Figure 2 of Viiri, Mol Vis 2009; 15:1799-1805.

Figure 2. Effect of cis-UCA on UV-irradiation-induced IL-6 secretion. The HCE-2 cells (A) and HCECs (B) were non-irradiated (C) or UV-irradiated (UV; lower panels), or exposed to different concentrations of cis-UCA or UV irradiated and treated with cis-UCA for 24, 48, or 72 h (upper panels). For statistical analysis, cis-UCA+UV samples were compared with UV samples. An asterisk indicates p<0.05, and a double asterisk denotes p<0.001 (n=6 dishes).