Figure 6 (A) Effect of opuntiol on UVA-irradiation-induced apoptotic morphological changes by AO/EtBr staining. UVA-exposed cells show EtBr staining due to membrane damage and apoptotic morphological changes. Images were taken using a fluorescence microscope (original magnification, 20X). (B) Bar diagram representing percent apoptotic cell death in different experimental groups. Values are given as means ± S.D. of six experiments in each group. Values not sharing a common marking (a,b,c…) differ significantly at p ≤ 0.05 (DMRT).