Smoking and inflammatory bowel disease: comparison with lupus erythematiosus. A case-control study
Smoking is rare in patients with ulcerative colitis (UC). Onsets are common after stopping smoking. Several observations suggest possible immunologic mechanisms in UC. As smoking has an immunosuppressive effect, a possible role of smoking in UC could be immunosuppression. In this study an analogous hypothesis was investigated by studying smoking habits in patients with systemic lupus erythematosus
