Fig. 3From: The expression of P16 and S100 associated with elastin degradation and fibrosis of the Ligamentum Flavum hypertrophyThe LDH group showed negative staining of P16 in both the dural and dorsal layers (a and b). Partially positive staining of P16 were showed in the SLSS group (c and d). The specimens in the DLSS group showed positive staining of P16, especially in the dorsal layer(e and f)Back to article page