Results revealed that mRNA expression levels of Egr2 were higher in BD mice with eye symptoms than in mice with eye symptoms only (13.50 ± 0.14 vs. 0.6 ± 0.70, p = 0.001) and in normal mice (13.50 ± 0.14 vs. 1.0 ± 0.73, p = 0.001) (Figure 3A). The gene discussed is EGR2; the disease is Behcet disease.