VSNL1 and Alzheimer disease: In addition, Visinin-like 1 (VSNL1), highlighted in the analysis in Gomez Ravetti et al. [5] as one of the best markers of AD progression and recently proposed as one of the four best CSF biomarkers of early AD [97], showed expression changes in neurons isolated from EC, MTG and PC (Figure 5) and has been shown in an additional dataset to have altered expression in various brain regions in AD [98].