MIF and diabetes mellitus: 1) MIF expression was significantly higher in DM-PC tissues than CP or PC patients without DM; 2) mean serum MIF levels (ng/ml) were higher in new-onset DM-PC (32), vs. PC without DM (17, p < 0.001), long-term DM-PC (20, p < 0.001), new-onset T2DM patients (21, p < 0.01), and healthy controls (14, p < 0.001); 3) diagnostic utility of serum MIF in distinguishing new-onset DM-PC from new-onset T2DM: AUC, 0.85; Se, 86%; Sp, 60%