Figure 1
From: Lifelong endurance training attenuates age-related genotoxic stress in human skeletal muscle
Baseline total PARP-1 protein content measured in young trained (YT), young untrained (YU), old trained (OT) and old untrained (OU) participants. Total PARP-1 protein content was significantly greater in OT compared with both young groups and was significantly greater in OU compared with YU. There was also a trend for OU being greater than YT (P = 0.086) * indicates significant difference (P < 0.05).