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. 2011 Dec;44(12):1145–1154. doi: 10.1111/j.1365-2591.2011.01935.x

Figure 1.

Figure 1

(a) Light phase-contrast microscopy images of co-cultured human gingival fibroblasts (HGF) cells in different experimental conditions: HGF, HGF-HEMA, HGF/Sm DS12, HGF-HEMA/Sm DS12, HGF/Sm ATCC and HGF-HEMA/Sm ATCC after 48 h (left panel) and 72 h (right panel) of treatment. Arrows indicate dead cells. Magnification 10×. (b) Graphic representation of cell death percentage assessed by trypan blue dye exclusion test, after 48 and 72 h of treatment. Data are the mean (±SD) of three different consistent experiments. *48 h HGF % dead cells versus 48 h HGF-HEMA % dead cells P < 0.01; *72 h HGF % dead cells versus 72 h HGF-HEMA % dead cells P < 0.01; **48 h HGF/Sm DS12% dead cells versus 48 h HGF-HEMA/Sm DS12% dead cells P < 0.05; **72 h HGF/Sm DS12% dead cells versus 72 h HGF-HEMA/Sm DS12% dead cells P < 0.05; ***48 h HGF/Sm ATCC % dead cells versus 48 h HGF-HEMA/Sm ATCC % dead cells P < 0.05; ***72 h HGF/Sm ATCC % dead cells versus 72 h HGF-HEMA/Sm ATCC % dead cells P < 0.05. Values of P < 0.05 have been considered significant.