Study on arsenic trioxide inducing in vitro apoptosis of gastric cancer cell lines

Table 2 Apoptosis rate (%) of MKN45 by different treatment methods (^-x±s)

Group	Controls	5-Fu	As2O3 1	As2O3 2
24 h	4.71 ± 0.36	18.04 ± 1.50	32.33 ± 3.75a	60.02 ± 7.41b
48 h	14.90 ± 0.94	24.39 ± 3.45	90.59 ± 10.35b	97.05 ± 8.24b
72 h	28.98 ± 3.12	41.47 ± 2.24	98.10 ± 13.24b	98.75 ± 11.53b

Comparison of apoptosis rate between As₂O₃ and 5-Fu group,

^aP < 0.05 (t > 2.2262),

^bP < 0.01 (t > 3.250).