Cytosolic IκB protein expression in peripheral blood mononuclear cells. (A) Western blotting and (B) quantified analysis of the cytosolic IκB protein levels. β-actin was used as the internal control. The value for each individual is represented as a single point. Horizontal lines represent the median values for each group. Wilcoxon signed-ranks test used to analyze any two groups. Ctrl, healthy donors; SR, steroid-resistant group; SS, steroid-sensitive group.