Table 2.

Expression of apoptotic genes

Time course (hours)	Condition	Genes
		CYCS	Casp3	Casp8	Casp9
0	Normoxia	1.00 (0.58~1.73)	1.00 (0.83~1.20)	1.00 (0.83~1.22)	1.00 (0.82~1.22)
	Hypoxia	0.22 (0.17~0.27)	0.15 (0.12~0.17)	0.33 (0.27~0.40)	0.03 (0.03~0.04)*
8	Normoxia	0.36 (0.31~0.42)	0.29 (0.25~0.34)	0.35 (0.28~0.44)	0.22 (0.19~0.26)
	Hypoxia	0.20 (0.17~0.23)	0.46 (0.39~0.54)	0.21 (0.18~0.24)	0.03 (0.03~0.04)
24	Normoxia	0.38 (0.31~0.46)	1.12 (0.95~1.31)	0.32 (0.27~0.37)	0.62 (0.53~0.74)
	Hypoxia	0.41 (0.36~0.47)	6.15 (4.08~9.26)*	4.43 (3.92~5.00)*	0.63 (0.52~0.76)
72	Normoxia	0.25 (0.18~0.36)	0.29 (0.25~0.34)	0.31 (0.26~0.38)	0.10 (0.08~0.13)
	Hypoxia	1.02 (0.86~1.21)	2.47 (2.14~2.85)*	3.10 (2.52~3.81)*	1.42 (1.16~1.75)*

The genes expression levels were calcaulted by the 2^-ΔΔCT method. Data were presented as 2^-ΔΔCT and range.

^*Indicated significance (p < 0.05) when compared with normoxia or hypoxia.

CYCS, Cytochrome C, Somatic; Casp, caspase.