RT Journal Article T1 Retinal Vascular Study Using OCTA in Subjects at High Genetic Risk of Developing Alzheimer’s Disease and Cardiovascular Risk Factors A1 López Cuenca, Inés A1 García Martín, Elena Salobrar A1 Sánchez-Puebla Fernández, Lidia A1 Espejel Checa, Eva A1 García del Arco, Lucía A1 Rojas Lozano, María Del Pilar A1 Elvira Hurtado, Lorena A1 Fernández Albarral, José A1 Ramírez Toraño, Federico A1 Barabash Bustelo, Ana A1 Salazar Corral, Juan José A1 Ramírez Sebastián, José Manuel A1 Hoz Montañana, María Rosa De A1 Ramírez Sebastián, Ana Isabel AB In 103 subjects with a high genetic risk of developing Alzheimer’s disease (AD), family history (FH) of AD and ApoE ɛ4 characterization (ApoE ɛ4) were analyzed for changes in the retinal vascular network by OCTA (optical coherence tomography angiography), and AngioTool and Erlangen-Angio-Tool (EA-Tool) as imaging analysis software. Retinal vascularization was analyzed by measuring hypercholesterolemia (HCL) and high blood pressure (HBP). Angio-Tool showed a statistically significant higher percentage of area occupied by vessels in the FH+ ApoE ɛ4- group vs. in the FH+ ApoE ɛ4+ group, and EA-Tool showed statistically significant higher vascular densities in the C3 ring in the FH+ ApoE ɛ4+ group when compared with: i)FH- ApoE ɛ4- in sectors H3, H4, H10 and H11; and ii) FH+ ApoE ɛ4- in sectors H4 and H12. In participants with HCL and HBP, statistically significant changes were found, in particular using EA-Tool, both in the macular area, mainly in the deep plexus, and in the peripapillary area. In conclusion, OCTA in subjects with genetic risk factors for the development of AD showed an apparent increase in vascular density in some sectors of the retina, which was one of the first vascular changes detectable. These changes constitute a promising biomarker for monitoring the progression of pathological neuronal degeneration. PB MDPI SN 2077-0383 YR 2022 FD 2022-06-06 LK https://hdl.handle.net/20.500.14352/71692 UL https://hdl.handle.net/20.500.14352/71692 LA eng NO López Cuenca, I., García Martín, E. S., Sánchez-Puebla Fernández, L. et al. «Retinal Vascular Study Using OCTA in Subjects at High Genetic Risk of Developing Alzheimer’s Disease and Cardiovascular Risk Factors». Journal of Clinical Medicine, vol. 11, n.o 11, junio de 2022, p. 3248. DOI.org (Crossref), https://doi.org/10.3390/jcm11113248. NO This article belongs to the Special Issue Predicting the Evolution of Neurological Diseases: The Role of Biomarkers in 2022 and Beyond NO Ministerio de Ciencia, Innovación y Universidades (España) NO Ministerio de Economía, Comercio y Empresa (España) NO Instituto de Salud Carlos III NO Universidad Complutense de Madrid NO Ministerio de Educación, Formación Profesional y Deportes (España) DS Docta Complutense RD 8 abr 2025