Collagen/Gelatin Sponges (CGSs) Provide Both Protection and Release of bFGF: An In Vitro Study

Figure 2

The effect of the bFGF concentration. (a) The effect of the bFGF concentration on the fibroblast proliferation in DMEM or DMEM supplemented with 2% FBS is reported. The results are expressed as a ratio of the optical density (OD) values of each samples to the OD results of control sample P2 (samples treated with DMEM with 10%FBS). (b) The bFGF content determined by an ELISA assay (N=5) in samples kept at 37 degrees for 1, 2, 3, 5, 7, and 14 days. 1-way ANOVA, Tukey’s multiple comparisons test. p<0.001 and p<0.01.

(a)

(b)