Evidence map›Paper›PMID 34654479›Full record

ArticleClinical epigenetics2021

Association of peripheral blood DNA methylation level with Alzheimer's disease progression.

Qingqin S Li, Aparna Vasanthakumar, Justin W Davis, Kenneth B Idler, Kwangsik Nho, Jeffrey F Waring, Andrew J Saykin, Alzheimer’s Disease Neuroimaging Initiative (ADNI)

Open access · goldAbstract read
In one paragraph

Article in Clinical epigenetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 2 pooled it
4.5field-weighted citation impact, top 4% 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

41 citing papers in PubMed, 2 syntheses or guidelines pooled it, 73 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
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  9. Delineating blood DNA methylation biomarkers for Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  10. Article
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  14. Blood DNA methylation signature for incident dementia: Evidence from longitudinal cohorts.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
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  16. Review
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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

8 authors at 3 institutions in 1 country.

Qingqin S LiNeuroscience, Janssen Research and Development, LLC, 1125 Trenton-Harbourton Road, Titusville, NJ, 08560, USA. qli2@its.jnj.com.ORCID 0000-0003-4182-4535
Aparna VasanthakumarGenomics Research Center, AbbVie, North Chicago, IL, USA.
Justin W DavisGenomics Research Center, AbbVie, North Chicago, IL, USA.
Kenneth B IdlerGenomics Research Center, AbbVie, North Chicago, IL, USA.
Kwangsik NhoIndiana Alzheimer's Disease Research Center, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.
Jeffrey F WaringGenomics Research Center, AbbVie, North Chicago, IL, USA.
Andrew J SaykinIndiana Alzheimer's Disease Research Center, Department of Radiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.
Alzheimer’s Disease Neuroimaging Initiative (ADNI)
AbbVie (United States) · USIndiana University School of MedicineJanssen (United States) · US

Funding

Project 1U19AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI Duygu Tosun-Turgut · 2016 to 2026
$226.7M
Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)U24AG021886 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI TATIANA M. FOROUD · 2002 to 2026
$119.8M
Human White Matter Tract Mapping by Diffusion MRIR01AG020012 · NIA · JOHNS HOPKINS UNIVERSITY · PI MORI, SUSUMU · 2001 to 2011
$4.1M
DoD Alzheimer's Disease Neuroimaging Initiative (US) W81XWH-12-2-0012NIA NIH HHS U01 AG024904NIA NIH HHS U19 AG024904NIA NIH HHS U24 AG021886
6 · The paper itself

Abstract

backgroundIdentifying biomarkers associated with Alzheimer's disease (AD) progression may enable patient enrichment and improve clinical trial designs. Epigenome-wide association studies have revealed correlations between DNA methylation at cytosine-phosphate-guanine (CpG) sites and AD pathology and diagnosis. Here, we report relationships between peripheral blood DNA methylation profiles measured using Infinium® MethylationEPIC BeadChip and AD progression in participants from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort.

resultsThe rate of cognitive decline from initial DNA sampling visit to subsequent visits was estimated by the slopes of the modified Preclinical Alzheimer Cognitive Composite (mPACC; mPACC

conclusionCandidate CpG sites and regions in peripheral blood were identified as associated with the rate of cognitive decline in participants in the ADNI cohort. While we did not identify a single CpG site with sufficient clinical utility to be used by itself due to the observed effect size, a biosignature composed of DNA methylation changes may have utility as a prognostic biomarker for AD progression.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBiomarkersCognitive DysfunctionCohort StudiesDisease ProgressionDNA MethylationFemaleHumansMaleBiomarkersAlzheimer’s diseaseDMPDMREpigeneticsEWAS

Identifiers

PMID34654479
PMCPMC8518178
OpenAlexW3205011751

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.