Figure 2From: Essential oils purified from Schisandrae semen inhibits tumor necrosis factor-α-induced matrix metalloproteinase-9 activation and migration of human aortic smooth muscle cellsEffects of SSeo on cell viability of HASMCs. The cells were pretreated for 1 h with the indicated concentrations of SSeo, followed by incubation with TNF-α for 24 h. Cell viability was measured using the MTT assay. Each point represents the mean ± SD of three independent experiments.Back to article page