Fig. 1From: Advanced glycation endproducts and their receptor in different body compartments in COPDThe expression of AGEs in plasma, sputum, bronchial biopsies and the skin. The levels of AGEs in a plasma, b sputum, c bronchial biopsies and d skin (SAF). Horizontal lines represent median values with interquartile ranges, * p < 0.05 between groupsBack to article page