Fig. 3From: Association between self-rated depressive symptoms and mucosal expression of NF-κ B in patients with upper gastrointestinal symptomsDistribution of HADS-D scores by classes of immunopositivity for iNOS (A), NF-κ B (B) and MPO (C). Whereas iNOS and MPO expression were unrelated to HADS depression, there was a steady and statistically significant increase in HADS depression scores along the four groups of increasing NF-κ B expression (p = 0.032)Back to article page