Fig. 4. Comparative analyses of the cell proliferation index (a) and apoptosis (b) among the NCCtrl (n=5), NCCaf (n=5), CyCtrl (n=5) and CyCaf (n=6) groups. Caffeine: cystic (CyCaf) and noncystic (NCCaf) and controls: cystic (CyCtrl) and noncystic (NCCtrl). ** p<0.01, *** p<0.001.