Fig. 7From: Protective effect of calcitonin on lumbar fusion-induced adjacent-segment disc degeneration in ovariectomized ratImmunohistochemistry assay for a Col-I, b Col-II, c Aggrecan, d MMP-13, and e ADAMTS-4 in the annulus fibrosus in different groups (40×). Col-I-, MMP-13-, and ADAMTS-4-positive staining in the annulus fibrosus was weaker in the OVX + PLF + sCT group compared with the OVX + PLF + V group. Col-II- and Aggrecan-positive staining in the annulus fibrosus was stronger in the OVX + PLF + sCT group compared with the OVX + PLF + V groupBack to article page