Figure 2.

Cell viability on CCF-STTG1 cells measured by MTT test. Green tea titrated 40% EGCG = 100 μM; saffron titrated 0.3% crocin = 25 μM; citicoline = 100 µM; trans-R = 1 µM; MIX = green tea 100 μM + saffron 25 μM +citicoline 100 µM + trans-R 1 µM. The results are expressed as mean ± SD (%) of five independent experiments normalised to the control (0 line corresponding to 100% cell viability), each performed in triplicate and expressed as the percentage increased.  ^∗p < 0.05 vs. control; ^#p < 0.05 vs. green tea, saffron, citicoline, trans-R.