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Effect of crude polysaccharide (CCP-0) on granulocyte-macrophage colony-stimulating factor (GM-CSF) production by Peyer’s patch cells (A) and on bone-marrow-cell proliferation (B). Five μg/mL of lipopolysaccharide from Escherichia coli O127:B8 were used as positive control (PC); media was used as negative control (NC). Significantly different from NC at *P<0.05, **P<0.01, and ***P<0.001 by Student’s t-test.
