While the antioxidants had no major effect on untreated lymphoma cells (Figure 5A), they decreased the number of caspase 3/7+ (apoptotic) cells after treatment with either plasma (Figure 5B), PEF (Figure 5C), plasma plus PEF (Figure 5D), or PEF plus plasma (Figure 5E) at 24 h post-treatment. The gene discussed is CASP3; the disease is lymphoma.