INS and Insulin resistance: Further analyses of direct HEGC values granted us calculated indices (Figure 8), such as the glucose infusion rate (GIR), Insulin Sensitivity Index (ISI), metabolic clearance rate of insulin (MCRI), quantitative insulin sensitivity check index (QUICKI), homeostasis model assessment of insulin resistance (HOMA-IR), and homeostasis model assessment of B-cell function (HOMA-B).