Figure 1. Expression analysis of miR-106a and miR-21 in the serum of patients with CCA, BBDD and healthy controls.

(A) Serum miR-106a levels of CCA patients were significantly downregulated compared with those of BBDD patients and healthy controls; (B) MiR-21 levels in serum from patients with CCA were significantly elevated compared with healthy controls; however, the difference did not demonstrate significance compared with BBDD patients.