Figure 1.

Study design. All mice used in this experiment were given antibiotics in their drinking water for one week. After that, mice in the Porphyromonas gingivalis group received Pg orally twice per week for 6 weeks, while mice in the control group received PBS orally twice per week for 6 weeks. (a) Both groups were sacrificed before transplantation. (b) Both groups received allogenic skin grafts and were monitored until skin graft rejection. (c) Both groups received allogenic skin grafts. On day 8 after skin grafting, the mice in both groups were sacrificed.