Fig. 3

GH promoted DA SMC migration, but not proliferation. a Effects of growth hormone (GH) stimulation on DA SMC migration. DA SMC migration was significantly increased in the presence of GH at a concentration of 20 or 200 ng/ml (n = 6). PDGF-BB at a concentration of 10 ng/ml was used as a positive control. b The effect of GH on proliferation of rat DA SMCs. GH did not promote cell proliferation in DA SMCs (n = 6–8); 10% FBS was used as a positive control. **p < 0.01,***p < 0.001 versus 0.1% FBS. Data are expressed as means ± SEM. FBS Fetal bovine serum