JAM2 and ocular sarcoidosis: On the other hand, the JAMB protein concentrations were 52.2 ± 51.8, 3.3 ± 5.0, 1.6 ± 3.4 and 25.6 ± 31.1 pg/mL in ocular sarcoidosis (n = 20), VRL (n = 10), controls (n = 10), and Behçet’s disease (n = 6), respectively, showing significant upregulation in ocular sarcoidosis compared to VRL and controls (Figure 5B).