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Title: Polymorphisms cyclooxygenase-2 -765G>C and interleukin-6 -174G>C are associated with serum inflammation markers in a high cardiovascular risk population and do not modify the response to a Mediterranean diet supplemented with virgin olive oil or nuts
Author: Corella Piquer, Dolores
González, José Ignacio
Bulló, Mònica
Carrasco, Paula
Portolés, Olga
Díez Espino, Javier
Covas Planells, María Isabel
Ruiz-Gutiérrez, Valentina
Gómez Gracia, Enrique
Arós, Fernando
Fiol Sala, Miguel
Conde Herrera, Manuel
Santos, José Manuel
Sáez Tormo, Guillermo
Lamuela Raventós, Rosa Ma.
Lahoz, Carlos
Vinyoles, Ernest
Ros Rahola, Emilio
Estruch Riba, Ramon
Keywords: Malalties cardiovasculars
Cuina mediterrània
Suplements nutritius
Olis vegetals
Oli d'oliva
Fruita seca
Polimorfisme genètic
Marcadors bioquímics
Cardiovascular diseases
Mediterranean cooking
Dietary supplements
Vegetable oils
Olive oil
Dried fruit
Genetic polymorphisms
Biochemical markers
Issue Date: 3-Dec-2008
Publisher: American Society for Nutrition
Abstract: Inflammation is involved in cardiovascular diseases. Some studies have found that the Mediterranean diet (MD) can reduce serum concentrations of inflammation markers. However, none of these studies have analyzed the influence of genetic variability in such a response. Our objective was to study the effect of the -765G.C polymorphism in the cyclooxygenase-2 (COX-2) gene and the -174G.C polymorphism in the interleukin-6 (IL-6) gene on serum concentrations of IL-6, C-reactive protein, intercellular adhesion molecule 1 (ICAM-1) and vascular cell adhesion molecule-1 as well as their influence on the response toa nutritional interventionwithMD.An intervention study ina high cardiovascular riskMediterranean population (314 men and 407 women) was undertaken. Participants were randomly assigned to consume a low-fat control diet or a MD supplementedwith virgin olive oil ornuts.Measureswereobtained at baseline and after a 3-mointervention period.At baseline, the COX-2 -765G.C polymorphismwas associated with lower serum IL-6 (5.85 6 4.82 in GG vs. 4.74 6 4.14 ng/L in C-allele carriers; P ¼ 0.002) and ICAM-1 (265.8 6 114.8 in GG vs. 243.0 6 107.1 mg/L in C-carriers; P ¼ 0.018) concentrations. These differences remained significant aftermultivariate adjustment. The IL-6 -174G.C polymorphism was associatedwith higher (CC vs. G-carriers) serumICAM-1concentrations in bothmenandwomenandwithhigherserumIL-6 concentrations inmen.Following the dietary intervention, no significant gene x diet interactions were found. In conclusion, although COX-2 -765G.C and IL-6 -174G.C polymorphismswere associatedwith inflammation, consuming aMD(either supplemented with virgin olive oil or nuts) reduced the concentration of inflammation markers regardless of these polymorphisms.
It is part of: Journal of Nutrition, 2008, vol. 139, num. 1, p. 128-134
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ISSN: 0022-3166
Appears in Collections:Articles publicats en revistes (Nutrició, Ciències de l'Alimentació i Gastronomia)

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