Evidence map›Paper›PMID 30707186›Full record

ReviewContinuum (Minneapolis, Minn.)2019

Early-onset Alzheimer Disease and Its Variants.

Mario F Mendez

Open access · greenAbstract readReview
PubMed Full text at PMC Publisher
In one paragraph

Review in Continuum (Minneapolis, Minn.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 164 papers, 9 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
164citing papers in PubMed, 9 pooled it
17.8field-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

164 citing papers in PubMed, 9 syntheses or guidelines pooled it, 263 citations in OpenAlex.

  1. Pooled it
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  10. Trial
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  16. Article
  17. Article
  18. Cognitive Trajectories from Preclinical Alzheimer's Disease to Dementia.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  19. Rethinking Alzheimer's disease susceptibility and heterogeneity. Comment on Miller et al.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  20. White Matter Microstructural Alterations Mediate the Association between Polygenic Risk for Alzheimer's Disease and Cognitive Performance in Clinically Asymptomatic Adults.Magnetic resonance in medical sciences : MRMS : an official journal of Japan Society of Magnetic Resonance in Medicine · 2026
    Article

104 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

1 author at 1 institution in 1 country.

Mario F Mendez
VA Greater Los Angeles Healthcare System · US

Funding

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
NIA NIH HHS RF1 AG050967
6 · The paper itself

Abstract

purpose of reviewEarly-onset Alzheimer disease (AD) is defined as having an age of onset younger than 65 years. While early-onset AD is often overshadowed by the more common late-onset AD, recognition of the differences between early- and late-onset AD is important for clinicians. RECENT

findingsEarly-onset AD comprises about 5% to 6% of cases of AD and includes a substantial percentage of phenotypic variants that differ from the usual amnestic presentation of typical AD. Characteristics of early-onset AD in comparison to late-onset AD include a larger genetic predisposition (familial mutations and summed polygenic risk), more aggressive course, more frequent delay in diagnosis, higher prevalence of traumatic brain injury, less memory impairment and greater involvement of other cognitive domains on presentation, and greater psychosocial difficulties. Neuroimaging features of early-onset AD in comparison to late-onset AD include greater frequency of hippocampal sparing and posterior neocortical atrophy, increased tau burden, and greater connectomic changes affecting frontoparietal networks rather than the default mode network. SUMMARY: Early-onset AD differs substantially from late-onset AD, with different phenotypic presentations, greater genetic predisposition, and differences in neuropathologic burden and topography. Early-onset AD more often presents with nonamnestic phenotypic variants that spare the hippocampi and with greater tau burden in posterior neocortices. The early-onset AD phenotypic variants involve different neural networks than typical AD. The management of early-onset AD is similar to that of late-onset AD but with special emphasis on targeting specific cognitive areas and more age-appropriate psychosocial support and education.

Indexed as

Age of OnsetAlzheimer DiseaseBrainHumansMemory DisordersNeuroimagingNeuropsychological Tests

Identifiers

PMID30707186
PMCPMC6538053
OpenAlexW2912263089

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.