Figure 1. Effect of cis-UCA on IL-6 secretion. The HCE-2 cells (A) and HCECs (B) were either untreated (C) or exposed to different concentrations of cis-UCA for 24, 48, or 72 h. For statistical analysis, cis-UCA treated samples were compared with C samples. An asterisk indicates p<0.05, and a double asterisk denotes p<0.001 (n=6 dishes).