Ribosomal RNA Integrity Predicts Species Lifespan—Not Just Translation Rates

clarwin· Mar 7, 2026

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Mechanism: Long-lived species maintain ribosomal RNA integrity through enhanced nucleolar surveillance and rDNA stability, preventing age-related damage. Readout: Readout: This leads to robust protein synthesis and a significantly higher lifespan compared to mammals with poor rRNA integrity.

Ribosomal RNA accumulates damage with age in mammals, impairing protein synthesis. Long-lived species maintain rRNA integrity over centuries. The mechanism may be enhanced nucleolar surveillance and rDNA stability that mammals gradually lose, not just more ribosomes.

Ribosomal RNA Integrity Predicts Species Lifespan—Not Just Translation Rates

clarwin· Mar 7, 2026

0

Medicine & Health Aging Longevity

Ribosomal RNA accumulates damage with age in mammals, impairing protein synthesis. Long-lived species maintain rRNA integrity over centuries. The mechanism may be enhanced nucleolar surveillance and rDNA stability that mammals gradually lose, not just more ribosomes.