2.1.2. Healthy volunteers group

The control group consisted of 50 healthy volunteers who were age and sex-matched and had no family history of BD or other autoimmune disorders to compare them with the patient group who had the same criteria except for BD to exclude the affection of normal physiological conditions on the expression levels of the studied lncRNAs. Before being enrolled, all participants were asked to fill out an informed consent form. Those who had an autoimmune disease, cancer, a chronic infectious disease, or a new infection within a month of enrollment were exempted.