Effect of targeted magnetic nanoparticles containing 5-FU on expression of bcl-2, bax and caspase 3 in nude mice with transplanted human liver cancer

Table 2 Intensity of staining of bcl-2, bax and caspase 3 proteins (mean ± SD)

Group	n	Bcl-2	Bax	Caspase 3
A	8	0.1185 ± 0.0111	0.1031 ± 0.0119	0.0806 ± 0.0073
B	8	0.1161 ± 0.0094	0.1090 ± 0.0141	0.1067 ± 0.0075
C	8	0.0981 ± 0.0121a	0.1375 ± 0.0084a	0.1284 ± 0.0074a
D	8	0.0768 ± 0.0119ab	0.1587 ± 0.0086ab	0.1468 ± 0.0080ab

^aP < 0.01 vs groups A and B;

^bP < 0.01 vs group C.