Evidence map›Paper›PMID 31353411›Full record

ArticleThe journals of gerontology. Series A, Biological sciences and medical sciences2020

Biomarkers for Aging Identified in Cross-sectional Studies Tend to Be Non-causative.

Paul G Nelson, Daniel E L Promislow, Joanna Masel

Abstract read
In one paragraph

Article in The journals of gerontology. Series A, Biological sciences and medical sciences, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
–field-weighted citation impact
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.

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  14. Epigenetic Clocks Relate to 4 Age-related Health Outcomes Similarly Across 3 Countries.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
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  19. Epigenetics, Microbiome and Personalized Medicine: Focus on Kidney Disease.International journal of molecular sciences · 2024
    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

3 authors.

Paul G NelsonDepartment of Ecology and Evolutionary Biology, University of Arizona, Tucson.
Daniel E L PromislowDepartments of Pathology and Biology, University of Washington, Seattle.
Joanna MaselDepartment of Ecology and Evolutionary Biology, University of Arizona, Tucson.

Funding

University of Washington Nathan Shock Center of Excellence in the Basic Biology of AgingP30AG013280 · NIA · UNIVERSITY OF WASHINGTON · PI Michael MacCoss · 1995 to 2026
$27.1M
POST DOCTORAL EXCELLENCE IN RESEARCH AND TEACHINGK12GM000708 · NIGMS · UNIVERSITY OF ARIZONA · PI STRAUSFELD, NICHOLAS J · 2000 to 2018
$21.5M
Metabolome-Genome Associations for Determining Mechanisms of Aging in DrosophilaR01AG049494 · NIA · UNIVERSITY OF WASHINGTON · PI PROMISLOW, DANIEL EDWARD · 2015 to 2019
$1.8M
Molecular mechanisms and genetic architecture of sexual attractiveness.R01GM102279 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI PLETCHER, SCOTT, PROMISLOW, DANIEL EDWARD · 2013 to 2016
$1.2M
The Domestic Dog as a Model System for Aging ResearchR24AG044284 · NIA · UNIVERSITY OF WASHINGTON · PI PROMISLOW, DANIEL EDWARD · 2013 to 2015
$419k
NIA NIH HHS P30 AG013280NIA NIH HHS R01 AG049494NIA NIH HHS R24 AG044284NIGMS NIH HHS K12 GM000708NIGMS NIH HHS R01 GM102279
6 · The paper itself

Abstract

Biomarkers are important tools for diagnosis, prognosis, and identification of the causal factors of physiological conditions. Biomarkers are typically identified by correlating biological measurements with the status of a condition in a sample of subjects. Cross-sectional studies sample subjects at a single timepoint, whereas longitudinal studies follow a cohort through time. Identifying biomarkers of aging is subject to unique challenges. Individuals who age faster have intrinsically higher mortality rates and so are preferentially lost over time, in a phenomenon known as cohort selection. In this article, we use simulations to show that cohort selection biases cross-sectional analysis away from identifying causal loci of aging, to the point where cross-sectional studies are less likely to identify loci that cause aging than if loci had been chosen at random. We go on to show this bias can be corrected by incorporating correlates of mortality identified from longitudinal studies, allowing cross-sectional studies to effectively identify the causal factors of aging.

Indexed as

AgingCohort StudiesCross-Sectional StudiesBiasComputer SimulationEpigenesis, GeneticHumansPatient SelectionEpigeneticsGerontologyLongevityMortalitySenescence

Identifiers

PMID31353411
PMCPMC7457180

What OpenQuestion holds

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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.