LCN2 and type 2 diabetes mellitus: Moreover, as can be seen from Table 3, the analysis of the dependence between particular regulatory molecules showed that there was a positive, average correlation between serum concentration of NGAL and CTRP3 in the obese control group, whereas in T2DM patients qualified for insulin treatment, a positive correlation between the concentration of omentin-1 and CTRP3 was observed.