Statistical Analysis
Statistical analysis was performed using SPSS. The numbers of dead cells were expressed as a percentage of control (vehicle without drug) and blotted as mean ± standard error (SEM). Significant differences were determined by Student’s t-test with Bonferroni correction for multiple comparisons. A probability of more than 95% (P≤0.05) was considered significant. Correlations were made using Pearson correlation analyses. Unless otherwise indicated, values are presented as mean ± standard error (SEM).