animals, but there is limited evidence in man. We examined markers of oxidative damage to
DNA, lipids, and proteins in 66 muscle biopsy specimens from humans aged 25 to 93 years.
There were age-dependent increases in 8-hydroxy-2-deoxyguanosine (OH8dG), a marker of
oxidative damage to DNA, in malondialdehyde (MDA), a marker of lipid peroxidation, and to
a lesser extent in protein carbonyl groups, a marker of protein oxidation. The increases in …