Evidence map›Paper›PMID 35869559›Full record

SynthesisAlzheimer's research & therapy2022

Grey matter changes on brain MRI in subjective cognitive decline: a systematic review.

Pablo Arrondo, Óscar Elía-Zudaire, Gloria Martí-Andrés, María A Fernández-Seara, Mario Riverol

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Alzheimer's research & therapy, 2022. 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
5.2field-weighted citation impact, top 3% 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, 35 citations in OpenAlex.

  1. Review
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  8. Hybrid multi-modality multi-task learning for forecasting progression trajectories in subjective cognitive decline.Neural networks : the official journal of the International Neural Network Society · 2025
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  10. Observational
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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 2 institutions in 1 country.

Pablo Arrondo *Clínica Josefina Arregui, Alsasua, Spain.
Óscar Elía-Zudaire *Instituto de Neurociencias de Alicante (UMH-CSIC), Alicante, Spain.
Gloria Martí-AndrésNeurology Department, Clínica Universidad de Navarra, Avenida de Pío XII 36, 31008, Pamplona, Navarra, Spain. glomaran@gmail.com.
María A Fernández-SearaNavarra's Health Research Institute (IDISNA), Pamplona, Spain.
Mario RiverolNeurology Department, Clínica Universidad de Navarra, Avenida de Pío XII 36, 31008, Pamplona, Navarra, Spain.
Clinica Universidad de Navarra · ESInstituto de Neurociencias · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPeople with subjective cognitive decline (SCD) report cognitive deterioration. However, their performance in neuropsychological evaluation falls within the normal range. The present study aims to analyse whether structural magnetic resonance imaging (MRI) reveals grey matter changes in the SCD population compared with healthy normal controls (HC).

methodsParallel systematic searches in PubMed and Web of Science databases were conducted, following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Quality assessment was completed using the Newcastle-Ottawa Scale (NOS).

resultsFifty-one MRI studies were included. Thirty-five studies used a region of interest (ROI) analysis, 15 used a voxel-based morphometry (VBM) analysis and 10 studies used a cortical thickness (CTh) analysis. Ten studies combined both, VBM or CTh analysis with ROI analysis.

conclusionsMedial temporal structures, like the hippocampus or the entorhinal cortex (EC), seemed to present grey matter reduction in SCD compared with HC, but the samples and results are heterogeneous. Larger sample sizes could help to better determine if these grey matter changes are consistent in SCD subjects.

Indexed as

Cognitive DysfunctionGray MatterBrainHumansMagnetic Resonance ImagingNeuropsychological TestsAlzheimer’s diseaseGrey matterMagnetic resonance imagingPRISMASubjective cognitive declineVoxel-based morphometry

Identifiers

PMID35869559
PMCPMC9306106
OpenAlexW4286716307

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.