Fig. 1

Analysis of E. faecalis-induced apoptotic osteoblasts in early and late phases using Annexin V-FITC/PI staining. a Primary osteoblasts were infected with E. faecalis OG1RF at MOIs of 10, 100, 500, and 1,000 for 6 and 12  h. The apoptotic cells were evaluated using flow cytometry. b Percentages of apoptotic cells in the early and late phases. *P < 0.05 and **P < 0.01 versus the control group. ^#P < 0.05 and ^##P < 0.01 versus the early apoptosis groups at the corresponding MOI and infection time point