TNF and Behcet disease: Some other studies showed an opposite result to ours and that miRNA155 expression is increased in BD activity, as the study of Tili et al., 2007 which found that miR-155 is a potent pro-inflammatory microRNA and stated that Eμ-transgenic miR-155 mice have excessive uncontrolled inflammatory responses, giving excessive Tumor Necrosis Factor Alpha (TNFα) and septic shock hypersensitivity [25].