Single biomarkers were able to discriminate with high accuracy (AUC > 0.82) between AD and controls (Aß42/40 ratio and GFAP) and between FTD and controls (NfL), but achieved only moderate discriminative power (AUC.72 to 0.78) to distinguish between AD and FTD. This evidence concerns the gene GFAP and frontotemporal dementia.