Figure 5.

Schematic representation of the experimental procedure adopted to expose human neuroblastoma SH-SY5Y cells to 1950 MHz, UMTS signal. After 48 h of growth, treatment with radiofrequency (RF)/sham was given for 20 hours, alone or in combination with 10 µM menadione (MD) added at 71 h. 72 hours after seeding, cells were harvested and processed to evaluate viability, by trypan blue dye exclusion assay, primary DNA damage, by alkaline comet assay, or gene expression, by real time RT-PCR.