Caspase-3/7 activity was evaluated immediately after the cell viability determination in the same wells using a synthetic rhodamine-labeled caspase-3/7 substrate (Apo-ONE® Homogeneous Caspase-3/7 Assay, G7790; Promega Corporation). After 60 minutes of cultivation at the room temperature, the fluorescence was measured (ex: 499 nm/em: 512 nm) with an FL600 fluorescence plate reader (Bio-Tek). Caspase-3/7 activity was calculated as the fluorescence readings of the treated group/mock control ×100.33 (link)