[Objective]Study on the effects of Dendribum nobile polysaccharide on tumor necrosis factor-α(TNF-α) and nitric oxide(NO) release by mouse peritoneal macrophage induced Lipopolysaccharide(LPS) in vitro.[Method]The peritoneal macrophages of mice were conducted with LPS in the presence of Dendribum nobile polysaccharide at various concentration.TNF-αwas detected by radioimmunoassay,NO content of cell culture fluid was determined by nitrate reductase method,the activity of inducible nitric oxide synthase(iNOS)...