FIG. 4.
Bioluminescence imaging of firefly luciferase expression for scaffolds with 800 µg of pLuc input to the process until 105 days postimplantation. (A) Images showing a single mouse at different time points. (B) In vivo CCD signal intensity (photons/s) at implant sites (n = 6). (●) Scaffolds incorporating pLuc, (□) no DNA, (◇) empty vector, (×) background. *Statistical significance at P < 0.05 between pLuc and all other conditions for all time points less than or equal to 105 days.