The secondary objective is to evaluate correlations between GPR120 levels and lipid (total cholesterol, HDL-C, LDL-C, triglycerides, oxidized LDL) and renal biomarkers (serum creatinine, cystatin C, microalbuminuria, and eGFR). We aimed to assess the potential of serum GPR-120 as a clinically useful biomarker to complement existing diagnostic tools for DN. This evidence concerns the gene CST3 and liver dysplastic nodule.