Fig. 7
From: Porous tantalum cage loaded with CGF promotes interbody fusion in a rat XLIF model

Immunohistochemical analysis of the interbody fusion region at 4 and 8 weeks postoperatively. (a) Representative immunohistochemical staining images showing the expression of CD31, VEGF, OCN, and RUNX2 at 4 and 8 weeks after surgery. Cytoplasmic staining of positive cells appears brown, while nuclei are stained dark blue. (b) Quantitative analysis of the proportions of CD31 and VEGF positive cells. (c) Quantitative analysis of the proportions of OCN and RUNX2 positive cells. (n = 6; Data are presented as mean ± standard deviation. Comparisons between PTa and CGF-PTa groups were performed using independent-samples t-tests. * indicates significant difference between groups: *p < 0.05, **p < 0.01, ***p < 0.001).