Fig. 4.
Immunohistochemical staining of the intervertebral disc for BAX. A : The chondrocytes of the intervertebral disc in primary group were stained moderately by BAX (Immun-Peroxidase, original magnification 100). B : In contrast, the chondrocytes of the intervertebral disc in the recurrent group were stained mild by BAX (Immuno-Peroxidase, original magnification 100). BAX : Bcl-2-associated X protein.