Polygonatum Polysaccharide Regulates Macrophage Polarization and Improves LPS-Induced Acute Lung Injury through TLR4-MAPK/NF-κB Pathway

Figure 1

Ion exchange chromatography of PSP components. PSP1 was washed with deionized water, and PSP2, PSP3, and PSP4 were eluted with different concentrations of NaCl (0.05, 0.2, and 0.5 M).