TLR4 and type 2 diabetes mellitus: The final SNP rs4986791 in the TLR4 gene was associated with a combination of codominant heterozygous (CT vs. CC: OR—3.34 (95%CI: 1.87–5.99); p = 0.0003) and dominant models (CT + TT vs. CC: OR—3.52 (95%CI: 1.97–6.29); p = 0.0001), which dramatically increased the risk of T2DM by approximately 3.4 times.