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There is an interview [0] with Hoeijmakers, who has championed the idea that the single root cause for both aging and cancer are faults in dna. Faults in dna pr
by exceptione 2y ago
There is an interview [0] with Hoeijmakers, who has championed the idea that the single root cause for both aging and cancer are faults in dna. Faults in dna prevent rna copies, aka _transcription stress_. One of his theses was that if faults in dna happen randomly, we would see aging the most in the largest genes. [1]
In his experiments [2] he was able to turn the knob of dna repair, also in humans, from "organism growth" to "organism survival".
Survival mode can be induced when confronted with food scarcity. If we can unravel the underlying mechanism, we should be able to enlarge our lifespan.
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0. https://www.nrc.nl/nieuws/2024/10/11/de-geneticus-die-gezond-103-wil-worden-a4868753 https://www.nrc.nl/nieuws/2024/10/11/de-geneticus-die-gezond...
1. https://www.cell.com/action/showPdf?pii=S0168-9525%2824%2900027-1 https://www.cell.com/action/showPdf?pii=S0168-9525%2824%2900...
2. https://www.nature.com/articles/nature19329 https://www.nature.com/articles/nature19329
- zagrebian 2y agoThere was a Veritasium video about these two modes. Survival mode is triggered not just by food scarcity, but also by extreme heat, extreme cold, and one other thing (I forgot).
- FollowingTheDao 2y agoThe single greatest contributor to DNA damage is oxidative stress. For example: https://www.mdpi.com/1422-0067/23/19/11664 https://www.mdpi.com/1422-0067/23/19/11664
- exceptione 2y agoHoeijmakers mentions that. Fasting activates anti-oxidants. For example, in the Netherlands hospitals are starting to experiment with fasting before a surgery. During surgery arteries arteries are opened, bringing blood in contact with oxygen. With pre activated anti-oxidants damage will be minimized, helping with recovery.