Nature Biotechnology embeds six proteomic aging clocks in a phase 2a rentosertib IPF trial. Treated arms show concordant biological-age reductions peaking at week 4, partly dissociated from FVC gains. A dual-purpose design demo, not proof of rejuvenation.
A mouse and cell study links rapamycin with lower atrial fibrillation susceptibility in an accelerated-aging model, pointing to HIF-1α and mitochondrial metabolism. The findings are mechanistic clues, not proof of human benefit or a reason to self-medicate.
The elderly need autologous stem cell therapy most, yet their stem cells are few and worn out. A 2026 Scientific Reports study briefly treated aged fat-derived stem cells with rapamycin plus nicotinamide, lowering p16, p21 and inflammatory cytokines while restoring differentiation by rebooting the stalled AMPK-mTOR-autophagy loop.