Author, as appears in the article.: Hernáez Á., Castañer O., Elosua R., Pintó X., Estruch R., Salas-Salvadó J., Corella D., Arós F., Serra-Majem L., Fiol M., Ortega-Calvo M., Ros E., Martínez-González M.Á., De La Torre R., López-Sabater M.C., Fitó M.

Department: Bioquímica i Biotecnologia

URV's Author/s: Salas Salvadó, Jorge

Keywords: Randomized controlled trial [publication type] Lipoproteins, hdl Lipoproteins Lipids Lipid analysis Dietas. Diet Antioxidants Antioxidant lipoproteins, hdl lipids diet antioxidant

Abstract: The biological functions of high-density lipoproteins (HDLs) contribute to explaining the cardioprotective role of the lipoprotein beyond quantitative HDL cholesterol levels. A few small-scale interventions with a single antioxidant have improved some HDL functions. However, to date, no long-term, large-scale, randomized controlled trial has been conducted to assess the effects of an antioxidant-rich dietary pattern (such as a traditional Mediterranean diet [TMD]) on HDL function in humans.This study was performed in a random subsample of volunteers from the PREDIMED Study (Prevención con Dieta Mediterránea; n=296) after a 1-year intervention. We compared the effects of 2 TMDs, one enriched with virgin olive oil (TMD-VOO; n=100) and the other enriched with nuts (TMD-Nuts; n=100), with respect to a low-fat control diet (n=96). We assessed the effects of both TMDs on the role of HDL particles on reverse cholesterol transport (cholesterol efflux capacity, HDL ability to esterify cholesterol, and cholesteryl ester transfer protein activity), HDL antioxidant properties (paraoxonase-1 arylesterase activity and total HDL antioxidant capacity on low-density lipoproteins), and HDL vasodilatory capacity (HDL ability to induce the release of nitric oxide in endothelial cells). We also studied the effects of a TMD on several HDL quality-related characteristics (HDL particle oxidation, resistance against oxidative modification, main lipid and protein composition, and size distribution).Both TMDs increased cholesterol efflux capacity relative to baseline (P=0.018 and P=0.013 for TMD-VOO and TMD-Nuts, respectively). The TMD-VOO intervention decreased cholesteryl ester transfer protein activity (relative to baseline, P=0.028) and increased HDL ability to esterify cholesterol, paraoxonase-1 arylesterase activity, and HDL vasodilatory capacity (relative to control, P=0.039, P=0.012, and P=0.026, respectively). Adherence to a TMD induced these beneficial changes by improving HDL oxidative status and composition. The 3 diets increased the percentage of large HDL particles (relative to baseline, P<0.001).The TMD, especially when enriched with virgin olive oil, improved HDL atheroprotective functions in humans.URL: http://www.controlled-trials.com. Unique identifier: ISRCTN35739639.© 2017 American Heart Association, Inc.

Thematic Areas: Saúde coletiva Physiology (medical) Peripheral vascular disease Nutrição Medicina iii Medicina ii Medicina i Interdisciplinar Hematology General medicine Farmacia Ensino Engenharias iv Engenharias ii Enfermagem Educação física Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciência da computação Cardiology and cardiovascular medicine Cardiac & cardiovascular systems Biotecnología

licence for use: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 00097322

Author's mail: jordi.salas@urv.cat

Author identifier: 0000-0003-2700-7459

Record's date: 2023-02-18

Papper version: info:eu-repo/semantics/acceptedVersion

Link to the original source: https://www.ahajournals.org/doi/10.1161/CIRCULATIONAHA.116.023712

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Circulation. 135 (7): 633-643

APA: Hernáez Á., Castañer O., Elosua R., Pintó X., Estruch R., Salas-Salvadó J., Corella D., Arós F., Serra-Majem L., Fiol M., Ortega-Calvo M., Ros E., Mar (2017). Mediterranean Diet Improves High-Density Lipoprotein Function in High-Cardiovascular-Risk Individuals. Circulation, 135(7), 633-643. DOI: 10.1161/CIRCULATIONAHA.116.023712

Article's DOI: 10.1161/CIRCULATIONAHA.116.023712

Entity: Universitat Rovira i Virgili

Journal publication year: 2017

Publication Type: Journal Publications