Figure 4
From: No association between pyrite content and lung cell responses to coal particles
Relative cell proliferation (A), measured by WST-assay relative to control (cell only), and soluble collagen production, measured in the cell supernatant by colorimetric assay, in fibroblasts (CRL-1490) in response to 24 h exposure to 50 µg/mL (white bars) or 200 µg/mL (black bars) of coal particles (samples A–J). Data are presented as mean (SD). *p < 0.05, versus cell only; #p < 0.05, 200 µg/mL vs 50 µg/mL.
