Time of treatment (h) % apoptotic cells ± SD (p value)
0 8.1 ± 2.2
4 9.6 ± 1.27 (0.364)
12 13.4 ± 3.83 (0.1062)
16 16.12 ± 5.29 (0.0724)
24 25.29±5.7 (0.008)
36 33.75 ± 5.30 (0.0015)
48 44.5 ± 6.5 (0.0008)
P-values were calculated at each dose with respect to untreated control and shown within bracket.
Table 2: Induction of apoptosis by 5 mM benzamide in K562 cells at different time of treatment.