PMID- 23484910 OWN - NLM STAT- MEDLINE DCOM- 20140728 LR - 20151119 IS - 1590-3729 (Electronic) IS - 0939-4753 (Linking) VI - 23 IP - 12 DP - 2013 Dec TI - Mediterranean diet and non enzymatic antioxidant capacity in the PREDIMED study: evidence for a mechanism of antioxidant tuning. PG - 1167-74 LID - S0939-4753(13)00003-3 [pii] LID - 10.1016/j.numecd.2012.12.008 [doi] AB - BACKGROUND AND AIMS: The intake of antioxidant-rich foods may increase the blood levels of non enzymatic antioxidant capacity (NEAC). NEAC takes into account all antioxidants from food and synergistic effects between them. We examined the effect of a 1-year intervention with Mediterranean diet on plasma NEAC and assessed whether it was related to baseline NEAC levels. METHODS AND RESULTS: Five hundred sixty-four participants at high cardiovascular risk were randomly selected from the PREDIMED (Prevencion con DIeta MEDiterranea) Study, a large 3-arm randomized clinical trial. Blood NEAC levels were measured at baseline and after 1-year of dietary intervention with 1) a Mediterranean diet supplemented with virgin olive oil (MED + VOO); 2) a Mediterranean diet supplemented with nuts (MED + nuts), or 3) a control low-fat diet. Plasma NEAC was analyzed using FRAP (ferric reducing antioxidant potential) and TRAP (total radical-trapping antioxidant parameter) assays. Plasma FRAP levels increased after 1-year of intervention with MED + VOO [72.0 mumol/L (95% CI, 34.2-109.9)] and MED + nuts [48.9 mumol/L (24.3-73.5)], but not after the control low-fat diet [13.9 mumol/L (-11.9 to 39.8)]. Participants in the lowest quartile of plasma FRAP at baseline significantly increased their levels after any intervention, while those in the highest quartile decreased. Similar results occurred with TRAP levels. CONCLUSIONS: This study shows that a 1-year of MED diet intervention increases plasma TAC level in subjects at high risk for cardiovascular disease. Moreover, the effectiveness of dietary supplementation with antioxidants may be related to baseline levels of plasma NEAC. CI - (c) 2013 Elsevier B.V. All rights reserved. FAU - Zamora-Ros, R AU - Zamora-Ros R AD - Nutrition and Food Science Department, XaRTA INSA, Pharmacy School, University of Barcelona, Av/Joan XXIII s/n, 08028 Barcelona, Spain; Unit of Nutrition, Environment and Cancer, Cancer Epidemiology Research Programme, Catalan Institute of Oncology (ICO-IDIBELL), Barcelona, Spain. FAU - Serafini, M AU - Serafini M FAU - Estruch, R AU - Estruch R FAU - Lamuela-Raventos, R M AU - Lamuela-Raventos RM FAU - Martinez-Gonzalez, M A AU - Martinez-Gonzalez MA FAU - Salas-Salvado, J AU - Salas-Salvado J FAU - Fiol, M AU - Fiol M FAU - Lapetra, J AU - Lapetra J FAU - Aros, F AU - Aros F FAU - Covas, M I AU - Covas MI FAU - Andres-Lacueva, C AU - Andres-Lacueva C CN - PREDIMED Study Investigators LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20130226 PL - Netherlands TA - Nutr Metab Cardiovasc Dis JT - Nutrition, metabolism, and cardiovascular diseases : NMCD JID - 9111474 RN - 0 (Antioxidants) RN - 0 (Olive Oil) RN - 0 (Plant Oils) SB - IM MH - Aged MH - Aged, 80 and over MH - Antioxidants/*administration & dosage/metabolism MH - Cardiovascular Diseases/diet therapy/*prevention & control MH - Diet, Fat-Restricted MH - *Diet, Mediterranean MH - Female MH - Humans MH - Male MH - Middle Aged MH - Nuts MH - Olive Oil MH - Plant Oils/administration & dosage MH - Risk Factors OTO - NOTNLM OT - CVD OT - Dietary modulation OT - FRAP OT - MED OT - Mediterranean diet OT - NEAC OT - Non enzymatic antioxidant capacity OT - Oxidative stress OT - PREDIMED OT - Prevencion con Dieta Mediterranea OT - RONS OT - TRAP OT - Total antioxidant capacity OT - VOO OT - cardiovascular diseases OT - ferric reducing antioxidant potential OT - non enzymatic antioxidant capacity OT - reactive oxygen nitrogen species OT - total radical-trapping antioxidant parameter OT - virgin olive oil FIR - Llorach, Rafael IR - Llorach R FIR - Rabassa, Montserrat IR - Rabassa M FIR - Medina-Remon, Alex IR - Medina-Remon A FIR - Sacanella, Emilio IR - Sacanella E FIR - Masanes, Ferran IR - Masanes F FIR - Casas, Rosa IR - Casas R FIR - Vinas, Concha IR - Vinas C FIR - Extremera, Vicente IR - Extremera V FIR - Arroyo, Concepcion IR - Arroyo C FIR - Garcia Perez, Luisa IR - Garcia Perez L FIR - Buil-Cosiales, Pilar IR - Buil-Cosiales P FIR - Bullo, Monica IR - Bullo M FIR - Babio, Nancy IR - Babio N FIR - Basora, Josep IR - Basora J FIR - Fito, Montse IR - Fito M FIR - de la Torre, Rafael IR - de la Torre R FIR - Schroder, Helmut IR - Schroder H FIR - Santos, Jose Manuel IR - Santos JM FIR - Ortega-Calvo, Manuel IR - Ortega-Calvo M FIR - Garcia, Francisco Jose IR - Garcia FJ FIR - Roman, Pilar IR - Roman P EDAT- 2013/03/15 06:00 MHDA- 2014/07/30 06:00 CRDT- 2013/03/15 06:00 PHST- 2012/07/21 00:00 [received] PHST- 2012/11/23 00:00 [revised] PHST- 2012/12/27 00:00 [accepted] PHST- 2013/03/15 06:00 [entrez] PHST- 2013/03/15 06:00 [pubmed] PHST- 2014/07/30 06:00 [medline] AID - S0939-4753(13)00003-3 [pii] AID - 10.1016/j.numecd.2012.12.008 [doi] PST - ppublish SO - Nutr Metab Cardiovasc Dis. 2013 Dec;23(12):1167-74. doi: 10.1016/j.numecd.2012.12.008. Epub 2013 Feb 26.