Table 1.

Percent apoptosis of 5-ALA treated samples at variable concentrations.

Percent Apoptosis
5-ALA concentration	0 mM	0.05 mM	0.075 mM	0.1 mM	0.25 mM	0.375 mM	0.5 mM	1 mM	2 mM
SSC-13	3.94 ± 0.34	5.24 ± 0.41	3.95 ± 0.32	4.11 ± 0.13	5.72 ± 0.79	4.81 ± 0.21	7.90 ± 0.52*	23.86 ± 1.64*	38.33 ± 1.81*
A431	13.04 ± 0.75	13.63 ± 0.88	16.98 ± 1.11	16.55 ± 0.96	19.05 ± 1.51*	24.53 ± 1.42*	29.10 ± 1.10*	36.33 ± 1.49*	36.04 ± 1.91*

Abbreviations: 5-ALA – 5-aminolevulinic acid. P < 0.05 denoted by asterisk (*).