Photoprotective Effect of the Plant Collaea argentina against Adverse Effects Induced by Photodynamic Therapy

Table 2

Photoprotection indexes of ALA, Verteporfin, and Temoporfin-PDT in LM2 cells.

Photosensitizer	C. argentina concentration
	10 μg/mL	20 μg/mL	40 μg/mL	70 μg/mL
ALA (PpIX)	0,02	0,10	0,92	0,84
Verteporfin	0,09	0,12	0,79	0,75
Temoporfin	0,06	0,15	0,61	0,81

Photoprotective indexes of C. argentina were determined as the ratios between % cell viability after Treatment A and % cell viability after C. argentina dark exposure, that is, without irradiation.