TNFSF13 and type 2 diabetes mellitus: The levels of receptors sTNF-R1, sTNF-R2, sTNFRSF8, and ligands TNFSF12, TNFSF13, TNFSF13B in obese patients without T2DM were higher in comparison with the group of patients with T2DM and the control group (p < 0.05) (Table 2).