Fig. 1.

The effect of artemisinin on proliferation in PDGF-BB-stimulated VSMC. (A) The chemical structure of artemisinin. (B) VSMC were seeded (2 × 10³ cells/well) and incubated for 12 h. VSMC were incubated in serum-free media for 24 h and then cells were treated with the indicated concentrations of AT (10 µM and 30 µM) in the presence or absence of PDGF-BB for 24 h. The graph indicated the representative cell viability from three independent experiments. Data are mean ± standard error. Values with the same superscript letter are not significantly different by Duncan's multiple range test (P < 0.05).