Evidence map›Paper›PMID 32040564›Full record

ArticleBrain : a journal of neurology2020

Morphometric network differences in ageing versus Alzheimer's disease dementia.

Alexa Pichet Binette, Julie Gonneaud, Jacob W Vogel, Renaud La Joie, Pedro Rosa-Neto, D Louis Collins, Judes Poirier, John C S Breitner, Sylvia Villeneuve, Etienne Vachon-Presseau and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 61 citations in OpenAlex.

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  15. Article
  16. Distinct patterns of neurodegeneration after TBI and in Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  17. Article
  18. Article
  19. Article
  20. Functional connectome fingerprinting across the lifespan.Network neuroscience (Cambridge, Mass.) · 2023
    Article
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

12 authors at 4 institutions in 2 countries.

Alexa Pichet BinetteDepartment of Psychiatry, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1Y2, Canada.
Julie GonneaudDouglas Mental Health University Institute, Montreal, Qc, H4H 1R3, Canada.
Jacob W VogelMcConnell Brain Imaging Center, Montreal Neurological Institute, Montreal, Qc, H3A 2B4, Canada.
Renaud La JoieDepartment of Neurology, Memory and Aging Center, University of California San Francisco, San Francisco, CA, 94158, USA.
Pedro Rosa-NetoDepartment of Psychiatry, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1Y2, Canada.
D Louis CollinsMcConnell Brain Imaging Center, Montreal Neurological Institute, Montreal, Qc, H3A 2B4, Canada.
Judes PoirierDepartment of Psychiatry, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1Y2, Canada.
John C S BreitnerDepartment of Psychiatry, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1Y2, Canada.
Sylvia VilleneuveDepartment of Psychiatry, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1Y2, Canada.
Etienne Vachon-PresseauDepartment of Anesthesia, Faculty of Medicine, McGill University, Montreal, Qc, H3A 1G1, Canada.
Alzheimer’s Disease Neuroimaging Initiative
PREVENT-AD Research Group
Douglas Mental Health University Institute · CAMontreal Neurological Institute and Hospital · CAMcGill University Health Centre · CAUniversity of California, San Francisco · US

Funding

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

Abstract

Age being the main risk factor for Alzheimer's disease, it is particularly challenging to disentangle structural changes related to normal brain ageing from those specific to Alzheimer's disease. Most studies aiming to make this distinction focused on older adults only and on a priori anatomical regions. Drawing on a large, multi-cohort dataset ranging from young adults (n = 468; age range 18-35 years), to older adults with intact cognition (n = 431; age range 55-90 years) and with Alzheimer's disease (n = 50 with late mild cognitive impairment and 71 with Alzheimer's dementia, age range 56-88 years), we investigated grey matter organization and volume differences in ageing and Alzheimer's disease. Using independent component analysis on all participants' structural MRI, we first derived morphometric networks and extracted grey matter volume in each network. We also derived a measure of whole-brain grey matter pattern organization by correlating grey matter volume in all networks across all participants from the same cohort. We used logistic regressions and receiver operating characteristic analyses to evaluate how well grey matter volume in each network and whole-brain pattern could discriminate between ageing and Alzheimer's disease. Because increased heterogeneity is often reported as one of the main features characterizing brain ageing, we also evaluated interindividual heterogeneity within morphometric networks and across the whole-brain organization in ageing and Alzheimer's disease. Finally, to investigate the clinical validity of the different grey matter features, we evaluated whether grey matter volume or whole-brain pattern was related to clinical progression in cognitively normal older adults. Ageing and Alzheimer's disease contributed additive effects on grey matter volume in nearly all networks, except frontal lobe networks, where differences in grey matter were more specific to ageing. While no networks specifically discriminated Alzheimer's disease from ageing, heterogeneity in grey matter volumes across morphometric networks and in the whole-brain grey matter pattern characterized individuals with cognitive impairments. Preservation of the whole-brain grey matter pattern was also related to lower risk of developing cognitive impairment, more so than grey matter volume. These results suggest both ageing and Alzheimer's disease involve widespread atrophy, but that the clinical expression of Alzheimer's disease is uniquely associated with disruption of morphometric organization.

Indexed as

AgingAdolescentAdultAgedAged, 80 and overAlzheimer DiseaseBrainCognition DisordersCognitive DysfunctionDementiaDisease ProgressionFemaleHumansMagnetic Resonance ImagingMaleMiddle Agedgrey matterlifespanMRIneurodegenerationstructural covariance

Identifiers

PMID32040564
PMCPMC7009528
OpenAlexW3005165005

What OpenQuestion holds

Textmetadata
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.