Figure 1
From: Injectable hyaluronic-acid-doxycycline hydrogel therapy in experimental rabbit osteoarthritis
HA-DOX hydrogel showed low cytotoxicity. The influence of DOX (A), HA (B), and the HA-DOX hydrogel (C) on the survival of human chondrosarcoma cells SW1353 was assessed in 3 independent experiments using a tetrazolium-based cell viability assay. The relative number of surviving cells were quantified and normalized to that of the NT group, which represented 100% survival (*p < 0.05, **p < 0.01).