Research Article

Polycyclic Aromatic Hydrocarbons from Fine Particulate Matter Induce Oxidative Stress and the Inflammatory Response in Human Vocal Fold Fibroblast Cells

Figure 3

PM induced lipid peroxidation and oxidative DNA damage generation in hVFFs. (a, b) After treatment with 25 μg/mL PM for 24 h, lipid peroxidation was evaluated by 4-HNE immunoreactivity and oxidative DNA damage was evaluated by 8-OHdG immunoreactivity, respectively (red, magnification: 200x). Nuclei were stained with DAPI (blue). (c, d) Quantification of the fluorescence intensities of 4-HNE and 8-OHdG, respectively. All experiments were performed in triplicate. Values are the . compared to the control.
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