Fig. 1

Detection of rat alveolar bone damage by stereomicroscopy and immunohistochemical staining. (a) and (b) Alveolar bone loss in each group was measured along the long axis of the teeth using a stereomicroscope. a: P. gingivalis W83 alone; b: P. gingivalis W83 plus 6.25 μg/mL of Nal-P-113; c: P. gingivalis W83 plus 25 μg/mL of Nal-P-113; d: P. gingivalis W83 plus 100 μg/mL of Nal-P-113; e: P. gingivalis W83 plus 400 μg/mL of Nal-P-113; f: control group, without P. gingivalis or Nal-P-113. The data are presented as the means of 12 rats in each group (a). The images were selected from each group at random (b)