PEP/NEWS — Peptide intel. Daily.

An Aging Cell study linked certain supplements and drugs to lower biological age in a cohort of exceptionally healthy people. The findings add to growing evidence that some interventions measurably shift aging clocks.

Aged T cells secrete a protein called Granzyme K that appears to drive cognitive decline. Blocking it reversed the effect in animal models — a finding with real implications for immune-aging interventions.

Senolytics — drugs that clear senescent cells — reduced age-related deterioration in dental pulp tissue. It's an unexpected application that may broaden the clinical case for senolytic therapy.

Scientists found that tau protein plays an active role in forming long-term memories. That complicates the strategy of simply clearing tau to treat Alzheimer's — the protein appears to have a necessary function.

A new argument for multi-omics clocks — which combine genomic, proteomic, and metabolic data — suggests they outperform single-data-type clocks for tracking real biological aging. Relevant for anyone using clock-based endpoints in peptide research.

A PLOS Biology perspective argues that ovarian aging governs systemic female health, not just fertility. The authors say geroscience has underweighted this organ — and that fixing that framing could unlock new targets.

Nature Aging reviews how protein-based aging clocks are being applied in large population studies. Accuracy is improving — but translating clock data into actionable clinical guidance remains an open problem.

Researchers found that omega-3s reduce cellular senescence in kidney tissue — likely explaining why prior clinical trial results were mixed. The pathway points toward senescence as the key variable, not inflammation alone.

Scientists showed that cancer cells actively remodel neighboring tissue to build a favorable niche before a tumor forms. Understanding this mechanism matters for researchers studying peptides in oncology contexts.

Research is building a case that senescent microglia — the brain's immune cells — drive cognitive decline through chronic inflammation. Clearing them may become a viable neuroprotective strategy.

A new study suggests the standard 150-minute weekly guideline falls well short of optimal. The data points toward roughly 600 minutes as the level associated with better longevity outcomes.