Evidence map›Paper›PMID 34814740›Full record

ArticleAmerican journal of Alzheimer's disease and other dementias

Quantitative MRI Differences Between Early versus Late Onset Alzheimer's Disease.

Somayeh Meysami, Cyrus A Raji, David A Merrill, Verna R Porter, Mario F Mendez

Open access · goldAbstract read
In one paragraph

Article in American journal of Alzheimer's disease and other dementias. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 24% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

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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.

Somayeh MeysamiDepartment of Neurology, 21767David Geffen School of Medicine at University of California, Los Angeles, CA, USA.
Cyrus A RajiMallinckrodt Institute of Radiology, Division of Neuroradiology, 7548Washington University in St Louis, St Louis, MO, USA.ORCID 0000-0002-9086-0105
David A MerrillDepartment of Psychiatry & Biobehavioral Sciences, 21767David Geffen School of Medicine at University of California, Los Angeles, CA, USA.ORCID 0000-0003-2181-3839
Verna R PorterDepartment of Neurology, 21767David Geffen School of Medicine at University of California, Los Angeles, CA, USA.
Mario F MendezDepartment of Neurology, 21767David Geffen School of Medicine at University of California, Los Angeles, CA, USA.
University of California, Los Angeles · USWashington University in St. Louis · US

Funding

Washington University Institute of Clinical and Translational SciencesKL2TR000450 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$8.8M
Early-Onset Alzheimer's Disease Phenotypes: Neuropsychology and Neural NetworksRF1AG050967 · NIA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MENDEZ, MARIO F. · 2016 to 2016
$1.9M
NCATS NIH HHS KL2 TR000450NIA NIH HHS RF1 AG050967
6 · The paper itself

Abstract

Investigators report greater parietal tau deposition and alternate frontoparietal network involvement in early onset Alzheimer's Disease (EOAD) with onset <65 years as compared with typical late onset AD (LOAD). To determine whether clinical brain MRI volumes reflect these differences in EOAD compared with LOAD. This study investigated the clinical MRI scans of 45 persons with Clinically Probable AD with onset <65 years, and compared them to 32 with Clinically Probable AD with onset ≥65 years. Brain volumes on their T1 MRI scans were quantified with a volumetric program. Receiver operating curve analyses were performed. Persons with EOAD had significantly smaller parietal lobes (volumetric percentiles) than LOAD. Late onset Alzheimer's Disease had a smaller left putamen and hippocampus. Area Under the Curve was 96

Indexed as

Alzheimer DiseaseAge of OnsetAtrophyHippocampusHumansMagnetic Resonance ImagingAlzheimer’searly onsetlate onsetMRIvolumetric quantification

Identifiers

PMID34814740
PMCPMC10623969
OpenAlexW3216400406

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.