David Sinclair Is Working On Hair Regeneration

Chads don't bald

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Yes and Sinclair is the one quoting that clock and telling people that his has gone down every year for a decade, yet here we are debating whether he is full of sh*t or not..
Half the people here have probably never taken a biology course past high school. They know jack sh*t about DNA methylation

I don't really see how anyone can think Sinclair is full of sh*t when he has literally regenerated the optic nerve in mice using reprogramming. That is revolutionary
 

trialAcc

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Half the people here have probably never taken a biology course past high school. They know jack sh*t about DNA methylation

I don't really see how anyone can think Sinclair is full of sh*t when he has literally regenerated the optic nerve in mice using reprogramming. That is revolutionary
As I said earlier in the thread, the uneducated and ignorant will expect things to be instant because they read a news article about. Then (similar to hairloss) they don't hear anything for awhile, lose interest and are not familiar with the process for these things and they call bullshit.
 

Dimitri001

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We have to look at epigenetic markers. That's why we have the Steve Horvath epigenetic clock.

"In a small trial, a cocktail of growth hormone, metformin, and dehydroepiandrosterone was investigated in nine healthy volunteers for one year. In these participants, the biological age was reduced by an average of 2.5 years, as measured by the GrimAge clock, which theoretically predicts human life expectancy [133]. " https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7990352/

Grim Age is a similar clock, looks at epigenetic markers etc.

Is this GrimAge clock something that is widely accepted as legit in the medical research community? Bass seems to be disputing the legitimacy of one such clock here


Are there other markers which could be used as a proxy for aging or a sign of aging to study whether rapa and metformin have the effects on humans that they have on animals? Something that is generally accepted?

Also, what do you guys make of some of the disputations of Sinclair's claims about fasting from the previous page. Critics make the point that:

1. he's extrapolating from animals to humans, when that's not legit because a 16 hr fast for a human is not equivalent to a 16 hr fast in a mouse (different metabolic rate, if I understand correctly)
2. that once you control for weight loss, there are no or little benefits to fasting in humans (Bass' claim - presumably, this is something studies have shown)
 

Chads don't bald

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Epigenetic clocks right now are known as the most accurate measurement of biological age: https://en.wikipedia.org/wiki/Epigenetic_clock

Also apparently the Grim Age clock has outperformed other epigenetic clocks: https://academic.oup.com/biomedgerontology/article/76/5/741/5992253

I don't know why Sinclair keeps pushing fasting and NMN so much tbh. Both of those will have little to no effect on human lifespan, and he probably knows this. NR failed to extend lifespan in mice even. Calorie restriction does extend lifespan in mice, and should theoretically also do it in humans (just eat less lol) - but at the end of the day the effects will be insignificant.

He should really just focus on reprogramming, that's the big hitter in the aging field.
 

Dimitri001

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Back to sling more mud on the Sinclair name.

Doesn't mean his claims about hairloss are false, but does bring his credibility into question and means we need to be heavily skeptical of whatever product he ends up peddling.

Unrelated to hairloss, but more on Sinclair's credibility (this is a few samples tweets from a long thread, I suggest reading the whole thread if you're interested in longevity or Sinclair's credibility):

Also this
 
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Chads don't bald

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Back to sling more mud on the Sinclair name.

Doesn't mean his claims about hairloss are false, but does bring his credibility into question and means we need to be heavily skeptical of whatever product he ends up peddling.

Unrelated to hairloss, but more on Sinclair's credibility (this is a few samples tweets from a long thread, I suggest reading the whole thread if you're interested in longevity or Sinclair's credibility):

Also this
I think Sinclair does go overboard often, however I still think that's preferable to the other scientists who are overly skeptical.

I mean look at the overall impact of their work. Brenner is working on NR. NR is going to extend lifespan by a whopping 1-2 years at most. Brenner is clearly not a risk taker. Low risk low reward.

Sinclair otoh is going for moonshots, high risk high reward. Epigenetic reprogramming, information theory of aging etc. I would rather be on this side of the fight....
 
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