PMID- 16251607 OWN - NLM STAT- MEDLINE DCOM- 20060203 LR - 20230216 IS - 0022-3166 (Print) IS - 0022-3166 (Linking) VI - 135 IP - 11 DP - 2005 Nov TI - The apolipoprotein E gene promoter (-219G/T) polymorphism determines insulin sensitivity in response to dietary fat in healthy young adults. PG - 2535-40 AB - Insulin sensitivity (IS) is determined by genetic and environmental factors, including diet. The apoE gene promoter -219G/T polymorphism is associated with coronary heart disease and increased postprandial triacylglycerol-rich lipoprotein concentration, circumstances related to insulin resistance. Thus, our aim was to determine whether this polymorphism modified the IS response to dietary fat in healthy young adults. Volunteers (n = 43) with the apoE3/E3 genotype (8 GG, 25 GT and 10 TT) completed 3 dietary periods, each lasting 4 wk. They first consumed a SFA-rich diet [38% fat (% of energy in the total diet), 20% SFA (% of energy in the total diet)], and then, in a randomized, crossover design, a carbohydrate (CHO)-rich diet (30% fat, 55% CHO) or a monounsaturated fatty acid (MUFA)-rich diet (38% fat, 22% MUFA). After each diet period, we investigated peripheral IS using the insulin suppression test. The steady-state plasma glucose (SSPG) concentration was lower (P < 0.05) in GG subjects than in GT and TT individuals, regardless of the diet consumed. Significant diet x genotype interactions were found for SSPG and plasma nonesterified FFA (NEFA) concentrations. Thus, the shift from the SFA-rich diet to the MUFA- or CHO-rich diets decreased (P < 0.05) the SSPG and NEFA concentrations in GG and GT, but not in TT subjects. In conclusion, carriers of the -219T allele are less insulin sensitive than GG individuals. Furthermore, only carriers of the -219G allele have improved IS when MUFA- or CHO-rich diets are consumed instead of a SFA-rich diet. FAU - Moreno, Juan Antonio AU - Moreno JA AD - Lipids and Atherosclerosis Research Unit, Hospital Universitario Reina Sofia, Cordoba, Spain. FAU - Perez-Jimenez, Francisco AU - Perez-Jimenez F FAU - Marin, Carmen AU - Marin C FAU - Perez-Martinez, Pablo AU - Perez-Martinez P FAU - Moreno, Rafael AU - Moreno R FAU - Gomez, Purificacion AU - Gomez P FAU - Jimenez-Gomez, Yolanda AU - Jimenez-Gomez Y FAU - Paniagua, Juan Antonio AU - Paniagua JA FAU - Lairon, Denis AU - Lairon D FAU - Lopez-Miranda, Jose AU - Lopez-Miranda J LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - J Nutr JT - The Journal of nutrition JID - 0404243 RN - 0 (Apolipoproteins E) RN - 0 (Cholesterol, LDL) RN - 0 (Dietary Carbohydrates) RN - 0 (Dietary Fats) RN - 0 (Fatty Acids) RN - 0 (Fatty Acids, Nonesterified) RN - 0 (Insulin) SB - IM MH - Adult MH - Apolipoproteins E/*genetics MH - Cholesterol, LDL/blood MH - Cross-Over Studies MH - Dietary Carbohydrates/administration & dosage MH - Dietary Fats/*administration & dosage MH - Energy Intake MH - Fasting MH - Fatty Acids/administration & dosage MH - Fatty Acids, Nonesterified/blood MH - Female MH - Genotype MH - Humans MH - Insulin/blood/*pharmacology MH - Male MH - Polymorphism, Genetic/*genetics MH - Promoter Regions, Genetic/*genetics EDAT- 2005/10/28 09:00 MHDA- 2006/02/04 09:00 CRDT- 2005/10/28 09:00 PHST- 2005/10/28 09:00 [pubmed] PHST- 2006/02/04 09:00 [medline] PHST- 2005/10/28 09:00 [entrez] AID - S0022-3166(22)10460-8 [pii] AID - 10.1093/jn/135.11.2535 [doi] PST - ppublish SO - J Nutr. 2005 Nov;135(11):2535-40. doi: 10.1093/jn/135.11.2535.