Fig. 2
From: The Korean herbal formulation Yukmijihwangtang stimulates longitudinal bone growth in animal models
Fluorescent photomicrographs of longitudinal sections of the proximal tibia in the growth plate. a Control group (distilled water), b recombinant human growth hormone (rhGH) group (20 μg/kg), c 100 mg/kg YJT group, and d 300 mg/kg YJT group. The fluorescent line corresponds to the injection of tetracycline, which binds with calcium and can be detected with ultraviolet illumination. The arrow between the fluorescent line formed by the tetracycline and the epiphyseal end line of the growth plate indicates the extent of bone growth during the 48 h study period. Scale bar = 200 μm