Fig. 1
From: Influence of chlorpyrifos exposure on UVB irradiation induced toxicity in human skin cells
Cytotoxic effect of CPS and/or UVB irradiation on HaCaT cells (A) and BJ cells (B). Results are expressed as a percent of the total LDH activity of the control sample. a denotes statistically significant difference of means from control (cells not treated with CPS nor UVB), b denotes statistically significant difference between CPS and UVB treated cells, as compared to UVB treatment alone. Two-way ANOVA and post-hoc comparison by Bonferroni test, P < 0.05. Mean ± SD, (n = 3), CPS, chlorpyrifos