SRGN and Alzheimer disease: The AUC values for CSF AT1B1, SRGN, PRDX3 were 0.867 (95% confidence interval (CI): 0.684–1.000, p = 0.004), 0.833 (95% CI: 0.663–1.000, p = 0.008), and 0.783 (95% CI: 0.572–0.994, p = 0.025), respectively, indicating their potential value to distinguish AD from NCs.