast MediaEuchromatinHeterochromatin3D virtual histologyAlzheimer’s diseasehuman hippocampusmultiscale imagingX-ray phase-contrast tomography

Identifiers

PMID34819378
PMCPMC8640721
OpenAlexW3216485632

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.