PEP/NEWS — Peptide intel. Daily.

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Andrew Huberman, Ph.D., is a neuroscientist and tenured professor in the Departments of Neurobiology and Ophthalmology at Stanford University School of Medicine, where he runs the Huberman Lab. He is the author of Protocols: An Operating Ma

New research shows that brief biological stressors can swing methylation-based epigenetic clock readings dramatically. That's a significant problem for peptide and longevity intervention trials using clocks as primary endpoints.

Antag has dosed the first patient in a 150-person Phase 2a trial testing AT7687 plus semaglutide (a GLP-1 receptor agonist) in people with obesity or type 2 diabetes. A 13-week double-blind design should give clean signal on whether adding AT7687 meaningfully improves outcomes over semaglutide alone.

A new study separates planned exercise from general daily movement and finds only structured training reverses specific muscle aging signatures. For researchers studying anabolic peptides and GH secretagogues alongside training protocols, this distinction matters.

Using multispectral imaging across eight skin markers, Kate Tolo documents a full reversal of measured skin age to 21. The protocol detail — including topical treatments and systemic interventions — provides a real-world benchmark for aesthetic peptide researchers.

A research perspective published in Aging proposes an evidence-based roadmap for making healthy longevity a measurable objective inside Italy's universal health service. If adopted, this would be among the first national frameworks to formally track and target healthspan rather than just lifespan.

New rat and mouse data from eLife shows that titin-based mechanosensing drives a specific hypertrophy pathway in response to stretch. The downstream signaling identified here may help explain variable responses to anabolic peptide protocols in stretch-loaded muscle.

Researchers found that breaking the normal AMPK-fatty acid synthesis link prevents late-life fitness decline in yeast — even on an unrestricted glucose diet. The finding adds a new angle to the AICAR and metabolic peptide discussion around mitochondrial aging.