Fig. 2

Relative protein expression of MAO-A, MAO-B, VMAT1 and VMAT2 after TNF stimulation. Synovial fibroblasts were treated with TNF (10 ng/mL) for 72 h or left untreated. Protein levels of MAO-A (a), MAO-B (b), VMAT1 (c) and VMAT2 (d) determined by WB. (n = 5) * p < 0.05, for comparisons between TNF treated and untreated cells by paired t-test. Ctl (black), control group without TNF stimulation; TNF (red), tumor necrosis factor stimulated