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SIRT6 protein could protect against age-related breakdown in chromatin, possibly help reverse aging

Phys · · 527 words · By Bar-Ilan University
Epigenetic Aging Rejuvenation Biology Medical Research

Researchers at Bar-Ilan University have found that increasing SIRT6 protein levels in old mice can restore youthful DNA organization in the liver. The study suggests that age-related chromatin breakdown is reversible, potentially offering a new direction for rejuvenation biology.

open_in_new Read the original article: https://phys.org/news/2026-05-sirt6-protein-age-breakdown-chromatin.html

analyticsAnalysis

10%
Propaganda Score
confidence: 95%
Low risk. This article shows minimal use of propaganda techniques.

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Loaded Language 70% confidence
Using words with strong emotional connotations to influence an audience.

fact_checkFact-Check Results

8 claims extracted and verified against multiple sources including cross-references, web search, and Wikipedia.

info Single Source 8
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“Researchers at Bar-Ilan University have successfully restored youthful patterns of DNA organization in the livers of old mice”
SINGLE SOURCE
One web search result from Xinhua reports that researchers from Israel and the US increased SIRT6 levels in 2-year-old mice and the liver's chromatin patterns reverted to a youthful state. While it mentions 'researchers from Israel', it doesn't explicitly name Bar-Ilan University in that specific snippet, though other snippets confirm Bar-Ilan's research focus on longevity. Only one specific news source provides the core fact of the liver restoration.
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wikipedia NEUTRAL — Aren Maeir (Hebrew: ארן מאיר; born 1958) is an American-born Israeli archaeologist and professor in the Department of Land of Israel Studies and Archaeology at Bar-Ilan University. He is director of t…
https://en.wikipedia.org/wiki/Aren_Maeir
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wikipedia NEUTRAL — Haim Cohen (Hebrew: חיים כהן; born April 12, 1968) is an Israeli scientist. He is full professor at the Faculty of Life Sciences at Bar Ilan University who studies the molecular mechanisms that determ…
https://en.wikipedia.org/wiki/Haim_Cohen
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wikipedia NEUTRAL — Ido Bachelet (Hebrew: עידו בצלת) is an Israeli-Chilean scientist.
https://en.wikipedia.org/wiki/Ido_Bachelet
+ 3 more evidence sources
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“The study, published in Nature Communications, identifies the protein SIRT6 as a powerful protector against age-related breakdown in chromatin”
SINGLE SOURCE
Web results discuss SIRT6's role in senescence, DNA damage, and deacetylase activity in various contexts (disc health, cardiomyocytes), but none of the provided evidence mentions a specific study in 'Nature Communications' identifying it as a protector against chromatin breakdown in the liver.
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web search NEUTRAL — Taken together, our study highlights the contribution of SIRT6 in modulating DNA damage, autophagy, and cell senescence and its importance in maintaining disc health during aging, thereby underscoring…
https://www.nature.com/articles/s41413-025-00422-3?error=coo…
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web search NEUTRAL — Previous studies indicated that SIRT6 exhibits poor deacetylase activity in vitro. Here, we explored the specific conditions that allow SIRT6 to function as a significant deacetylase.
https://archive.org/stream/pubmed-PMC3794599/PMC3794599-gkt6…
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web search NEUTRAL — The present study identified SIRT6, an important subtype of NAD+ dependent class III histone deacetylase, to be a negative regulator of NFATc4 in cardiomyocyte hypertrophy.
https://www.researchgate.net/publication/302032285_A_Chemica…
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“aging disrupts chromatin architecture in the liver, causing inflammatory pathways to become overactive while weakening the metabolic programs that define healthy liver tissue”
SINGLE SOURCE
The provided evidence contains general definitions of aging from Wikipedia, Mayo Clinic, and Cleveland Clinic, but does not provide specific scientific evidence regarding chromatin architecture in the liver or the specific inflammatory/metabolic pathways mentioned.
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web search NEUTRAL — Ageing (or aging in American English) is the process of becoming older. The term refers mainly to humans, many other animals, and fungi; whereas for example, bacteria, perennial plants and some simple…
https://en.wikipedia.org/wiki/Ageing
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web search NEUTRAL — Nov 1, 2024 · You know that aging likely will cause wrinkles and gray hair. But do you know how getting older will affect your teeth, heart and sexuality? Find out what changes to expect as you age — …
https://www.mayoclinic.org/healthy-lifestyle/healthy-aging/i…
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web search NEUTRAL — Sep 2, 2025 · Aging is the process where your cells change function or die, causing your body to decline. Cell damage and senescence, gene changes and other factors lead to aging.
https://my.clevelandclinic.org/health/articles/aging
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“when the scientists increased SIRT6 levels in already old mice, many of these age-related chromatin changes reversed”
SINGLE SOURCE
The Xinhua report mentions that increasing SIRT6 levels in 2-year-old mice caused liver chromatin patterns to revert to a youthful state. Other results discuss SIRT6 in oocytes or general deficiency, but only the Xinhua source corroborates the specific reversal in old mice livers.
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web search NEUTRAL — SIRT6 overexpression in aged oocytes increases the telomere length in early embryos. (A) Schematic presentation of the SIRT6 overexpression experiments. (B) Efficiency of SIRT6 overexpression (SIRT6-O…
https://pmc.ncbi.nlm.nih.gov/articles/PMC6503879/
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web search NEUTRAL — Sirt6cKO mice also showed some changes in the vertebral cortical bone parameters such as increased cortical porosity (Fig. S2A, B, F). Since disc degeneration is accompanied by cell death, we performe…
https://www.nature.com/articles/s41413-025-00422-3?error=coo…
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web search NEUTRAL — The team wondered if this aspect of ageing could be reversed by increasing the amount of SIRT1 in the cells. To find out if that was possible, they injected 22-month-old mice twice daily for a week wi…
https://www.newscientist.com/article/dn24784-turning-back-ti…
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“The researchers also identified a specific chromatin marker known as H3K9ac that appears closely linked to age-related chromatin opening and inflammatory activation”
SINGLE SOURCE
While one source mentions chromatin acetylation and opening at TNFα and IL6 genes in insulin-resistant women, there is no evidence in the provided text linking the specific marker H3K9ac to age-related chromatin opening in the liver.
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web search NEUTRAL — RESULTS: ChIP-seq identified chromatin acetylation and opening at the genes coding for TNFα and IL6 in insulin-resistant women. Pathway analysis identified inflammatory response genes, NFκB/TNFα-signa…
https://escholarship.org/uc/item/4n31g05b
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web search NEUTRAL — 2.4. Chromatin Accessibility and Transcription of Chromatin States. Chromatin accessibility or openness is another important epigenetic characteristic besides the chromatin state [37]. The openness of…
https://pmc.ncbi.nlm.nih.gov/articles/PMC10253722/
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web search NEUTRAL — (B) Chromatin opening at the Albumin and Hnf4α genes was measured by the micrococcal nuclease (MNase) assay in Baf60b-knockdown (sh1-Baf60b) TTFs and scramble controls after 3TF transduction.
https://www.researchgate.net/figure/Baf60b-links-chromatin-o…
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“SIRT6 helped restore a younger chromatin pattern at these sites”
SINGLE SOURCE
No evidence provided discusses the restoration of chromatin patterns at H3K9ac sites by SIRT6. The search results for this claim were irrelevant (Golden State Warriors).
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web search NEUTRAL — The Golden State Warriors are an American professional basketball team based in San Francisco. The Warriors compete in the National Basketball Association (NBA) as a member of the Pacific Division of …
https://en.wikipedia.org/wiki/Golden_State_Warriors
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web search NEUTRAL — Apr 17, 2026 · The Golden State Warriors have signed Head Coach Steve Kerr to a multi-year contract, the team announced. Kerr has coached 12 NBA seasons, all with Golden State, and is the winningest h…
https://www.nba.com/warriors/
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web search NEUTRAL — Visit ESPN for Golden State Warriors live scores, video highlights, and latest news. Find standings and the full 2025-26 season schedule.
https://www.espn.com/nba/team/_/name/gs/golden-state-warrior…
info
“The research was led by Ph.D. students Ron Nagar and Zacharia Schwartz, from the Mina and Everard Goodman Faculty of Life Sciences and the Sagol Healthy Human Longevity Center at Bar-Ilan University, together with collaborators from Tel Aviv University and the National Institute on Aging, including Prof. Rafael de Cabo and his team”
SINGLE SOURCE
The evidence confirms Bar-Ilan University has a Faculty of Life Sciences and that Tel Aviv University does research on SIRT6, but there is no mention of Ron Nagar, Zacharia Schwartz, or the specific collaboration with Rafael de Cabo in the provided text.
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web search NEUTRAL — Bar-Ilan University has nine faculties: Exact Sciences, Life Sciences, Social Sciences, Education, Humanities, Jewish Studies, Medicine, Engineering, and Law. There is also a special Unit of Interdisc…
https://en.wikipedia.org/wiki/Bar-Ilan_University
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web search NEUTRAL — 4 Department of Human Molecular Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel. 5 Department of Health Chemistry, Showa Pharmaceutical University…
https://pubmed.ncbi.nlm.nih.gov/41218122/
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web search NEUTRAL — At Bar-Ilan University, the guideline for research, in all areas, is “Influencing Tomorrow, Today.” This is the case in all of BIU’s faculties, research institutes and multidisciplinary impact centers…
https://cris.biu.ac.il/en/
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“Ron Nagar et al, SIRT6 overexpression counteracts chromatin aging in the male murine liver, Nature Communications (2026). DOI: 10.1038/s41467-026-73115-y”
SINGLE SOURCE
The provided evidence for this claim consists of general definitions of 'paper' and a tutoring service; there is no record of the specific Nature Communications paper or DOI provided in the claim.
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web search NEUTRAL — Largely derived from lignocellulose, paper is created from a pulp dissolved into a slurry that is drained and dried into sheets. Different types of paper are defined by constituent fiber, paper pulp, …
https://en.wikipedia.org/wiki/Paper
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web search NEUTRAL — Beyond high-impact tutoring, Paper provides on-demand academic support to help students get unstuck, ask questions, and build confidence across subjects. Paper offers tools that help teachers extend i…
https://paper.co/
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web search NEUTRAL — At its core this is definitely a casual game: after all, all you need to do is steer a colored square on a blank sheet of paper, covering it with paint, effectively identifying your captured territori…
https://paperio.site/
info Disclaimer: This analysis is generated by AI and should be used as a starting point for critical thinking, not as definitive truth. Claims are verified against publicly available sources. Always consult the original article and additional sources for complete context.