RT Journal Article T1 Plasma lipidome patterns associated with cardiovascular risk in the PREDIMED trial: A case-cohort study. A1 Razquin, Cristina A1 Liang, Liming A1 Toledo, Estefanía A1 Clish, Clary B A1 Ruiz-Canela, Miguel A1 Zheng, Yan A1 Wang, Dong D A1 Corella, Dolores A1 Castaner, Olga A1 Ros, Emilio A1 Aros, Fernando A1 Gomez-Gracia, Enrique A1 Fiol, Miquel A1 Santos-Lozano, José Manuel A1 Guasch-Ferre, Marta A1 Serra-Majem, Lluis A1 Sala-Vila, Aleix A1 Buil-Cosiales, Pilar A1 Bullo, Monica A1 Fito, Montserrat A1 Portoles, Olga A1 Estruch, Ramon A1 Salas-Salvado, Jordi A1 Hu, Frank B A1 Martinez-Gonzalez, Miguel A K1 Cardiovascular disease K1 Case-cohort K1 Lipidomics K1 Mediterranean diet K1 Primary prevention AB The study of the plasma lipidome may help to better characterize molecular mechanisms underlying cardiovascular disease. The identification of new lipid biomarkers could provide future targets for prevention and innovative therapeutic approaches. In the frame of the PREDIMED trial, our aim was to examine the associations of baseline lipidome patterns or their changes with the risk of clinical CVD events. We included 983 participants in our case-cohort study. The end-point was the incidence of major CVD during 4.8years of median follow-up. We repeatedly measured 202 plasma known lipid metabolites at baseline and after 1-year of intervention. Principal component analysis was used to identify lipidome factors. Among the 15 identified factors, 7 were significantly associated with CVD. Considering common patterns among factors, lipids were grouped (summed) into scores. After adjustment for traditional CVD risk factors, scores of baseline polyunsaturated phosphatidylcholines (PC)/lysoPC/PC-plasmalogens and polyunsaturated cholesterol esters (CE) showed inverse associations with CVD (p=0.036 and 0.012, respectively); whereas scores of monoacylglycerols (MAGs)/diacylglycerols (DAGs) and short triacylglycerols (TAGs) showed a direct association with CVD (p=0.026 and 0.037, respectively). Baseline phosphatidylethanolamines (PEs) and their 1-y changes tended to be associated with higher CVD risk (p=0.066 and 0.081, respectively). We did not find a significant effect of the intervention with the Mediterranean Diet on these scores. Our study suggests that polyunsaturated PCs and CEs may confer protection against CVD. In contrast, MAGs, DAGs, TAGs and PEs appeared to be associated with higher CVD risk. YR 2018 FD 2018 LK http://hdl.handle.net/10668/11975 UL http://hdl.handle.net/10668/11975 LA en DS RISalud RD Apr 9, 2025