Evidence map›Paper›PMID 28560308›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2017

Resting-state network dysfunction in Alzheimer's disease: A systematic review and meta-analysis.

AmanPreet Badhwar, Angela Tam, Christian Dansereau, Pierre Orban, Felix Hoffstaedter, Pierre Bellec

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 257 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
257citing papers in PubMed, 5 pooled it
17.5field-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

257 citing papers in PubMed, 5 syntheses or guidelines pooled it, 442 citations in OpenAlex.

  1. Tracking electrophysiological signatures of Alzheimer's disease: a systematic review of multimodal studies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
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  15. Resting-state functional connectivity and cognitive impairment after COVID-19 infection: Evidence from a large-scale fMRI study.European psychiatry : the journal of the Association of European Psychiatrists · 2026
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197 more citing papers are in PubMed but not listed here.

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

6 authors at 4 institutions in 2 countries.

AmanPreet BadhwarCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada.
Angela TamCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada.
Christian DansereauCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada.
Pierre OrbanCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada.
Felix HoffstaedterInstitute of Neuroscience and Medicine (INM-1, INM-7), Research Centre Jülich, Jülich, Germany.
Pierre BellecCentre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montreal, Quebec, Canada.
Institut Universitaire de Gériatrie de Montréal · CADouglas Mental Health University Institute · CAHeinrich Heine University Düsseldorf · DEMcGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionWe performed a systematic review and meta-analysis of the Alzheimer's disease (AD) literature to examine consistency of functional connectivity alterations in AD dementia and mild cognitive impairment, using resting-state functional magnetic resonance imaging.

methodsStudies were screened using a standardized procedure. Multiresolution statistics were performed to assess the spatial consistency of findings across studies.

resultsThirty-four studies were included (1363 participants, average 40 per study). Consistent alterations in connectivity were found in the default mode, salience, and limbic networks in patients with AD dementia, mild cognitive impairment, or in both groups. We also identified a strong tendency in the literature toward specific examination of the default mode network. DISCUSSION: Convergent evidence across the literature supports the use of resting-state connectivity as a biomarker of AD. The locations of consistent alterations suggest that highly connected hub regions in the brain might be an early target of AD.

Indexed as

Alzheimer's diseaseFunctional connectivityMeta-analysisMild cognitive impairmentResting-state fMRI

Identifiers

PMID28560308
PMCPMC5436069
OpenAlexW2606081028

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.