Figure 4. Concentration-dependent changes in cell number, cell death, apoptosis, and cell viability in As-treated hNPCs under proliferation and differentiation conditions.
Sections A, C, E and G represent the distribution of live, dead and apoptotic cells within a culture at a given dose. Significance of the effect is presented relative to controls at the corresponding time point while Sections B, D, F and H represents changes in cell count relative to controls. Significance of the effect is presented relative to the 24 h controls to show the increase in cell number through time. * = p<0.05; ** = p<0.01.