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

Figure 4

The effects of the bFGF concentration on fibroblast proliferation in CGS. CGS indicates that bFGF was added to CGS. Liquid indicates that bFGF was added to small tubes and kept under the same conditions. x indicates the number of days. Control samples P 4 indicated samples treated with DMEM + 0.1% FBS (N=6). The results are expressed as a ratio of the optical density (OD) values to the OD results of control samples P2 (samples treated with DMEM with 10%FBS). 1-way ANOVA, Tukey’s multiple comparisons test. p<0.001 and p<0.01.