Fig. 3

SSTZF attenuates osteoclast activity in the intervertebral discs of LSI mice. A, B Proportion of TRAP-stained and positive cells in the endplate of the disc cartilage of the lumbar spine of LSI-operated 4W mice. Red arrows indicate positive cells. C, D Proportion of TRAP staining and positive cells in the endplate of intervertebral disc cartilage in the lumbar spine of LSI-operated 8W mice. Red arrows indicate positive cells. Data were presented as means ± S.D.*P < 0.05; **P < 0.01; ***P < 0.001; ns: no significant difference. n > 3 for each group