Table I.

Impact of different Ad-p53 administration methods on the serum VEGF expression levels before and after treatment.

	Serum VEGF expression level, (pg/ml) mean ± SEM
Group (n=10)	Pre-treatment	Post-treatment
Control	396.96±85.95	559.44±10.90
Ad-p53	510.75±51.17	410.86±34.60*
Ad-p53 + US	404.71±37.09	224.14±15.41**

^*P<0.05 and

^**P<0.01, vs. the control group post-treatment.

VEGF, vascular endothelial growth factor; SEM, standard error of the mean; US, ultrasonic irradiation.