Research Article
Polycyclic Aromatic Hydrocarbons from Fine Particulate Matter Induce Oxidative Stress and the Inflammatory Response in Human Vocal Fold Fibroblast Cells
Figure 5
AhR and CYP1A1 knockdown inhibited PM-induced ROS generation in hVFFs transfected with either AhR or CYP1A1 siRNA before treatment for 24 h with PM (25 μg/mL). (a) Intracellular ROS levels were determined using the DCFH-DA probe by inverted fluorescence microscopy (magnification, 200x). Green color indicates DCF-positive cells. (b) Relative intensity of DCF fluorescence. All experiments were performed in triplicate. Values are the . compared to the untreated control and compared to the PM-treated control.
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