Evidence map›Paper›PMID 25815349›Full record

ArticleAnnals of clinical and translational neurology2015

Variation in longevity gene KLOTHO is associated with greater cortical volumes.

Jennifer S Yokoyama, Virginia E Sturm, Luke W Bonham, Eric Klein, Konstantinos Arfanakis, Lei Yu, Giovanni Coppola, Joel H Kramer, David A Bennett, Bruce L Miller and 1 more

Open access · goldAbstract read
In one paragraph

Article in Annals of clinical and translational neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 7% 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

61 citing papers in PubMed, 2 syntheses or guidelines pooled it, 86 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  10. Impact ofProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  11. Amyloid-β positivity is less prevalent in cognitively unimpairedJournal of Alzheimer's disease : JAD · 2024
    Article
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  13. Review
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  18. Review
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  20. KL1 Domain of Longevity Factor Klotho Mimics the Metabolome of Cognitive Stimulation and Enhances Cognition in Young and Aging Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022
    Article

1 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

11 authors at 3 institutions in 1 country.

Jennifer S YokoyamaDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
Virginia E SturmDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
Luke W BonhamDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
Eric KleinDepartment of Neurology and Semel Institute for Neuroscience and Human Behavior, The David Geffen School of Medicine at University of California Los Angeles Los Angeles, California, 90095.
Konstantinos ArfanakisDepartment of Biomedical Engineering, Illinois Institute of Technology Chicago, Illinois, 60616 ; Rush Alzheimer's Disease Center, Rush University Medical Center Chicago, Illinois, 60612.
Lei YuRush Alzheimer's Disease Center, Rush University Medical Center Chicago, Illinois, 60612.
Giovanni CoppolaDepartment of Neurology and Semel Institute for Neuroscience and Human Behavior, The David Geffen School of Medicine at University of California Los Angeles Los Angeles, California, 90095.
Joel H KramerDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
David A BennettRush Alzheimer's Disease Center, Rush University Medical Center Chicago, Illinois, 60612.
Bruce L MillerDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
Dena B DubalDepartment of Neurology, University of California San Francisco San Francisco, California, 94158.
University of California, San Francisco · USRush University Medical Center · USUniversity of California, Los Angeles · US

Funding

TDP-43 Loss-of-Function: Biology to BiomarkersP01AG019724 · NIA · UNIVERSITY OF PENNSYLVANIA · PI BRUCE L MILLER · 2002 to 2026
$67.2M
EPIDEMIOLOGY OF NEURAL RESERVE AND NEUROBIOLOGY IN AGINGR01AG017917 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 2001 to 2023
$43.3M
PrPSc SPECIFIC INTERACTION WITH NOVEL PrP-Fc FUSION PROTEINSP50AG023501 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI MILLER, BRUCE L · 2004 to 2018
$27.1M
RISK FACTORS, PATHOLOGY, AND CLINICAL EXPRESSIONS OF ADR01AG015819 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 1998 to 2024
$21.4M
Mechanisms of Executive Decline in Normal AgingR01AG032289 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI Kaitlin B Casaletto, JOEL H KRAMER · 2009 to 2026
$8.3M
Risk Factors, Pathology, and Clinical Expressions of ADRF1AG015819 · NIA · RUSH UNIVERSITY MEDICAL CENTER · PI BENNETT, DAVID ALAN · 2014 to 2014
$6.0M
Biological Predictors Of Brain Aging Trajectories Diversity Supplement: African American Outreach And The Intersection Between Social Determinants Of Health And Biomarkers Of Degenerative DiseaseRF1AG032289 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI KRAMER, JOEL H · 2020 to 2021
$5.3M
Klotho and Neurodegenerative DiseaseR01NS092918 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DUBAL, DENA BOU · 2016 to 2020
$1.7M
Identifying the Neural Basis and Functional Role of Emotional Empathy in DementiaK23AG040127 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI STURM, VIRGINIA EMILY · 2012 to 2016
$713k
RNA signatures of frontotemporal dementia and ALS due to C9ORF72 expansionK01AG049152 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI YOKOYAMA, JENNIFER S · 2015 to 2019
$648k
Collagen VI: Novel Mechanisms and Functions in Alzheimer's DiseaseK08AG034531 · NIA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI DUBAL, DENA BOU · 2009 to 2013
$540k
NIA NIH HHS K01 AG049152NIA NIH HHS K08 AG034531NIA NIH HHS K23 AG040127NIA NIH HHS P01 AG019724NIA NIH HHS P50 AG023501NIA NIH HHS R01 AG015819NIA NIH HHS R01 AG017917NIA NIH HHS R01 AG032289NIA NIH HHS RF1 AG015819NIA NIH HHS RF1 AG032289NINDS NIH HHS R01 NS092918
6 · The paper itself

Abstract

objectiveIdentifying genetic variation associated with brain structures in aging may elucidate new biologic mechanisms underlying resilience to cognitive decline. We investigated whether carrying one copy of the protective haplotype "KL-VS" in longevity gene KLOTHO (KL) is associated with greater gray matter volume in healthy human aging compared to carrying no copies.

methodsWe performed unbiased whole-brain analysis in cognitively normal older adults from two independent cohorts to assess the relationship between KL-VS and gray matter volume using voxel-based morphometry.

resultsWe found that KL-VS heterozygosity was associated with greater volume in right dorsolateral prefrontal cortex (rDLPFC). Because rDLPFC is important for executive function, we analyzed working memory and processing speed in individuals. KL-VS heterozygosity was associated with enhanced executive function. Larger rDLPFC volume correlated with better executive function across the lifespan examined. Statistical analysis suggested that volume partially mediates the effect of genotype on cognition.

interpretationThese results suggest that variation in KL is associated with bigger brain volume and better function.

Identifiers

PMID25815349
PMCPMC4369272
OpenAlexW2028394784

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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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.