Fig. 2From: Association between self-rated depressive symptoms and mucosal expression of NF-κ B in patients with upper gastrointestinal symptomsImmunohistological staining of iNOS, NF-κ B and MPO in biopsies of the upper gastrointestinal tract (right panel) of patients undergoing gastroscopy. Arrow heads mark areas of positive immunoreactivity. Left panel: Negative controls in the absence of inflammatory infiltratesBack to article page