Figure 1. MUC5B in human whole saliva sediments faster in the presence of EGCG.

Human whole saliva was incubated with (A) PBS, (B) 0.5 mM EGCG, (C) 1 mM EGCG or (D) 4 mM EGCG and subjected to rate-zonal centrifugation in 10–50% (w/v) sucrose gradients for 1 hour. MUC5B was detected by agarose gel electrophoresis and western blotting with the MAN-5BIII antiserum (insets). Bands were quantified using the Odyssey Imaging system.