Evidence map›Paper›PMID 31066065›Full record

ArticleNeuropathology and applied neurobiology2019

Von Economo neurons are part of a larger neuronal population that are selectively vulnerable in C9orf72 frontotemporal dementia.

P Gami-Patel, I van Dijken, J C van Swieten, Y A L Pijnenburg, Netherlands Brain Bank, A J M Rozemuller, J J M Hoozemans, A A Dijkstra

Open access · hybridAbstract read
In one paragraph

Article in Neuropathology and applied neurobiology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 12% 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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  11. The prefrontal cortex: from monkey to man.Brain : a journal of neurology · 2024
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  12. FTLD targets brain regions expressing recently evolved genes.medRxiv : the preprint server for health sciences · 2023
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  13. Frontotemporal Dementia, Where Do We Stand? A Narrative Review.International journal of molecular sciences · 2023
    Review
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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

8 authors at 3 institutions in 1 country.

P Gami-PatelDepartment of Pathology, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.ORCID 0000-0002-5263-8706
I van DijkenDepartment of Pathology, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.
J C van SwietenDepartment of Neurology, Alzheimer Centre, Erasmus MC, Rotterdam, The Netherlands.
Y A L PijnenburgDepartment of Neurology, Alzheimer Centre, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.
Netherlands Brain BankNetherlands Institute for Neuroscience, Amsterdam, The Netherlands.
A J M RozemullerDepartment of Pathology, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.
J J M HoozemansDepartment of Pathology, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.
A A DijkstraDepartment of Pathology, Amsterdam Neuroscience, Amsterdam University Medical Centre, Location VUMC, Amsterdam, The Netherlands.
Amsterdam Neuroscience · NLErasmus MC · NLNetherlands Institute for Neuroscience · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe behavioural variant of frontotemporal dementia with a C9orf72 expansion (C9-bvFTD) is characterised by early changes in social-emotional cognition that are linked to the loss of von Economo neurons (VENs). Together with a subset of neighbouring pyramidal neurons, VENs express the GABA receptor subunit theta (GABRQ). It is not known if the selective vulnerability of VENs in C9-bvFTD also includes this GABRQ-expressing population.

methodsWe quantified VENs and GABRQ immunopositive neurons in the anterior cingulate cortex (ACC) in C9-bvFTD (n = 16), controls (n = 12) and Alzheimer's disease (AD) (n = 7). Second, we assessed VENs and GABRQ-expressing populations in relation to the clinicopathological profiles.

resultsWe found the number of VENs and GABRQ-expressing neurons and their ratio over the total layer 5 neuronal population was lower in C9-bvFTD compared to control and AD. C9-bvFTD donors with underlying TDP43 type A pathology in the ACC showed the highest loss of GABRQ-expressing neurons. C9-bvFTD donors that did not present with motor neuron disease (MND) symptoms in the first half of their disease course showed a prominent loss of GABRQ-expressing neurons compared to controls. C9-bvFTD donors with no symptoms of psychosis showed a higher loss compared to controls. Across all donors, the number of VENs correlated strongly with the number of GABRQ-expressing neurons.

conclusionWe show that VENs, together with GABRQ-expressing neurons, are selectively vulnerable in C9-bvFTD but are both spared in AD. This suggests they are related and that this GABRQ-expressing population of VENs and pyramidal neurons, is a key modulator of social-emotional functioning.

Indexed as

AdultAgedAged, 80 and overC9orf72 ProteinFemaleFrontotemporal DementiaGyrus CinguliHumansMaleMiddle AgedNeuronsReceptors, GABA-AC9orf72 ProteinGABRQ protein, humanReceptors, GABA-AC9orf72frontotemporal dementiaGABRQsocial-emotional behaviourvon Economo neuron

Identifiers

PMID31066065
PMCPMC6915913
OpenAlexW2944260307

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Registered trials

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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.