Abstract
Objective:
To evaluate associations between components of the Mediterranean diet and circulating markers of inflammation in a large cohort of asymptomatic subjects at high risk for cardiovascular disease.
Subjects/Methods:
A total of 339 men and 433 women aged between 55 and 80 years at high cardiovascular risk because of presence of diabetes or at least three classical cardiovascular risk factors, food consumption was determined by a semi-quantitative food frequency questionnaire. Serum concentrations of high-sensitivity C-reactive protein (CRP) were measured by immunonephelometry and those of interleukin-6 (IL-6), intracellular adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1) by enzyme-linked immunosorbent assay.
Results:
After adjusting for age, gender, body mass index, diabetes, smoking, use of statins, non-steroidal antiinflammatory drugs and aspirin, a higher consumption of fruits and cereals was associated with lower concentrations of IL-6 (P for trend 0.005;both). Subjects with the highest consumption of nuts and virgin olive oil showed the lowest concentrations of VCAM-1, ICAM-1, IL-6 and CRP; albeit only for ICAM-1 was this difference statistically significant in the case of nuts (for trend 0.003) and for VCAM-1 in the case of virgin olive oil (P for trend 0.02). Participants with higher adherence to the Mediterranean-type diet did not show significantly lower concentrations of inflammatory markers (P<0.1 for VCAM-1 and ICAM-1).
Conclusions:
The consumption of some typical Mediterranean foods (fruits, cereals, virgin olive oil and nuts) was associated with lower serum concentrations of inflammatory markers especially those related to endothelial function, in subjects with high cardiovascular risk living in a Mediterranean country.
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Acknowledgements
This study was funded, in part, by the Instituto de Salud Carlos III (Thematic Network G03/140 and RD06/0045, CIBER 06/03, and PI051839), Spain.
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Guarantor: J Salas-Salvadó. Contributors: JS-S, MAM-G and RE had primary responsibility for the data analysis and manuscript preparation. RE is the overall coordinator of the PREDIMED study. AGA and MAM-G were responsible for the statistical analysis. JS-S, RE, DC, MF, EG-G, EV, FA, CH, CL, JL and MAM-G were the principal investigators of the centres participating in the data collection. All the coauthors participated in the design and execution of the study and contributed to the critical revision of the manuscript for important intellectual content.
Appendix
Appendix
Investigators not listed as authors and institutions participating in the PREDIMED Study:
University Rovira i Virgili, Reus (Tarragona): M Bulló, J Basora, J Fernandez-Ballart, P Casas
University of Navarra: P Buil
Hospital Clinic–IDIBAPS: E Sacanella, M Serra
University of Valencia: JV Sorlí
University Institute for Health Sciences Investigation, Palma de Mallorca: G Frontera, F Rigo
University of Málaga: V Velasco-García
Primary Health Care Division, Barcelona: C Cabezas
Hospital Txangorritxu, Vitoria: J San Vicente, J Alcorta
Hospital Virgen del Rocío, Sevilla: A Nieto
Hospital Carlos III, Madrid: JM Mostaza
San Pablo Health Center, Sevilla: P Iglesias, JM Santos
Instituto de la Grasa, CSIC, Sevilla: V Ruíz-Gutiérrez
Municipal Institut for Medical Research (IMIM), Barcelona: M Fitó
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Salas-Salvadó, J., Garcia-Arellano, A., Estruch, R. et al. Components of the mediterranean-type food pattern and serum inflammatory markers among patients at high risk for cardiovascular disease. Eur J Clin Nutr 62, 651–659 (2008). https://doi.org/10.1038/sj.ejcn.1602762
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DOI: https://doi.org/10.1038/sj.ejcn.1602762
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