Purification, Preliminary Characterization, and Immunological Activity of Polysaccharides from Crude Drugs of Sijunzi Formula

Figure 7

Effects of RS-3-1, BZ-3-1, FL-3-1, and GC-3-1 on TNF-α production of RAW264.7 cells. (Adherent RAW264.7 macrophages were incubated with various concentrations of polysaccharides (1, 10, 50, 100, and 500 μg/mL) for 24 h. The DMEM medium and LPS (5 μg/mL) were used as blank and positive controls, resp. , compared with blank control).