Fig. 7
From: Exposure to 3G mobile phone signals does not affect the biological features of brain tumor cells
Gene and protein expression levels in human glioma cells after exposure. a Real-time PCR analysis of bcl-2, bax, EMP-1, and c-myc expression in sham- or RF-exposed cells. The average of the normalized ratio of the target gene compared with actin was calculated. The relative expression levels of genes were expressed as a value of treated cells in different groups compared with a value of untreated cells. Data represent means ± SD from three independent experiments. b Analysis of Id-1 protein expression levels in U251-MG and U87-MG cells by western blotting. β-actin was used as a loading control for standardization