Figure 2
From: Lifelong endurance training attenuates age-related genotoxic stress in human skeletal muscle
Baseline cleaved PARP-1 protein content measured in young trained (YT), young untrained (YU), old trained (OT) and old untrained (OU) participants. Cleaved PARP-1 protein content was significantly greater in OU compared with all other groups (P < 0.05). Interestingly, there was no significant difference between OT and either of the young groups. * indicates significant difference (P < 0.05).