PEP/NEWS — Peptide intel. Daily.

A large US adult cohort study finds that higher diet quality scores correlate with slower epigenetic aging — and that the effect is large enough to translate into measurable mortality risk differences, adding weight to dietary interventions as a longevity tool.

Transplanting an aged gut microbiome into younger hosts disrupts transcriptional regulation of the intestinal mucosa and weakens immune surveillance — a mechanistic link between microbiome aging and systemic vulnerability.

Researchers propose a vascular age estimation model that outperforms chronological age in predicting cardiovascular disease — a practical step toward individualized cardiovascular risk stratification.

Advanced glycation end products suppress SIRT1 to activate bone-resorbing osteoclasts and push cartilage cells into senescence — identifying a metabolic-aging link with direct implications for osteoarthritis treatment.

A Nature Aging perspective argues the stiffening, cross-linked extracellular matrix of aged tissue creates a structural environment that traps and sustains senescent cells — suggesting ECM remodeling as a complementary senolytic strategy.

Analysis of secreted proteins from calorically restricted humans identifies complement pathway deactivation as a key immunometabolic mechanism — offering a molecular explanation for CR's anti-inflammatory effects.