Several studies have suggested that flavonoid compounds induce apoptosis of cancer cells and does not induce cell death of normal cells; in our study, kaempferol treatment did not change the activity of caspase 3/7 in neuroblastoma and in other cancer cells at 50 μM concentration; the effect of kaempferol in normal cells yet to be tested. The gene discussed is CASP3; the disease is neuroblastoma.