[A] RT-PCR analysis was used to assess Col1a1 expression in vehicle treated mice (black line) and Ro 32-3555 treated mice (red line) at days 3, 7, 10, 14, 21, and 28. Col1a1 expression peaked at day 21 for both groups (vehicle: 39.9-fold increase, Ro 32-3555: 22.5-fold increase, both relative to day three vehicle treatment). However, vehicle treated mice have significantly higher expression of Col1a1 at day 21 (p<0.0001). [B] Mmp2 expression was also measured in both groups, and peaks on day 21 post-repair (vehicle: 24.2-fold increase, Ro 32-3555: 27.6-fold increase, both relative to day three vehicle).