Evidence map›Paper›PMID 39928272›Full record

ArticleGeroScience2025

The role of protective genetic variants in modulating epigenetic aging.

Yosra Bejaoui, Luma Srour, Abeer Qannan, Junko Oshima, Chadi Saad, Steve Horvath, Hamdi Mbarek, Nady El Hajj

Abstract read
In one paragraph

Article in GeroScience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

3 citing papers in PubMed.

  1. Review
  2. Article
  3. Review
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.

Yosra BejaouiCollege of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.
Luma SrourCollege of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.
Abeer QannanCollege of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar.
Junko OshimaDepartment of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98105, USA.
Chadi SaadQatar Genome Program, Qatar Precision Health Institute, Qatar Foundation, Doha, Qatar.
Steve HorvathAltos Labs, San Diego, USA.
Hamdi MbarekQatar Genome Program, Qatar Precision Health Institute, Qatar Foundation, Doha, Qatar.
Nady El HajjCollege of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar. nelhajj@hbku.edu.qa.ORCID 0000-0003-3420-8531

Funding

International Registry of Werner SyndromeR01CA210916 · NCI · UNIVERSITY OF WASHINGTON · PI JUNKO OSHIMA · 2016 to 2026
$3.8M
NCI NIH HHS R01 CA210916
6 · The paper itself

Abstract

Several progeroid syndromes' causative mutations have been linked to epigenetic age acceleration as measured via several epigenetic clocks. At the same time, several protective variants have also been discovered that can reduce the risk of developing certain age-related disorders. However, the impact of these protective variants on epigenetic aging has not been well elucidated. Our research, which involved screening over 14,669 healthy individuals enrolled in the Qatar BioBank (QBB) and sequenced by the Qatar Genome Project (QGP), identified individuals carrying protective variants against age-related disorders, including Alzheimer's disease (AD), type 2 diabetes (T2D), and atherosclerosis. In this study, we measured methylation levels in blood DNA using the EPIC v2 arrays. In addition, epigenetic age was calculated using various epigenetic clocks. Our analysis revealed that the APOE*E2 protective variant reduces the rate of GrimAge epigenetic aging when compared to individuals with the APOE4 AD risk allele. Furthermore, our differential DNA methylation analysis discovered the association of the PCSK9 protective variant with specific biological processes related to immune function and the cardiovascular system. In conclusion, APOE*E2 protective variants have a positive impact on epigenetic aging, while PCSK9 protective variants have a significant effect on DNA methylation signatures. Further studies are needed to better understand the underlying mechanisms by which protective variants influence epigenetic aging, particularly the role of APOE*E2 protective variants in biological aging. Furthermore, additional research is required to fully uncover the processes that might enable specific targeted therapies to mimic the effects of beneficial mutations, such as LOF variants in PCSK9, in reducing the risk of geriatric disorders.

Indexed as

AgingEpigenesis, GeneticGenetic VariationAgedAlzheimer DiseaseAtherosclerosisDiabetes Mellitus, Type 2DNA MethylationFemaleHumansMaleMiddle AgedProprotein Convertase 9QatarPCSK9 protein, humanProprotein Convertase 9APOEEpigenetic agingPCSK9Progeroid syndromesProtective variantsUnimodal antigeroid syndromes

Identifiers

PMID39928272
PMCPMC12397041

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Texttitle and abstract
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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.