Figure 3: PDGF-AA and BDNF do not protect NPCs from undergoing apoptosis. NPCs were exposed to harsh, growth factor deprived media which induces cell death in the presence and absence of PDGF-AA and BDNF to assess the neuroprotective potential of these factors. A UV/Annexin flow cytometry assay was used to label cells that are dead and dying. Scatterplots are presented above and the number of live healthy cells is quantified in the bottom left corner as the number of cells that do not stain for either UV or Annexin over the total number of nuclei counted. Complete media (protective against death) and minimal media (death-inducing) are used as controls. *significance, p<.05.