Evidence map›Paper›PMID 34921240›Full record

ArticleCommunications biology2021

Epigenetic models developed for plains zebras predict age in domestic horses and endangered equids.

Brenda Larison, Gabriela M Pinho, Amin Haghani, Joseph A Zoller, Caesar Z Li, Carrie J Finno, Colin Farrell, Christopher B Kaelin, Gregory S Barsh, Bernard Wooding and 4 more

Open access · goldAbstract read
In one paragraph

Article in Communications biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
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  11. Harnessing male germline epigenomics for the genetic improvement in cattle.Journal of animal science and biotechnology · 2023
    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

14 authors at 4 institutions in 1 country.

Brenda Larison *Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA. blarison@ucla.edu.ORCID http://orcid.org/0000-0002-0264-7276
Gabriela M Pinho *Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, 90095, USA.ORCID http://orcid.org/0000-0003-4671-8221
Amin HaghaniHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA.
Joseph A ZollerHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA.ORCID http://orcid.org/0000-0001-6309-0291
Caesar Z LiHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA.ORCID http://orcid.org/0000-0002-3907-7983
Carrie J FinnoDepartment of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, CA, 95616, USA.
Colin FarrellDepartment of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA.
Christopher B KaelinHudsonAlpha Institute for Biotechnology, Huntsville, AL, 35806, USA.ORCID http://orcid.org/0000-0002-3782-6020
Gregory S BarshHudsonAlpha Institute for Biotechnology, Huntsville, AL, 35806, USA.ORCID http://orcid.org/0000-0002-0838-1042
Bernard WoodingQuagga Project, Elandsberg Farms, Hermon, 7308, South Africa.
Todd R RobeckZoological Operations, SeaWorld Parks and Entertainment, 7007 SeaWorld Drive, Orlando, FL, USA.ORCID http://orcid.org/0000-0001-8573-5070
Dewey MaddoxWhite Oak Conservation, 581705 White Oak Road, Yulee, FL, 32097, USA.
Matteo PellegriniDepartment of Molecular, Cell and Developmental Biology, University of California, Los Angeles, CA, USA.
Steve HorvathHuman Genetics, David Geffen School of Medicine, University of California, Los Angeles, CA, 90095, USA. shorvath@mednet.ucla.edu.ORCID http://orcid.org/0000-0002-4110-3589
University of California, Los Angeles · USHudsonAlpha Institute for Biotechnology · USSeaWorld Entertainment · USUniversity of California, Davis · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Effective conservation and management of threatened wildlife populations require an accurate assessment of age structure to estimate demographic trends and population viability. Epigenetic aging models are promising developments because they estimate individual age with high accuracy, accurately predict age in related species, and do not require invasive sampling or intensive long-term studies. Using blood and biopsy samples from known age plains zebras (Equus quagga), we model epigenetic aging using two approaches: the epigenetic clock (EC) and the epigenetic pacemaker (EPM). The plains zebra EC has the potential for broad application within the genus Equus given that five of the seven extant wild species of the genus are threatened. We test the EC's ability to predict age in sister taxa, including two endangered species and the more distantly related domestic horse, demonstrating high accuracy in all cases. By comparing chronological and estimated age in plains zebras, we investigate age acceleration as a proxy of health status. An interaction between chronological age and inbreeding is associated with age acceleration estimated by the EPM, suggesting a cumulative effect of inbreeding on biological aging throughout life.

Indexed as

Age DistributionEpigenesis, GeneticAnimalsEndangered SpeciesEpigenomicsEquidaeHorsesModels, GeneticPopulation DynamicsSpecies Specificity

Identifiers

PMID34921240
PMCPMC8683477
OpenAlexW4200323583

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.