Evidence map›Paper›PMID 32741822›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Computational Modeling of Catecholamines Dysfunction in Alzheimer's Disease at Pre-Plaque Stage.

Daniele Caligiore, Massimo Silvetti, Marcello D'Amelio, Stefano Puglisi-Allegra, Gianluca Baldassarre

Open access · hybridAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 citing papers in PubMed, 29 citations in OpenAlex.

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  11. Upregulation of CaMolecular neurodegeneration · 2022
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  16. Increasing Serotonin to Reduce Parkinsonian Tremor.Frontiers in systems neuroscience · 2021
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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

5 authors at 4 institutions in 1 country.

Daniele CaligioreComputational and Translational Neuroscience Laboratory (CTNLab), Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
Massimo SilvettiComputational and Translational Neuroscience Laboratory (CTNLab), Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
Marcello D'AmelioUnit of Molecular Neurosciences, Department of Medicine, University Campus-Biomedico, Rome, Italy.
Stefano Puglisi-AllegraIRCCS Neuromed, Pozzilli (IS), Italy.
Gianluca BaldassarreLaboratory of Computational Embodied Neuroscience (LOCEN), Institute of Cognitive Sciences and Technologies, National Research Council, Rome, Italy.
National Research Council · ITInstitute of Cognitive Sciences and Technologies · ITIstituti di Ricovero e Cura a Carattere Scientifico · ITIstituto Neurologico Mediterraneo · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) etiopathogenesis remains partially unexplained. The main conceptual framework used to study AD is the Amyloid Cascade Hypothesis, although the failure of recent clinical experimentation seems to reduce its potential in AD research.

objectiveA possible explanation for the failure of clinical trials is that they are set too late in AD progression. Recent studies suggest that the ventral tegmental area (VTA) degeneration could be one of the first events occurring in AD progression (pre-plaque stage).

methodsHere we investigate this hypothesis through a computational model and computer simulations validated with behavioral and neural data from patients.

resultsWe show that VTA degeneration might lead to system-level adjustments of catecholamine release, triggering a sequence of events leading to relevant clinical and pathological signs of AD. These changes consist first in a midfrontal-driven compensatory hyperactivation of both VTA and locus coeruleus (norepinephrine) followed, with the progression of the VTA impairment, by a downregulation of catecholamine release. These processes could then trigger the neural degeneration at the cortical and hippocampal levels, due to the chronic loss of the neuroprotective role of norepinephrine.

conclusionOur novel hypothesis might contribute to the formulation of a wider system-level view of AD which might help to devise early diagnostic and therapeutic interventions.

Indexed as

Computer SimulationAlzheimer DiseaseCatecholaminesHippocampusHumansLocus CoeruleusPlaque, AmyloidPsychomotor PerformanceVentral Tegmental AreaCatecholaminesAlzheimer’s diseaseanterior cingulate cortexapathydecision-makingdopamineeffortlocus coeruleusmeta-learningnorepinephrinepre-plaque stagereinforcement learningreinforcement meta-learnerventral tegmental area

Identifiers

PMID32741822
PMCPMC7592658
OpenAlexW3046661134

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.