PEP/NEWS — Peptide intel. Daily.

Guy Oseary has been spotting talent before anyone else could see it for nearly four decades. Under his leadership at Maverick Records, Maverick sold more than 100 million albums. Guy has managed some of the biggest names in music, including

Guy Oseary has been spotting talent before anyone else could see it for nearly four decades. Under his leadership at Maverick Records, Maverick sold more than 100 million albums. Guy has managed some of the biggest names in music, including

Researchers used tiny vesicles released by mesenchymal stem cells to fight fatty liver disease in mice. The approach sidesteps full stem-cell transplant and could be easier to standardize for research.

Johnson outlines the cardiovascular stack he credits for vascular function scores equivalent to someone in their late teens. No peptides involved here — the focus is lifestyle architecture and measurable biomarkers.

A new study suggests that aging-related or mutation-driven inflammation in peripheral tissues spreads to the brain via circulating extracellular vesicles. It reframes Parkinson's as partly a systemic disease — not purely a brain disease.

Researchers found that disrupting a specific signaling chain — CDK4/6 to RARα to NF-κB (a master switch for inflammation) — reduced the inflammatory activity of senescent cells. The approach also improved function in chemotherapy-treated animals.

Part one of a three-part deep dive from Research Vials maps the biological pathways that cancer cells exploit — and sets up why some peptides interact with those same pathways. Required reading before the GH secretagogue risk discussion in Part 3.

Muscle mitochondrial oxidative capacity — how well mitochondria in muscle burn fuel — predicted cognitive decline over a decade. The relationship differed between men and women, pointing toward sex-specific targets for intervention.

Revel Pharma developed CMLase — an enzyme targeting CML (a specific AGE that forms crosslinks in the extracellular matrix, stiffening tissue over time). Breakdown of these crosslinks could restore elasticity lost through normal aging.

Senescent cells (damaged cells that stop dividing but don't die) cluster a key protein called CTCF onto nuclear speckles. This rewires how genes are spliced — potentially explaining part of how senescent cells alter tissue behavior around them.