RT Journal Article T1 Differences in the prospective association between individual plasma phospholipid saturated fatty acids and incident type 2 diabetes: the EPIC-InterAct case-cohort study. A1 Forouhi, Nita G A1 Koulman, Albert A1 Sharp, Stephen J A1 Imamura, Fumiaki A1 Kröger, Janine A1 Schulze, Matthias B A1 Crowe, Francesca L A1 Huerta, José María A1 Guevara, Marcela A1 Beulens, Joline W J A1 van Woudenbergh, Geertruida J A1 Wang, Laura A1 Summerhill, Keith A1 Griffin, Julian L A1 Feskens, Edith J M A1 Amiano, Pilar A1 Boeing, Heiner A1 Clavel-Chapelon, Françoise A1 Dartois, Laureen A1 Fagherazzi, Guy A1 Franks, Paul W A1 Gonzalez, Carlos A1 Jakobsen, Marianne Uhre A1 Kaaks, Rudolf A1 Key, Timothy J A1 Khaw, Kay-Tee A1 Kühn, Tilman A1 Mattiello, Amalia A1 Nilsson, Peter M A1 Overvad, Kim A1 Pala, Valeria A1 Palli, Domenico A1 Quirós, J Ramón A1 Rolandsson, Olov A1 Roswall, Nina A1 Sacerdote, Carlotta A1 Sanchez-Perez, Maria-Jose A1 Slimani, Nadia A1 Spijkerman, Annemieke M W A1 Tjonneland, Anne A1 Tormo, Maria-José A1 Tumino, Rosario A1 van der A, Daphne L A1 van der Schouw, Yvonne T A1 Langenberg, Claudia A1 Riboli, Elio A1 Wareham, Nicholas J K1 Estudios de casos y controles K1 Diabetes Mellitus tipo 2 K1 Ácidos grasos K1 Mediana edad K1 Fosfolípidos K1 Estudios prospectivos AB BACKGROUNDConflicting evidence exists regarding the association between saturated fatty acids (SFAs) and type 2 diabetes. In this longitudinal case-cohort study, we aimed to investigate the prospective associations between objectively measured individual plasma phospholipid SFAs and incident type 2 diabetes in EPIC-InterAct participants.METHODSThe EPIC-InterAct case-cohort study includes 12,403 people with incident type 2 diabetes and a representative subcohort of 16,154 individuals who were selected from a cohort of 340.234 European participants with 3·99 million person-years of follow-up (the EPIC study). Incident type 2 diabetes was ascertained until Dec 31, 2007, by a review of several sources of evidence. Gas chromatography was used to measure the distribution of fatty acids in plasma phospholipids (mol%); samples from people with type 2 diabetes and subcohort participants were processed in a random order by centre, and laboratory staff were masked to participant characteristics. We estimated country-specific hazard ratios (HRs) for associations per SD of each SFA with incident type 2 diabetes using Prentice-weighted Cox regression, which is weighted for case-cohort sampling, and pooled our findings using random-effects meta-analysis.FINDINGSSFAs accounted for 46% of total plasma phospholipid fatty acids. In adjusted analyses, different individual SFAs were associated with incident type 2 diabetes in opposing directions. Even-chain SFAs that were measured (14:0 [myristic acid], 16:0 [palmitic acid], and 18:0 [stearic acid]) were positively associated with incident type 2 diabetes (HR [95% CI] per SD difference: myristic acid 1·15 [95% CI 1·09-1·22], palmitic acid 1·26 [1·15-1·37], and stearic acid 1·06 [1·00-1·13]). By contrast, measured odd-chain SFAs (15:0 [pentadecanoic acid] and 17:0 [heptadecanoic acid]) were inversely associated with incident type 2 diabetes (HR [95% CI] per 1 SD difference: 0·79 [0·73-0·85] for pentadecanoic acid and 0·67 [0·63-0·71] for heptadecanoic acid), as were measured longer-chain SFAs (20:0 [arachidic acid], 22:0 [behenic acid], 23:0 [tricosanoic acid], and 24:0 [lignoceric acid]), with HRs ranging from 0·72 to 0·81 (95% CIs ranging between 0·61 and 0·92). Our findings were robust to a range of sensitivity analyses.INTERPRETATIONDifferent individual plasma phospholipid SFAs were associated with incident type 2 diabetes in opposite directions, which suggests that SFAs are not homogeneous in their effects. Our findings emphasise the importance of the recognition of subtypes of these fatty acids. An improved understanding of differences in sources of individual SFAs from dietary intake versus endogenous metabolism is needed.FUNDINGEU FP6 programme, Medical Research Council Epidemiology Unit, Medical Research Council Human Nutrition Research, and Cambridge Lipidomics Biomarker Research Initiative. PB Elsevier SN 2213-8587 YR 2014 FD 2014-08-06 LK http://hdl.handle.net/10668/2293 UL http://hdl.handle.net/10668/2293 LA en NO Forouhi NG, Koulman A, Sharp SJ, Imamura F, Kröger J, Schulze MB, et al. Differences in the prospective association between individual plasma phospholipid saturated fatty acids and incident type 2 diabetes: the EPIC-InterAct case-cohort study. Lancet Diabetes Endocrinol. 2014; 2(10): 810-8 NO Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't; DS RISalud RD Apr 18, 2025