CCND3 and Behcet disease: In the BR pathway, compared with the control (BD comparison and combined comparison), the expression of four TCH4 (xyloglucan: xyloglucosyl transferase) genes was upregulated; in contrast, the expression of one BKI1 (BRI1 kinase inhibitor 1) and two CYCD3 (cyclin D3) genes was downregulated under B deficiency.