Ruíz Gayo, MarianoSomoza Hernández, BeatrizFernández Felipe, JesúsGonzález Blázquez, RaquelGil Ortega, MartaOlmo Izquierdo, Nuria delGrupo de Metabolismo y Función Vascular (MET-VASC)Universidad San Pablo-CEU. Facultad de Farmacia2023-09-202023-09-202021-03-19Vega-Martín, E.; Gil-Ortega, M.; González-Blázquez, R.; Benedito, S.; Fernández-Felipe, J.; Ruiz-Gayo, M.; del Olmo, N.; Chowen, J.A.; Frago, L.M.; Somoza, B.; et al. Differential Deleterious Impact of Highly Saturated Versus Monounsaturated Fat Intake on Vascular Function, Structure, and Mechanics in Mice. Nutrients 2021, 13, 1003. https://doi.org/10.3390/ nu130310032072-6643http://hdl.handle.net/10637/14608En colaboración con: Elena Vega-Martín, Sara Benedito, Julie A. Chowen, Laura M. Frago and María S. Fernández-AlfonsoVegetable oils such as palm oil (enriched in saturated fatty acids, SFA) and high-oleic-acid sunflower oil (HOSO, containing mainly monounsaturated fatty acids, MUFA) have emerged as the most common replacements for trans-fats in the food industry. The aim of this study is to analyze the impact of SFA and MUFA-enriched high-fat (HF) diets on endothelial function, vascular remodeling, and arterial stiffness compared to commercial HF diets. Five-week-old male C57BL6J mice were fed a standard (SD), a HF diet enriched with SFA (saturated oil-enriched Food, SOLF), a HF diet enriched with MUFA (unsaturated oil-enriched Food, UOLF), or a commercial HF diet for 8 weeks. Vascular function was analyzed in the thoracic aorta. Structural and mechanical parameters were assessed in mesenteric arteries by pressure myography. SOLF, UOLF, and HF diet reduced contractile responses to phenylephrine and induced endothelial dysfunction in the thoracic aorta. A significant increase in the -index, and thus in arterial stiffness, was also detected in mesenteric arteries from the three HF groups, due to enhanced deposition of collagen in the vascular wall. SOLF also induced hypotrophic inward remodeling. In conclusion, these data demonstrate a deleterious effect of HF feeding on obesity-related vascular alterations that is exacerbated by SFA.application/pdfenopen accessEndothelial dysfunctionVascular remodelingArtículo10.3390/nu13031003https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es