Moreover, in T2DM patients, BMI was significantly and positively correlated with chemerin (r = 0.407, P < 0.001) and leptin (r = 0.490, P < 0.001; males: r = 0.450, P = 0.005; females: r = 0.277, P = 0.102) and inversely correlated with adiponectin (r = −0.419, P < 0.001). This evidence concerns the gene RARRES2 and type 2 diabetes mellitus.