David Sinclair Profile picture
Jul 12 10 tweets 4 min read Twitter logo Read on Twitter
Grateful to share our latest publication: We’ve previously shown age reversal is possible using gene therapy to turn on embryonic genes. Now we show it’s possible with chemical cocktails, a step towards affordable whole-body rejuvenation 1/17 aging-us.com/article/204896…
For over three years, the team @harvardmed has worked long hours searching for molecules that, in combination, reverse cellular aging & rejuvenate senescent human cells 👏 C1-6 are the cocktails below vs age 2/17
To start, @JaeHyun_Yang @ChrisPetty314 and Thomas_dixon-McDougall who led the team developed high-throughput cell-based assays to distinguish young cells from old and senescent cells, including transcription-based aging clocks and a real-time nucleocytoplasmic… twitter.com/i/web/status/1…
The team identified six chemical cocktails (and more now) that restore NCC and genome-wide transcript profiles to youthful states and reverse transcriptomic age in less than a week 4/17
The team's findings build upon the discovery that genes called Yamanaka factors, can convert adult cells into induced pluripotent stem cells (iPSCs). This Nobel Prize-winning discovery raised the question of whether it might be possible to reverse cellular aging without causing… twitter.com/i/web/status/1…
We recognize the pioneering work of Alex Ocampo @ Juan Carlos Belmonte who, in 2016, showed that by switching Yamanaka factors on for short bursts made short-lived mice healthier and longer-lived. 6/17 cell.com/fulltext/S0092…
Our lab and collaborators including Bruce Ksander @MassEyeAndEar and @YuanchengLu have previously demonstrated that it is indeed possible to reverse cellular aging and restore youthful functions to tissues in vivo, without uncontrolled cell growth by virally-introducing a subset… twitter.com/i/web/status/1…
Studies on the optic nerve, brain tissue, kidney, and muscle have shown promising results, with improved vision and extended lifespan in mice and, recently, in April of this year, improved vision in monkeys 8/17 fiercebiotech.com/research/life-…
Preparations for human clinical trials of our first age reversal gene therapy are ongoing @lifebiosciences 9/17
There’s a race between many groups to show chemicals can rejuvenate cells like gene therapy can. I acknowledge these dedicated groups’ work, too, and look forward to even more exciting advancements in the coming years 🚀 10/17 @OcampoLab @gladyshev_lab @RetroBio_ @rejuvenatebio… twitter.com/i/web/status/1…

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More from @davidasinclair

Jun 30
Aspartame in diet sodas, gum and some Snapple drinks will be listed by @WHO as "possibly carcinogenic to humans," while a new study indicates another popular sweetener, Splenda, causes damage to DNA and the gut. Read on…
Articles:
Sucralose

Aspartame:
https://t.co/JL4DwPSLmUtandfonline.com/doi/full/10.10…
msn.com/en-us/money/co…
Structures:
Aspartame, a fusion of two aminos, aspartic acid and phenylalanine
Read 6 tweets
Jun 11
A nightmare substance would be one that, in low doses, protects the heart, but is toxic to the brain. According to research in the last few years, that substance is alcohol… 🍷 tinyurl.com/3kru67hn Image
Long-term drinking also induces changes in neurotransmitter systems that ultimately lead to the development of craving and alcohol-seeking behavior ncbi.nlm.nih.gov/pmc/articles/P… Image
According to scientists, 1-2 daily drinks is equivalent to the effect of aging 2 years while 2-3 daily units is equivalent to aging 3.5 years old preson
Read 7 tweets
Jun 11
SIRT1-7 enzymes protect the body. Nicotinamide riboside (NR), an NAD precursor, activates SIRT5 by raising NAD but also by binding to SIRT5, just like resveratrol, oleic acid & quercetin activate SIRT1 & long-chain fatty acids activate SIRT6. Unexpected finding for sure…
A review on activators of SIRT1 frontiersin.org/articles/10.33…
Read 4 tweets
Jun 10
Berberine, resveratrol, and NMN increase liver metabolic health potentially via the same mechanism - by increasing SIRT1 activity. If so, expect additive effects 💪 academic.oup.com/gastro/article…
The reason for the expected additive effects is the actions of the molecules on SIRT1 are seemingly different. Berberine increases the amount of SIRT1, Resveratrol binds to and stimulates SIRT1, and NMN provides SIRT1’s enzymatic fuel
Read 4 tweets
May 21
Novel combination of metformin & resveratrol alleviates fatty liver by activating autophagy via AMPK/SIRT1. Triple combo with rapamycin was the strongest effect link.springer.com/article/10.100… Image
This is a brief by interesting study of the effects of palmitic acid (a saturated long chain fatty acid) on human HepG2 liver cells. Have been on a rev - metformin combo for >8 years.. Image
Nonalcoholic fatty liver disease (NAFLD) is a prevalent liver disorder that is associated with the accumulation of triglycerides (TG) in hepatocytes [liver cells]...
Read 5 tweets
May 14
Draft illustration for a paper on age reversal & the information theory of aging (ITOA). Suggestions welcome The information theory of a...
I'm reminded how quickly discoveries came in the late 1990s and early 2000s, figuring out why yeast age and how to control yeast aging. The pace is picking up again, now in mice and monkeys
Read 7 tweets

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