GPT and diabetes mellitus: AAR-AST-ALT ratio, AST-Aspartate transaminase, ALT-Alanine transaminase, AUROC-area under the receiver operating characteristics, α2-MG-Alpha 2 macroglobulin, ALP-A1- Apolipoprotein A1, BMI-Body mass index, DM-Diabetes Mellitus, ELF-enhanced liver fibrosis test, GGT-Gamma glutamyl-transferase, HA-Hyaluronic acid, HOMA-Homeostatic model assessment, IRI-Immunoreactive insulin, IFG-impaired fasting glucose, NASH-non-alcoholic steatohepatitis, P3NP-Aminoterminal peptide of pro-collagen 3, T2DM-Type 2 Diabetes Mellitus, TIMP1-Tissue inhibitor matrix metalloproteinase 1