Evidence map›Paper›PMID 34366336›Full record

ArticleJournal of Alzheimer's disease : JAD2021

Grey Matter Loss at Different Stages of Cognitive Decline: A Role for the Thalamus in Developing Alzheimer's Disease.

Laurens Ansem van de Mortel, Rajat Mani Thomas, Guido Alexander van Wingen, Alzheimer’s Disease Neuroimaging Initiative

Open access · hybridAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed, 6 pooled it
9.3field-weighted citation impact, top 1% 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

60 citing papers in PubMed, 6 syntheses or guidelines pooled it, 94 citations in OpenAlex.

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  14. Implication of the thalamus in sleep alterations observed in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Review
  15. Neuronal alkaline phosphatase promotes the spread of Tau-induced pathology, and its blockade prevents neurodegeneration and memory loss.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Article
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  20. Adaptive Integration of Incomplete Multimodal 3D Neuroimaging for Alzheimer's Prediction and Biomarker Discovery.AMIA Joint Summits on Translational Science proceedings. AMIA Joint Summits on Translational Science · 2026
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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

4 authors at 1 institution in 1 country.

Laurens Ansem van de MortelDepartment of Psychiatry, Amsterdam UMC, Universityof Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands.
Rajat Mani ThomasDepartment of Psychiatry, Amsterdam UMC, Universityof Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands.
Guido Alexander van WingenDepartment of Psychiatry, Amsterdam UMC, Universityof Amsterdam, Amsterdam Neuroscience, Amsterdam, The Netherlands.
Alzheimer’s Disease Neuroimaging Initiative
Amsterdam Neuroscience · NL

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
CIHRNIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

backgroundAlzheimer's disease (AD) is characterized by cognitive impairment and large loss of grey matter volume and is the most prevalent form of dementia worldwide. Mild cognitive impairment (MCI) is the stage that precedes the AD dementia stage, but individuals with MCI do not always convert to the AD dementia stage, and it remains unclear why.

objectiveWe aimed to assess grey matter loss across the brain at different stages of the clinical continuum of AD to gain a better understanding of disease progression.

methodsIn this large-cohort study (N = 1,386) using neuroimaging data from the Alzheimer's Disease Neuroimaging Initiative, voxel-based morphometry analyses were performed between healthy controls, individuals with early and late and AD dementia stage.

resultsClear patterns of grey matter loss in mostly hippocampal and temporal regions were found across clinical stages, though not yet in early MCI. In contrast, thalamic volume loss seems one of the first signs of cognitive decline already during early MCI, whereas this volume loss does not further progress from late MCI to AD dementia stage. AD dementia stage converters already show grey matter loss in hippocampal and mid-temporal areas as well as the posterior thalamus (pulvinar) and angular gyrus at baseline.

conclusionThis study confirms the role of temporal brain regions in AD development and suggests additional involvement of the thalamus/pulvinar and angular gyrus that may be linked to visuospatial, attentional, and memory related problems in both early MCI and AD dementia stage conversion.

Indexed as

AgedAlzheimer DiseaseAtrophyBrainCognitive DysfunctionCohort StudiesDisease ProgressionFemaleGray MatterHippocampusHumansMagnetic Resonance ImagingMaleTemporal LobeThalamusAlzheimer’s diseaseangular gyrusgrey matterhippocampusneuroimagingthalamus

Identifiers

PMID34366336
PMCPMC8543264
OpenAlexW3192152300

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.