Mechanism: Long-lived species maintain high constitutive expression of antioxidant genes like SOD and Catalase, driven by enhanced Nrf2 activity and accessible Antioxidant Response Elements. Readout: Readout: This leads to lower cellular Reactive Oxygen Species (ROS) and a significantly reduced 'Aging Score' compared to typical aging mammals.
Mammalian antioxidant defenses are primarily stress-inducible. Baseline expression is low. Long-lived species maintain high constitutive expression of SOD, catalase, and peroxiredoxins. The mechanism may be enhanced Nrf2 activity and antioxidant response element accessibility that mammals lose with age.
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