“…2 The etiology is not clearly understood; however, the occurrence of the disease has been attributed to several causes, including infectious agents, vascular endothelial pathologies, immunologic and environmental factors, hormones and clotting factors. 3,4 Cytokine-producing cells were reported to be involved in the disease immunopathogenesis, and the cytokines were reported to be significantly involved in the occurrence and course of the disease. 5,6 The studies on etiopathogenesis reported results, establishing an association between the cytokine genes such as IL-l A and , IL-8, IL-12, IL-10, the gene polymorphisms, which are significantly involved in the gene polymorphisms, and BD.…”