FGF19 and type 2 diabetes mellitus: Moreover, both the T2D-R (N = 22, mean = 119.83 pg/mL) and T2D-NoR (N = 24, mean = 125.75 pg/mL) groups of patients had signifciantly lower FGF19 serum levels than No-T2D patients (N = 29, mean = 201.90 pg/mL) (Kruskal-Wallis Chi Square Test: 8.54, P-value = 0.0139).