Table II.

Proliferation inhibition rate, apoptosis rate and XIAP mRNA expression level (n=3, mean ± SD) of each group.

Group	Proliferation inhibition rate (%)	Apoptosis rate (%)	XIAP expression (FI)
Control	7.60±6.22	7.80±0.85	0.90±0.57
Cisplatin	29.83±1.60a	22.33±0.97a	0.36±0.04a
Mat
0.5 g/l	15.93±2.50a	12.63±0.85a	0.67±0.06a
1.0 g/l	23.20±2.33a, b	16.93±0.81a, b	0.50±0.03a, b
1.5 g/l	36.73±2.48a, b	27.63±0.70a, b	0.28±0.04a, b
Mat + cisplatin
0.5 g/l	46.00±1.45a, c	36.47±3.00a, c	0.21±0.02a, c
1.0 g/l	56.27±2.24a,c,d	44.03±2.06a,c,d	0.14±0.02a,c,d
1.5 g/l	68.83±1.35a,c,d	69.00±5.48a,c,d	0.07±0.03a,c,d
F-value	141.581	203.905	162.600
P-value	0.01	<0.0001	<0.0001

^aComparison with the control group;

^bcomparison with the 0.5 g/l Mat group;

^ccomparison with 0.5 g/l Mat combined with the cisplatin group; P<0.05.

^dComparison between the Mat group and Mat combined with cisplatin at different concentrations were statically significant (P<0.05). Mat, matrine; XIAP, X-linked inhibitor of apoptosis protein.