Fig. 1

Cytotoxicity of PCA with or without LPS in HDF cells. Cell viability in HDF cells were measured by WST-1 assay with different concentrations of PCA (0–100 μM) and LPS (1 μg/mL) for 24 h. Black bar represents the cell viability of indicated concentrations of PCA without LPS treatment. White bar represents the cell viability of PCA co-treated with LPS. Data are expressed as mean ± standard deviation