CX3CL1 and Alzheimer disease: Similar AUC values in discrimination between AD and the control group were demonstrated for CX3CL1 (AUC = 0.738, 95% Cl 0.615–0.861, p < 0.001) and NPTXR (AUC = 0.734, 95% Cl 0.610–0.858, p < 0.001), and the weakest differentiation performance was shown for YKL-40 (AUC = 0.683, 95% Cl 0.547–0.819, p = 0.008).