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Effects of curcumin on Prevotella intermedia lipopolysaccharide (LPS)-induced phosphorylation of STAT1 in RAW 264.7 cells. Cells were incubated with different doses of curcumin (0, 1, 5, 10, and 20 µM) in the absence or presence of P. intermedia LPS (10 µg/mL) for 4 hours. Expression of phospho-STAT1 was measured by immunoblot analysis of cell lysates. Total-STAT1 was used as an internal control. A representative immunoblot from two separate experiments with similar results is shown.
