Figure 5: Supernatant levels of cytokines measured by Luminex 100. The values of pro-inflammatory cytokines IL-1 beta, TNF-alpha, INF-gamma and IL-12 were significantly higher in skin exposed to UVB (G2) than in controls (C). Non-UVB-exposed skin “n-UVB-”(negative control, C); non- UVB- exposed skin plus pA “n-UVB+”(Group G1); UVB-exposed skin “UVB-“(positive control, Group G2); and UVB-exposed skin plus pA “UVB+” (Group G3).* p<0.01.