Fig. 4. Treatments with the BACE1 specific peptide does not cause a decrease in SY5Y cell viability. (a) Confluent SY5Y cells were tested for potential toxic effects by apoptosis due to treatments of 1nm, 10nM and 100nM peptide in the media. (b) Co-treatment effects of and H₂O₂ induced oxidative stress with 1nm, 10nM and 100nM concentrations of peptide determined by cell viability percentage of live cells. Percentage data was generated by cell counts of live and dead cells (n=3). All values are reported as individual data points (n=3) and bars represent the mean percentage of live cells from individual flasks.