Figure 2

Immunodistribution of bLF absorbed from intestinal tract in various rat organs. (a) Intestinal tract. Some intestinal epithelial cells ( → ) were positively stained for bLF. (b) Negative control. (c, d) Epiphyseal region of femur. Numerous osteoblasts ( → ) lined surface of bone trabeculae and chondrocytes (▴) were intensely positive for bLF. (e) Periodontal area. In addition to fibroblasts, osteoblasts, cementoblasts, odontoblasts ( → ) were positive for bLF. Scale bars: 100 μm.