Research Article

Pinus thunbergii Parl. Extracts Reduce Acute Inflammation by Targeting Oxidative Stress

Figure 5

Effect of PTP on TNF-α expression. To measure TNF-α production, cells were pretreated with PTP (25, 50, and 100 μg/mL) or DEX (10 μg/mL), then treated with LPS (0.1 μg/mL). All values represent the mean ± SD. indicates a significant difference from the negative control group (). indicates a significant difference from the positive control group (). PTP: Pinus thunbergii Parl.; DEX: dexamethasone.