After Bonferroni correction, significantly higher triglyceride, glucose, HbA1c, insulin, hsCRP, gamma-glutamyl transpeptidase (γ-GTP), and alanine transaminase (ALT) levels were observed in the T2D group compared to the controls, whereas HDL-C levels were lower in the T2D group than the controls. This evidence concerns the gene GGTLC1 and type 2 diabetes mellitus.