Evidence map›Paper›PMID 39583650›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)

A data-driven, multi-domain brain gray matter signature as a powerful biomarker associated with several clinical outcomes.

Evan Fletcher, Brandon Gavett, Sarah Tomaszewski Farias, Keith Widaman, Rachel Whitmer, Audrey P Fan, Maria Corrada, Charles DeCarli, Dan Mungas

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands). The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

9 authors.

Evan FletcherDepartment of Neurology University of California Davis California USA.ORCID https://orcid.org/0000-0002-9761-3131
Brandon GavettDepartment of Neurology University of California Davis California USA.
Sarah Tomaszewski FariasDepartment of Neurology University of California Davis California USA.
Keith WidamanSchool of Education University of California Riverside California USA.
Rachel WhitmerDepartment of Neurology University of California Davis California USA.
Audrey P FanDepartment of Neurology University of California Davis California USA.
Maria CorradaInstitute for Memory Impairments and Neurological Disorders Hewitt Hall Irvine California USA.
Charles DeCarliDepartment of Neurology University of California Davis California USA.
Dan MungasDepartment of Neurology University of California Davis California USA.

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
Epidemiology of Age-related Dementia, Mild Cognitive Impairment and Brain Pathology in Cohort of Oldest-OldR01AG056519 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Maria Corrada, Paola Gilsanz · 2022 to 2026
$25.8M
UC Davis Alzheimer's Disease Research CenterP30AG072972 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI LEE-WAY JIN · 2021 to 2026
$25.2M
Study of Healthy Aging in African AmericansR01AG050782 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Paola Gilsanz, Rachel A Whitmer · 2023 to 2026
$19.1M
Lifecourse health, cerebral pathology and ethnic disparities in dementia (KHANDLE Study)R01AG052132 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI GILSANZ, PAOLA, GLYMOUR, MEDELLENA MARIA · 2021 to 2025
$18.0M
Brain pathologies, reserve and cognition in aging and dementiaR01AG031563 · NIA · UNIVERSITY OF CALIFORNIA AT DAVIS · PI Evan Fletcher, SARAH E TOMASZEWSKI-FARIAS · 2009 to 2026
$8.9M
NIA NIH HHS P30 AG072972NIA NIH HHS R01 AG031563NIA NIH HHS R01 AG050782NIA NIH HHS R01 AG052132NIA NIH HHS R01 AG056519NIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

introductionCharacterizing pathological changes in the brain that underlie cognitive impairment, including Alzheimer's disease and related disorders, is central to clinical concerns of prevention, diagnosis, and treatment.

methodsWe describe the properties of a brain gray matter region ("Union Signature") that is derived from four behavior-specific, data-driven signatures in a discovery cohort.

resultsIn a separate validation set, the Union Signature demonstrates clinically relevant properties. Its associations with episodic memory, executive function, and Clinical Dementia Rating Sum of Boxes are stronger than those of several standardly accepted brain measures (e.g., hippocampal volume, cortical gray matter) and other previously developed brain signatures. The ability of the Union Signature to classify clinical syndromes among normal, mild cognitive impairment, and dementia exceeds that of the other measures. DISCUSSION: The Union Signature is a powerful, multipurpose correlate of clinically relevant outcomes and a strong classifier of clinical syndromes. Highlights: Data-driven brain signatures are potentially valuable in models of cognitive aging.In previous work, we outlined rigorous validation of signatures for memory.This work demonstrates a signature predicting multiple clinical measures.This could be useful in models of interventions for brain support of cognition.

Indexed as

brain signatures of cognitionclinical measurementscognitive agingcomputationally derived biomarkers

Identifiers

PMID39583650
PMCPMC11584916

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.