CARM1 and non-small cell lung carcinoma: Moreover, the levels of circHMGB2, miR-181a-5p and CARM1 in 120 NSCLC patients were measured, and the results showed that the expression of miR-181a-5p was negatively associated with that of circHMGB2 and CARM1 level, while the expression of circHMGB2 was positively correlated with the level of CARM1 (Fig. 3M-O).