NAMPT and adrenal cortex carcinoma: Patients with adrenocortical carcinomas had significantly higher visfatin serum concentrations compared to patients with benign adrenocortical tumors—respectively, 7.81 ± 2.25 vs. 6.08 ± 1.32 ng/mL, p-value = 0.003 for the Welch’s t-test (Figure 1).