In addition, Ishii et al. [9] reported significant regression of gastric and duodenal mucosal amyloid deposits within 4 months of starting treatment with prednisolone and etanercept in RA patients who had AA amyloidosis, and the anti-inflammatory effect of the TNF-α inhibitor was reported to promote regression of amyloid deposits. The gene discussed is TNF; the disease is amyloidosis.