GSTM1 and diabetes mellitus: In the LVR group, all correlations to DM, Hb level, number of erythrocytes, and hematocrit are lost; smoking is correlated to miR-21 (r = 0.587; p = 0.034); the time elapsed since the onset of symptoms is negatively correlated to miR-101 (r = −0.689; p = 0.032) and miR-21 (r = −0.659; p = 0.043).