Evidence map›Paper›PMID 34924392›Full record

SynthesisJournal of Alzheimer's disease : JAD2022

Cerebral Volumetric Correlates of Apathy in Alzheimer's Disease and Cognitively Normal Older Adults: Meta-Analysis, Label-Based Review, and Study of an Independent Cohort.

Shefali Chaudhary, Simon Zhornitsky, Herta H Chao, Christopher H van Dyck, Chiang-Shan R Li

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of Alzheimer's disease : JAD, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.8field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 20 citations in OpenAlex.

  1. Neurotransmitter Systems in Alzheimer's Disease.Current issues in molecular biology · 2026
    Review
  2. Article
  3. Article
  4. Review
  5. Observational
  6. Article
  7. Article
  8. An Update on Apathy in Alzheimer's Disease.Geriatrics (Basel, Switzerland) · 2023
    Review
  9. Review
  10. Observational
  11. Article
  12. 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

5 authors at 2 institutions in 1 country.

Shefali ChaudharyDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Simon ZhornitskyDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Herta H ChaoComprehensive Cancer Center, Department of Medicine, Yale University School of Medicine, New Haven, CT, USA.
Christopher H van DyckDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Chiang-Shan R LiDepartment of Psychiatry, Yale University School of Medicine, New Haven, CT, USA.
Yale University · USVA Connecticut Healthcare System · US

Funding

Yale Alzheimer Disease Research CenterP30AG066508 · NIA · YALE UNIVERSITY · PI STEPHEN M STRITTMATTER, CHRISTOPHER H VAN DYCK · 2020 to 2026
$30.2M
Neurocognitive Changes from Long-Term Androgen Deprivation Therapy in Prostate Cancer PatientsR01CA218501 · NCI · YALE UNIVERSITY · PI CHAO, HERTA HUEY-AN · 2018 to 2023
$1.9M
Noradrenergic mechanisms of alcohol's impact on the development of MCI and early stage ADR01AG072893 · NIA · YALE UNIVERSITY · PI LI, CHIANG-SHAN RAY · 2020 to 2024
$1.8M
A noradrenergic mechanism of apathy and motivation deficit in MCI and ADR21AG067024 · NIA · YALE UNIVERSITY · PI LI, CHIANG-SHAN RAY · 2020 to 2020
$404k
Effects of ADT on motivation and emotion function in prostate cancer patients: longitudinal imaging and predictionI01CX001301 · VA · VA CONNECTICUT HEALTHCARE SYSTEM · PI Herta Huey-An Chao · 2017 to 2026
–
CSRD VA I01 CX001301NCI NIH HHS R01 CA218501NIA NIH HHS P30 AG066508NIA NIH HHS R01 AG072893NIA NIH HHS R21 AG067024
6 · The paper itself

Abstract

backgroundAffecting nearly half of the patients with Alzheimer's disease (AD), apathy is associated with higher morbidity and reduced quality of life. Basal ganglia and cortical atrophy have been implicated in apathy. However, the findings have varied across studies and left unclear whether subdomains of apathy may involve distinct neuroanatomical correlates.

objectiveTo identify neuroanatomical correlates of AD-associated apathy.

methodsWe performed a meta-analysis and label-based review of the literature. Further, following published routines of voxel-based morphometry, we aimed to confirm the findings in an independent cohort of 19 patients with AD/mild cognitive impairment and 25 healthy controls assessed with the Apathy Evaluation Scale.

resultsMeta-analysis of 167 AD and 56 healthy controls showed convergence toward smaller basal ganglia gray matter volume (GMV) in apathy. Label-based review showed anterior cingulate, putamen, insula, inferior frontal gyrus (IFG) and middle temporal gyrus (MTG) atrophy in AD apathy. In the independent cohort, with small-volume-correction, right putamen and MTG showed GMVs in negative correlation with Apathy Evaluation Scale total, behavioral, and emotional scores, and right IFG with emotional score (p < 0.05 family-wise error (FWE)-corrected), controlling for age, education, intracranial volume, and depression. With the Mini-Mental State Examination scores included as an additional covariate, the correlation of right putamen GMV with behavioral and emotional score, right MTG GMV with total and emotional score, and right IFG GMV with emotional score were significant.

conclusionThe findings implicate putamen, MTG and IFG atrophy in AD associated apathy, potentially independent of cognitive impairment and depression, and suggest potentially distinct volumetric correlates of apathy.

Indexed as

AgedAlzheimer DiseaseApathyAtrophyBasal GangliaBrainCognitive DysfunctionCohort StudiesGray MatterGyrus CinguliHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingPrefrontal CortexActivation likelihood estimationAlzheimer’s diseaseAlzheimer-type dementiaemotional apathygray matterinferior frontal gyrusmeta-analysismiddle temporal gyrusstriatum

Identifiers

PMID34924392
PMCPMC9215906
OpenAlexW4200170098

What OpenQuestion holds

Textmetadata
LicenceTDM
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.