When such cells are precultured for 2 days with a low dose of LPS ( 20 ng/ml ) followed by stimulation with a high dose of LPS ( 1 microgram/ml ) , expression of the TNF gene is minimal , i . e . the cells are tolerant .
when such cells are precultured for 2 days with a low dose of lps ( 20 ng/ml ) followed by stimulation with a high dose of lps ( 1 microgram/ml ) , expression of the tnf gene is minimal , i . e . the cells are tolerant .
O O O O O O O O O O O O O B-lipid O O O O O O O O O O O O B-lipid O O O O O O O O B-protein_family_or_group O O O O O O O O O O O O O