Figure 4.

Assessment of the cytocompatibility of scaffolds containing propranolol towards BMSCs. (A) Representative SEM images of BMSCs adhesion on the beams of no propranolol/vehicle, low propranolol/L‐Pro and high propranolol/H‐Pro scaffolds at 7 days after seeding (a‐c); magnification, 150×; cross‐section of scaffolds showing growth of BMSCs into the pores (d‐f); magnification 100×; indicated zones are high‐power (500×) images. (B) Representative flow cytometry images and (C) quantification of the proportions of live and apoptotic BMSCs after culture in scaffold‐conditioned media for 24 h (n = 3). (D) CCK‐8 assay of the toxicity of scaffold‐conditioned media towards BMSCs. Data are mean ± SEM; ns: not significant; *P <0 .05, **P < .01, ***P < .001. vs vehicle scaffolds/vehicle scaffold‐conditioned media