後輩が引き継いでくれ、論文になりました(Co-first author)。
Paf1 Counteracts transcriptional arrest to maintain rDNA stability during pol I elongation: Cell Reports https://t.co/cuR3eTOHKd
We're thrilled to announce positive Phase 1b clinical data for ATX-304, the first AMPK Network Activator to enter clinical development, presented at the American Diabetes Association's 86th Scientific Sessions.
For the first time, we have demonstrated activity of an AMPK Network Activator in humans, with statistically significant improvements in liver fat, visceral adipose tissue, triglycerides, adiponectin, and resting metabolic rate in adults with obesity and prediabetes.
The overall tolerability profile was comparable to placebo, with no adverse events indicative of mitochondrial failure, including no increase in continuously monitored core body temperature or 24-hour heart rate. A companion mechanistic poster confirmed that ATX-304 activates AMPK without decreasing cellular ATP levels, distinguishing it from prior AMPK-targeting approaches.
We look forward to advancing ATX-304 into Phase 2 studies REWIRE-1 and REWIRE-2, evaluating exercise mimetic effects and muscle-sparing weight loss.
Read the full release: https://t.co/YSbpoK7U0z
Just published on Substack: Why Epigenetic Rejuvenation Won’t Give Us Radical Life Extension — Lessons from 58 Generations of Cloned Mice.
This is my take at the results of a landmark Nature Communications paper (20+ years, 1,200+ mice, 58 generations of serial cloning with full epigenetic reset) shows it still collapses. Mutations accumulated 3× faster. Epigenetic reprogramming works… until it doesn’t. There is an irreducible level of damage that cannot be undone.
To my taste, this is a very important study. Popular literature claims cloning erases aging signatures. In short-lived species it may look that way — the entropic damage simply doesn’t have time to kill. In longer-lived animals we expect the picture be very different (and there is an anecdotal evidence for that with a lot fewer generation before the collapse).
This is also why I dislike the language of “information theory of aging.” Flipping the sign on entropy and calling that "information" (changing from the Boltzmann to Shannon equation) doesn’t repeal thermodynamics.
Of course, you can still hope for better Yamanaka factors or else. My interpretation of the experiment is not yet a proof of anything - certainly not. However, the experiment removes a lot of ground under proponents of epigenetic rejuvenation.
If you want to keep your identity, better to stop aging than try to reverse it.
Challenge me. Subscribe, Like & repost. Link: https://t.co/kBzWMfAQCp