RBP4 and familial hypercholesterolemia: Additionally, RBP4 levels of the patients with hypertriglyceridemia or hypercholesterolemia were significantly higher than patients with normal TG or TCH (59.36 ± 16.82 mg/L vs. 46.92 ± 14.76 mg/L, P = 0.029, and 60.66 ± 19.74 mg/L vs. 47.36 ± 13.88 mg/L, P = 0.028).