Evidence map›Paper›PMID 31322561›Full record

ArticleJournal of Alzheimer's disease : JAD2019

Telomere Shortening in the Alzheimer's Disease Neuroimaging Initiative Cohort.

Kelly N H Nudelman, Jue Lin, Kathleen A Lane, Kwangsik Nho, Sungeun Kim, Kelley M Faber, Shannon L Risacher, Tatiana M Foroud, Sujuan Gao, Justin W Davis and 3 more

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Telomere Attrition in Neurodegenerative Disorders.Frontiers in cellular neuroscience · 2020
    Article
  15. Article
  16. 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

13 authors at 4 institutions in 1 country.

Kelly N H NudelmanMedical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA.
Jue LinDepartment of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA.
Kathleen A LaneBiostatistics, Indiana University School of Medicine, Indianapolis, IN, USA.
Kwangsik NhoIndiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA.
Sungeun KimRadiology and Imaging Sciences, Indiana University School of Medicine, Indianapolis, IN, USA.
Kelley M FaberMedical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA.
Shannon L RisacherIndiana Alzheimer Disease Center, Indiana University School of Medicine, Indianapolis, IN, USA.
Tatiana M ForoudMedical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA.
Sujuan GaoBiostatistics, Indiana University School of Medicine, Indianapolis, IN, USA.
Justin W DavisGenomics Research Center, AbbVie, North Chicago, IL, USA.
Michael W WeinerCenter for Imaging of Neurodegenerative Diseases, Department of Radiology, San Francisco VA Medical Center/University of California San Francisco, San Francisco, CA, USA.
Andrew J SaykinMedical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA.
Alzheimer’s Disease Neuroimaging Initiative
Indiana University – Purdue University Indianapolis · USIndiana University School of MedicineUniversity of California, San Francisco · USAbbVie (United States) · US

Funding

Project 1U19AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI MONICA G. RIVERA-MINDT · 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
Tumor Microenvironment and Metastasis ProgramP30CA082709 · NCI · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI David W Clapp · 1999 to 2026
$59.3M
Trial-Ready Cohort for Preclinical/Prodromal Alzheimer's DiseaseR01AG053798 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI AISEN, PAUL S., CUMMINGS, JEFFREY L. · 2017 to 2022
$39.4M
Research Education ComponentP30AG010133 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 1991 to 2020
$37.3M
Training and Career Development CoreU54CA132378 · NCI · CITY COLLEGE OF NEW YORK · PI Bao Q Vuong · 2008 to 2026
$28.9M
Training and Career Development and Education CoreU54CA137788 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI Daniel Alan Heller · 2008 to 2026
$28.1M
PrPSc SPECIFIC INTERACTION WITH NOVEL PrP-Fc FUSION PROTEINSP50AG023501 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MILLER, BRUCE L · 2004 to 2018
$27.1M
Characterizing Cognitive Decline in Late Life Depression: The ADNI-D ProjectR01MH098062 · NIMH · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Robert Scott Mackin · 2013 to 2026
$9.1M
OLDER BREAST CANCER PATIENTS: RISK FOR COGNITIVE DECLINER01CA129769 · NCI · GEORGETOWN UNIVERSITY · PI AHLES, TIM ALAN, MANDELBLATT, JEANNE · 2009 to 2020
$7.3M
Memory Circuitry in MCI and Early Alzheimer’s Disease Prodrome: Molecular DriversR01AG019771 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 2001 to 2021
$6.9M
NCI NIH HHS P30 CA082709NCI NIH HHS R01 CA129769NCI NIH HHS R35 CA197289NCI NIH HHS U54 CA132378NCI NIH HHS U54 CA137788NIA NIH HHS K01 AG049050NIA NIH HHS P30 AG010133NIA NIH HHS P50 AG023501NIA NIH HHS R01 AG019771NIA NIH HHS R01 AG053798NIA NIH HHS R03 AG050856NIA NIH HHS R03 AG054936NIA NIH HHS R44 AG049540NIA NIH HHS U01 AG024904NIA NIH HHS U19 AG024904NIA NIH HHS U24 AG021886NIBIB NIH HHS R01 EB022574NIMH NIH HHS R01 MH098062NIMH NIH HHS R01 MH101472NLM NIH HHS R00 LM011384NLM NIH HHS R01 LM011360NLM NIH HHS R01 LM012535
6 · The paper itself

Abstract

backgroundAlthough shorter telomeres have been associated with Alzheimer's disease (AD), it is unclear whether longitudinal change in telomere length is associated with AD progression.

objectiveTo investigate the association of telomere length change with AD diagnosis and progression.

methodsIn 653 individuals from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort, T/S ratio (telomere versus single copy gene), a proxy of telomere length, was measured for up to five visits per participant (N = 1918 samples post-QC) using quantitative PCR (qPCR). T/S ratio was adjusted for batch effects and DNA storage time. A mixed effects model was used to evaluate association of telomere length with AD diagnostic group and interaction of age and diagnosis. Another mixed effects model was used to compare T/S ratio changes pre- to post-conversion to MCI or AD to telomere change in participants with stable diagnoses.

resultsShorter telomeres were associated with older age (Effect Size (ES) = -0.23) and male sex (ES = -0.26). Neither baseline T/S ratio (ES = -0.036) nor T/S ratio change (ES = 0.046) differed significantly between AD diagnostic groups. MCI/AD converters showed greater, but non-significant, telomere shortening compared to non-converters (ES = -0.186).

conclusionsAlthough AD compared to controls showed small, non-significant effects for baseline T/S ratio and T/S ratio shortening, we did observe a larger, though still non-significant effect for greater telomere shortening in converters compared to non-converters. Although our results do not support telomere shortening as a robust biomarker of AD progression, further investigation in larger samples and for subgroups of participants may be informative.

Indexed as

Alzheimer DiseaseTelomere ShorteningAgedAge FactorsDatabases, FactualDisease ProgressionFemaleHumansMaleNeuroimagingSex FactorsTelomere HomeostasisAlzheimer’s diseaselongitudinalprogressionshorteningtelomere

Identifiers

PMID31322561
PMCPMC7481955
OpenAlexW2963754737

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.