YOD1 and pancreatic adenocarcinoma: And among the above 12 miRNAs, we found that hsa-miR-1468; hsa-miR-139; hsa-miR-140; hsa-miR-218; hsa-miR-9; hsa-miR-342; hsa-miR-375; hsa-miR-500a were negatively associated with poor overall survival of PAAD (Additional file 1: Fig. S5 and Table 3). Therefore, these miRNAs may affect the prognosis of PAAD by regulating the expression of YOD1.