VEGFA and Alzheimer disease: Increased levels of vascular endothelial growth factor A (VEGFa), nerve growth factor inducible (VGF), fibroblast growth factor 2 (FGF2) and platelet-derived growth factor (PDGF) and decreased levels of pigment epithelium-derived factor (PEDF), have been found in resilient donors compared to AD patients [67, 87, 101].