PRMT1 and colorectal adenocarcinoma: Circ-PRMT1 levels in colorectal adenocarcinoma samples ranged from 0.061 to 750.48 RQU, with a median of 2.38 RQU, whereas in non-cancerous tissues the levels fluctuated from 0.015 to 229.64 RQU, with a median of 0.23 RQU (Figure 1).