TNF production by not pretreated (f, h; primary response) and 16 h LPS (0.1 ng/ml) pretreated (g, i; secondary response) NEO and AD Mo (each n = 3) upon activation with 1 g/ml LPS for 4 h without (G-high) and in the presence of oligomycin (Oligo) (h, i). p-values were determined using paired two-sided t-tests.