IL27 and Behcet disease: The mRNA expression of the unique subunit of IL-27 (IL-27p28) in patients with active BD (1.0 ± 0.7) was significantly lower than that in patients with inactive BD (2.4 ± 0.9) (P = 0.012) or healthy controls (2.2 ± 1.0; P = 0.032).