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Greater longevity in rats is associated with lower lipid peroxidation at 24 mo of age. Brain (A), muscle (B), kidney (C), heart (D), and liver lipid peroxidation (E) is significantly suppressed in 24-mo-old rats relative to mice (n = 4–8, P < 0.05). MDA, malondialdehyde. aSignificant with respect to mice.
