Dataset Information

Apolipoprotein E gene polymorphism modifies fasting total cholesterol concentrations in response to replacement of dietary saturated with monounsaturated fatty acids in adults at moderate cardiovascular disease risk.

ABSTRACT: Consumption of ?10% total energy from fat as saturated fatty acids (SFA) is recommended for cardiovascular disease risk reduction in the UK; however there is no clear guidance on the optimum replacement nutrient. Lipid-associated single-nucleotide polymorphisms (SNPs) have been shown to modify the lipid responses to dietary fat interventions. Hence, we performed a retrospective analysis in 120 participants from the Dietary Intervention and VAScular function (DIVAS) study to investigate whether lipoprotein lipase (LPL) and apolipoprotein E (APOE) SNPs modify the fasting lipid response to replacement of SFA with monounsaturated (MUFA) or n-6 polyunsaturated (PUFA) fatty acids.The DIVAS study was a randomized, single-blinded, parallel dietary intervention study performed in adults with a moderate cardiovascular risk who received one of three isoenergetic diets rich in SFA, MUFA or n-6 PUFA for 16 weeks.After the 16-week intervention, a significant diet-gene interaction was observed for changes in fasting total cholesterol (P?=?0.001). For the APOE SNP rs1064725, only TT homozygotes showed a significant reduction in total cholesterol after the MUFA diet (n?=?33; -0.71?±?1.88 mmol/l) compared to the SFA (n?=?38; 0.34?±?0.55 mmol/l) or n-6 PUFA diets (n?=?37; -0.08?±?0.73 mmol/l) (P?=?0.004). None of the interactions were statistically significant for the other SNPs.In summary, our findings have demonstrated a greater sensitivity of the APOE SNP rs1064725 to dietary fat composition, with a total cholesterol lowering effect observed following substitution of SFA with MUFA but not n-6 PUFA. Further large intervention studies incorporating prospective genotyping are required to confirm or refute our findings.The trial was registered at www.clinicaltrials.gov as NCT01478958.

SUBMITTER: Shatwan IM

PROVIDER: S-EPMC5701425 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature

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Apolipoprotein E gene polymorphism modifies fasting total cholesterol concentrations in response to replacement of dietary saturated with monounsaturated fatty acids in adults at moderate cardiovascular disease risk.

Shatwan Israa M IM Weech Michelle M Jackson Kim G KG Lovegrove Julie A JA Vimaleswaran Karani S KS

Lipids in health and disease 20171123 1

<h4>Background</h4>Consumption of ≤10% total energy from fat as saturated fatty acids (SFA) is recommended for cardiovascular disease risk reduction in the UK; however there is no clear guidance on the optimum replacement nutrient. Lipid-associated single-nucleotide polymorphisms (SNPs) have been shown to modify the lipid responses to dietary fat interventions. Hence, we performed a retrospective analysis in 120 participants from the Dietary Intervention and VAScular function (DIVAS) study to in ...[more]

PMID: 29169396

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Project description:BackgroundChronic consumption of dairy products with an SFA-reduced, MUFA-enriched content was shown to impact favorably on brachial artery flow-mediated dilatation (FMD). However, their acute effect on postprandial cardiometabolic risk biomarkers requires investigation.ObjectiveThe effects of sequential high-fat mixed meals rich in fatty acid (FA)-modified or conventional (control) dairy products on postprandial FMD (primary outcome) and systemic cardiometabolic biomarkers in adults with moderate cardiovascular risk (≥50% above the population mean) were compared.MethodsIn a randomized crossover trial, 52 participants [mean ± SEM age: 53 ± 2 y; BMI (kg/m2) 25.9 ± 0.5] consumed a high-dairy-fat breakfast (0 min; ∼50 g total fat: modified: 25 g SFAs, 20 g MUFAs; control: 32 g SFAs, 12 g MUFAs) and lunch (330 min; ∼30 g total fat; modified: 15 g SFAs, 12 g MUFAs; control: 19 g SFAs, 7 g MUFAs). Blood samples were obtained before and until 480 min after breakfast, with FMD assessed at 0, 180, 300, and 420 min. Data were analyzed by linear mixed models.ResultsPostprandial changes in cardiometabolic biomarkers were comparable between the different dairy meals, with the exception of a tendency for a 4% higher AUC for the %FMD response following the modified-dairy-fat meals (P = 0.075). Plasma total lipid FA analysis revealed that incremental AUC responses were 53% lower for total SFAs, 214% and 258% higher for total cis-MUFAs (predominantly cis-9 18:1), and trans-18:1, respectively, following the modified relative to the control dairy meals (all P < 0.0001).ConclusionsIn adults at moderate cardiovascular risk, acute consumption of sequential high-fat meals containing FA-modified dairy products had little impact on postprandial endothelial function or systemic cardiometabolic biomarkers, but a differential effect on the plasma total lipid FA profile, relative to conventional dairy fat meals.This trial was registered at clinicaltrials.gov as NCT02089035.

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Project description:BackgroundProspective cohort studies have found a relation between sugar-sweetened beverage consumption (SSB; sodas and fruit drinks) and dyslipidemia. There is limited evidence linking SSB consumption to emerging features of dyslipidemia, which can be characterized by variation in lipoprotein particle size, remnant-like particle (RLP), and apolipoprotein concentrations.ObjectiveTo examine the association between SSB consumption and plasma lipoprotein cholesterol, apolipoprotein, and lipoprotein particle size concentrations among US adults.MethodsWe examined participants from the Framingham Offspring Study (FOS) (1987-1995; n = 3047) and the Women's Health Study (1992; n = 26,218). Plasma LDL-C, apolipoprotein (apo) B, HDL-C, apoA1, triglyceride (TG), non-HDL-C, total: HDL-cholesterol ratio, and apoB: apoA1 concentrations were quantified in both cohorts, and apoE, apoC3, RLP-TG, and RLP-cholesterol concentrations in FOS only. Lipoprotein particle sizes were calculated from NMR signals for lipoprotein particle subclass concentrations (triglyceride-rich lipoprotein particles [TRL-P; very large, large, medium, small, and very small], LDL-particles [LDL-P; large, medium, and small], HDL-particles [HDL-P; large, medium, and small]). SSB consumption was estimated from food frequency questionnaire data. We examined the associations between SSB consumption and all lipoprotein and apoprotein measures in linear regression models, adjusting for confounding factors, such as lifestyle, diet, and traditional lipoprotein risk factors.ResultsSSB consumption was positively associated with LDL-C, apoB, TG, RLP-TG, RLP-C, non-HDL-C concentrations and total: HDL cholesterol and apoB: apoA1 ratio, and negatively associated with HDL-C and apoA1 concentrations (P-trend ranges from < 0.0001 to 0.003). After adjustment for traditional lipoprotein risk factors, SSB consumers had smaller LDL-P and HDL-P sizes, lower concentrations of large LDL-P and medium HDL-P, and higher concentrations of small LDL-P, small HDL-P, and large TRL-P (P-trend ranges from < 0.0001 to 0.0009).ConclusionsHigher SSB consumption was associated with multiple emerging features of dyslipidemia that have been linked to higher cardiometabolic risk in US adults.

Dataset Information

Apolipoprotein E gene polymorphism modifies fasting total cholesterol concentrations in response to replacement of dietary saturated with monounsaturated fatty acids in adults at moderate cardiovascular disease risk.

Publications

Apolipoprotein E gene polymorphism modifies fasting total cholesterol concentrations in response to replacement of dietary saturated with monounsaturated fatty acids in adults at moderate cardiovascular disease risk.

Similar Datasets

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