Fig. 3

Cell viability of SHSY 5Y cells exposed to CBN (A), CBN-Ac (B), THC (C), THC-Ac (D) and THCA (E). Cells were exposed for 24 h to each condition and then the cell culture medium was replaced by resazurin 4 mg/L and the resulting fluorescence was read in a Varioskan multimode plate reader. The results represent three independent experiments, each one performed with triplicates (n = 3). Bars correspond to the standard error