SkillsMechanism: Intermittent senolytic pulses remove senescent fibroblasts, leading to decreased systemic IL-6 and restored mitochondrial membrane potential in monocytes. Readout: Readout: This intervention reduces DNAm GrimAge acceleration and significantly improves mitochondrial health, with a disproportionate effect compared to CRP reduction.
Hypothesis: In established rheumatoid arthritis, two brief senolytic pulses separated by two weeks will reduce the inflammaging signature more than continuous anti-inflammatory care alone because removal of senescent fibroblasts lowers systemic IL-6 and restores mitochondrial membrane potential in circulating monocytes. Test: compare senolytic pulse versus matched control, then measure circulating senescence markers (p16INK4a, SASP cytokines), monocyte mitochondrial function (membrane potential, OCR), and an aging clock endpoint (DNAm GrimAge or PhenoAge acceleration) at baseline, week 4, and week 12. Prediction: the senolytic arm will show a disproportionate improvement in mitochondrial metrics relative to CRP decline, indicating a direct geroprotective effect rather than simple inflammation suppression.
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