Longevity & AgingCirculating Tiny RNAs Predict Who Will Survive Past 70 With 92% Accuracy
Researchers profiled 828 small non-coding RNAs in blood plasma from 1,271 adults aged 71+ and found that circulating piRNAs and miRNAs are strong predictors of survival. A model combining these RNAs with clinical variables achieved 92% accuracy (AUC) for predicting 2-year survival, validated externally at 87%. Nine piRNAs—all lower in longer-lived individuals—were identified as potential drug targets. Notably, reducing piRNA biogenesis doubles lifespan in C. elegans, supporting biological plausibility. Causal modeling techniques suggest these RNAs are not merely markers but may actively drive survival outcomes, opening new avenues for longevity therapeutics.
