| Fig 1:
Effects of arbutin, ursolic acid, and EGCG on viability of human dermal fibroblast WS-1 cells on exposure to UVAB irradiation.a aData expressed in mean±S.D. from triplicate experiments. *p<0.05 compared with blank, #p<0.01 compared with control. UVAB irradiation =UVA (385nm, 1500 μw/cm2, 100 mJ/cm2) plus UVB (302nm, 1500 μw/cm2, 100mJ/cm2). Blank: without any treatment. Concentration at 0mM: cells treated with UVAB irradiation in the absence of AB, UA and EGCG. Concentration at 0.1-10mM: cells treated with UVAB irradiation in the presence of 0.1 to 10mM of AB, UA, and EGCG, respectively. EGCG was used as the positive control |