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. Author manuscript; available in PMC: 2014 Jul 1.
Published in final edited form as: Free Radic Biol Med. 2013 Feb 27;60:347–354. doi: 10.1016/j.freeradbiomed.2013.02.023

Fig. 8.

Fig. 8

Cell viability after treatment with hypericin and UVA irradiation. Cells seeded into the wells of microtiter plates and allowed to grow until 80–90% confluence were incubated with either DMSO (0 μM) or hypericin in DMSO for 1 h at 37 °C in the dark. After washing with buffer the cells were exposed to 40 min of UVA irradiation and then assayed for viability. The data presented represent the average for 3 wells per treatment and are expressed as a percentage of the positive (0 μM hypericin) control.