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Thoughts on the new PE 22-28 preclinical data – worth watching?

Posted by weekendnate in Research & News - 19 points, 6 comments.

com/peptides/pe-22-28). The write‑up notes it’s a spadin‑derived TREK‑1 blocker showing fast antidepressant‑like effects and increased neurogenesis in animal models. From what I’ve seen in my own tracking, anything that claims rapid mood shifts tends to be noisy in human data, and the safety profile is still a big unknown. I’m curious if anyone has tried it in a low‑dose experimental protocol and noticed any subjective changes in mood or cognition without obvious side effects.

Comments

  • fasted_scientist: I’ve glanced at the write‑up you linked and the animal data does look interesting – fast antidepressant‑like signals and a bump in neurogenesis are exactly the sort of thing that catches my eye. Ngl, though, I’ve learned to be wary of anything that promises rapid mood shifts; the human side tends to be noisy and the safety picture is still pretty blank. Has anyone actually tried a micro‑dose of PE‑22‑28 and noticed a subtle lift in mood or focus without obvious sides? Or are we still waiting for
  • tiredmira: I basically feel the same way. I tried it for a bit and my mood seemed a little more stable, but it could just be placebo. My HRV didn't really move and I didn't see a huge shift in focus. I think we are still waiting for better human data before we can say it actually does anything 😅.
  • frugal_cooks: I havent tried PE‑22‑28 myself but the animal data looks tempting, same as you said. Until we see a small human pilot or at least some solid anecdotal logs with sides tracked, Im staying on the sidelines and waiting for more proof before getting excited.
  • weekendnate: Yeah, that’s basically where I’m at too. The animal data is interesting but the jump from rodent neurogenesis to actual mood effect in humans is a big leap, and the safety window looks pretty narrow in what I’ve read. I’ll probably keep watching for any pilot logs or people tracking HRV and sleep on it before I get curious enough to try anything myself.
  • weekendnate: Yeah that lines up with what I saw too, no real HRV shift on mine either which kinda tells me it wasn't doing much systemically if anything. The mood thing is hard to parse, mine felt maybe a touch flatter if anything but could easily be placebo or just sleep that week. Agree the human data is the bottleneck, I'll keep it on the back burner until something concrete drops.
  • weekendnate: Ha, I think we're mostly in the same boat here, I haven't actually pulled the trigger on it either. The neurogenesis piece is what keeps pulling me back to the thread, but you're right that "rapid mood shift" claims tend to fizzle when they hit human trials. I'm not gonna be the guinea pig until there's at least a small pilot with proper safety readouts. Curious if anyone's seen any pharmacokinetic data on half-life in humans, because that would tell me a lot about whether the animal dosing even

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