Evidence map›Paper›PMID 25619662›Full record

ArticleNeurobiology of aging2015

L-type calcium channel blockers and substance P induce angiogenesis of cortical vessels associated with beta-amyloid plaques in an Alzheimer mouse model.

Nina Daschil, Kathrin M Kniewallner, Gerald J Obermair, Birgit Hutter-Paier, Manfred Windisch, Josef Marksteiner, Christian Humpel

Open access · hybridAbstract read
In one paragraph

Article in Neurobiology of aging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.7field-weighted citation impact, top 19% 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

20 citing papers in PubMed, 32 citations in OpenAlex.

  1. Amyloid β alters vascular CaThe Journal of physiology · 2025
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  8. Restoration of Olfactory Memory inFrontiers in cellular neuroscience · 2019
    Article
  9. Review
  10. Article
  11. Review
  12. Review
  13. From Gene to Behavior: L-Type Calcium Channel Mechanisms Underlying Neuropsychiatric Symptoms.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2017
    Review
  14. Article
  15. Article
  16. Review
  17. Article
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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.

Nina DaschilDepartment of Psychiatry and Psychotherapy, University Clinic of General and Social Psychiatry, Medical University of Innsbruck, Innsbruck, Austria.
Kathrin M KniewallnerDepartment of Psychiatry and Psychotherapy, University Clinic of General and Social Psychiatry, Medical University of Innsbruck, Innsbruck, Austria.
Gerald J ObermairDepartment of Physiology and Medical Physics, Medical University of Innsbruck, Innsbruck, Austria.
Birgit Hutter-PaierQPS Austria GmbH, Grambach, Austria.
Manfred WindischNeuroScios GmbH, Graz, Austria.
Josef MarksteinerDepartment of Psychiatry and Psychotherapy A, General Hospital LKH Hall, Hall, Austria.
Christian HumpelDepartment of Psychiatry and Psychotherapy, University Clinic of General and Social Psychiatry, Medical University of Innsbruck, Innsbruck, Austria. Electronic address: christian.humpel@i-med.ac.at.
Innsbruck Medical University · ATUniversität Innsbruck · ATQPS (Austria) · AT

Funding

Austrian Science Fund FWF F 4405
6 · The paper itself

Abstract

It is well established that L-type calcium channels (LTCCs) are expressed in astroglia. However, their functional role is still speculative, especially under pathologic conditions. We recently showed that the α1 subunit-like immunoreactivity of the CaV1.2 channel is strongly expressed in reactive astrocytes around beta-amyloid plaques in 11-month-old Alzheimer transgenic (tg) mice with the amyloid precursor protein London and Swedish mutations. The aim of the present study was to examine the cellular expression of all LTCC subunits around beta-amyloid plaques by in situ hybridization using (35)S-labeled oligonucleotides. Our data show that messenger RNAs (mRNAs) of the LTCC CaV1.2 α1 subunit as well as all auxiliary β and α2δ subunits, except α2δ-4, were expressed in the hippocampus of age-matched wild-type mice. It was unexpected to see, that cells directly located in the plaque core in the cortex expressed mRNAs for CaV1.2 α1, β2, β4, and α2δ-1, whereas no expression was detected in the halo. Furthermore, cells in the plaque core also expressed preprotachykinin-A mRNA, the precursor for substance P. By means of confocal microscopy, we demonstrated that collagen-IV-stained brain vessels in the cortex were associated with the plaque core and were immunoreactive for substance P. In cortical organotypic brain slices of adult Alzheimer mice, we could demonstrate that LTCC blockers increased angiogenesis, which was further potentiated by substance P. In conclusion, our data show that brain vessels associated with beta-amyloid plaques express substance P and an LTCC and may play a role in angiogenesis.

Indexed as

Neovascularization, PathologicAlzheimer DiseaseAmyloid beta-PeptidesAnimalsAstrocytesCalcium Channel BlockersCalcium Channels, L-TypeCerebral CortexDisease Models, AnimalMice, TransgenicPlaque, AmyloidRNA, MessengerSubstance PAmyloid beta-PeptidesCalcium Channel BlockersCalcium Channels, L-TypeRNA, MessengerSubstance PAlzheimerAngiogenesisBeta-amyloid plaqueL-type calcium channelReactive astrocytesSubstance PVessels

Identifiers

PMID25619662
PMCPMC4347662
OpenAlexW2045611943

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.