RT Journal Article T1 Synergistic Effect of 3',4'-Dihidroxifenilglicol and Hydroxytyrosol on Oxidative and Nitrosative Stress and Some Cardiovascular Biomarkers in an Experimental Model of Type 1 Diabetes Mellitus A1 De La Cruz Cortés, José Pedro A1 Vallejo-Carmona, Leticia A1 Arrebola, María Monsalud A1 Martín-Aurioles, Esther A1 Rodriguez-Pérez, María Dolores A1 Ortega-Hombrados, Laura A1 Verdugo, Cristina A1 Fernández-Prior, María África A1 Bermúdez-Oria, Alejandra A1 González-Correa, José Antonio K1 Hydroxytyrosol K1 Extra-virgin olive oil polyphenols K1 3',4' -dihidroxifenilglicol K1 Oxidative stress K1 Cardiovascular K1 Polifenoles K1 Aceite de oliva K1 Estrés oxidativo K1 Estrés nitrosativo K1 Biomarcadores K1 Diabetes mellitus tipo 1 AB The objective of this study was to assess a possible synergistic effect of two extra-virgin olive oil polyphenols, 3,4,-dyhydroxyphenylglycol (DHPG) and hydroxytyrosol (HT), in an experimental model of type 1 diabetes. Seven groups of animals were studied: (1) Nondiabetic rats (NDR), (2) 2-month-old diabetic rats (DR), (3) DR treated with 5 mg/kg/day p.o. HT, (4) DR treated with 0.5 mg/kg/day p.o. DHPG, (5) DR treated with 1 mg/kg/day p.o. DHPG, (6) DR treated with HT + DHPG (0.5), (7) DR treated with HT + DHPG (1). Oxidative stress variables (lipid peroxidation, glutathione, total antioxidant activity, 8-isoprostanes, 8-hydroxy-2-deoxyguanosine, and oxidized LDL), nitrosative stress (3-nitrotyrosine), and some cardiovascular biomarkers (platelet aggregation, thromboxane B2, prostacyclin, myeloperoxidase, and vascular cell adhesion protein 1 (VCAM-1)) were analyzed. The diabetic animals showed an imbalance in all of the analyzed variables. HT exerted an antioxidant and downregulatory effect on prothrombotic biomarkers while reducing the fall of prostacyclin. DHPG presented a similar, but quantitatively lower, profile. HT plus DHPG showed a synergistic effect in the reduction of oxidative and nitrosative stress, platelet aggregation, production of prostacyclin, myeloperoxidase, and VCAM-1. This synergism could be important for the development of functional oils enriched in these two polyphenols in the proportion used in this study. PB MDPI YR 2021 FD 2021-12-13 LK http://hdl.handle.net/10668/4325 UL http://hdl.handle.net/10668/4325 LA en NO De La Cruz Cortés JP, Vallejo-Carmona L, Arrebola MM, Martín-Aurioles E, Rodriguez-Pérez MD, Ortega-Hombrados L, et al. Synergistic Effect of 3',4'-Dihidroxifenilglicol and Hydroxytyrosol on Oxidative and Nitrosative Stress and Some Cardiovascular Biomarkers in an Experimental Model of Type 1 Diabetes Mellitus. Antioxidants. 2021 Dec 13;10(12):1983 DS RISalud RD Apr 10, 2025