ArticleGeroScience2026
Epigenetic insights of Olympic champions: nuclear and mitochondrial DNA methylation and regulators of aging.
Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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Authors and funding
11 authors.
Funding
Abstract
The interaction between nuclear (nDNA) and mitochondrial DNA (mtDNA) methylation is not well known in the healthy population. The D-loop methylation level of the Olympic champions (N = 58) was significantly lower than that of non-champions (N = 32) (~ 36% unadjusted mean difference p = 0.016, sex and age adjusted p = 0.017). Interestingly, the robust linear analysis revealed that biological sex is a significant factor in mtDNA D-loop methylation (estimate = 1.521, p = 0.033). On the other hand, we cannot find relationships between the methylation levels of mtDNA and nuclear DNA, suggesting distinct regulation of the methylation/demethylation process of mtDNA and nuclear DNA. DNA methylation-based aging clocks showed a significant relationship with the levels of Klotho, irisin, and its receptor (irisin receptor integrin alpha-V), as well as with epigenetic regulators such as ten-eleven translocation enzyme 2, which were measured using enzyme-linked immunosorbent assay. Therefore, the data suggest a complex regulatory process of epigenetic aging and raise the possibility that D-loop methylation may have functional relevance in health, which remains to be explored.
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Registered trials
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 Socratic graph.