Research Article

Geniposide, a Principal Component of Gardeniae Fructus, Protects Skin from Diesel Exhaust Particulate Matter-Induced Oxidative Damage

Figure 4

Effects of GFE on apoptosis in DEP-stimulated HaCaT cells. (a) Percentages of apoptotic cells were determined using an Annexin V & Dead Cell kit. Cells were pretreated with GFE (10, 100 μg/ml) for 1 h and then stimulated with DEP (100 μg/ml) for 24 h. (b) The expressions of Bax, Bcl-2, and cytochrome C were determined by western blot. (c) Densitometry analysis of Bax, Bcl-2, and cytochrome C expression. Data are presented as mean ± SD (n = 3). vs. normal controls (NC), vs. DEP treated cells.
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