Figure 1. Kyphosis of a mouse with selective inactivation of STAT3 in osteoblasts/osteocytes occurs at the thoracic and lumbar regions in a radiograph (A). Histological examination at the spine (white square) shows deformity of vertebral bodies (B). Enlarged images of the histological section (yellow square) shows abnormally delayed endochondral ossicification as indication by the arrow (C). The histological section was stained with Von Kossa stain and bone tissues are stained black.