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Markey O, Vasilopoulou D, Kliem KE, Fagan CC, Grandison AS, Sutton R, Humphries DJ, Todd S, Jackson KG, Givens DI, Lovegrove JA. Effect of fat-reformulated dairy food consumption on postprandial flow-mediated dilatation and cardiometabolic risk biomarkers compared with conventional dairy: a randomized controlled trial. Am J Clin Nutr 2022; 115:679-693. [PMID: 35020795 PMCID: PMC8895219 DOI: 10.1093/ajcn/nqab428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/20/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Longer-term consumption of SFA-reduced, MUFA-enriched dairy products has been reported to improve fasting flow-mediated dilatation (FMD). Yet, their impact on endothelial function in the postprandial state warrants investigation. OBJECTIVES The aim was to compare the impact of a fatty acid (FA) modified with a conventional (control) dairy diet on the postprandial %FMD (primary outcome) and systemic cardiometabolic responses to representative meals, and retrospectively explore whether treatment effects differ by apolipoprotein E (APOE) or endothelial NO synthase (eNOS) Glu298Asp gene polymorphisms. METHODS In a crossover-design randomized controlled study, 52 adults with moderate cardiovascular disease risk consumed dairy products [38% of total energy intake (%TE) from fat: FA-modified (target: 16%TE SFAs; 14%TE MUFAs) or control (19%TE SFAs; 11%TE MUFAs)] for 12 wk, separated by an 8-wk washout. Blood sampling and FMD measurements (0-480 min) were performed pre- and postintervention after sequential mixed meals that were representative of the assigned dairy diets (0 min, ∼50 g fat; 330 min, ∼30 g fat). RESULTS Relative to preintervention (∆), the FA-modified dairy diet and meals (treatment) attenuated the increase in the incremental AUC (iAUC), but not AUC, for the %FMD response observed with the conventional treatment (-135 ± 69% vs. +199 ± 82% × min; P = 0.005). The ∆ iAUC, but not AUC, for the apoB response decreased after the FA-modified treatment yet increased after the conventional treatment (-4 ± 3 vs. +3 ± 3 mg/mL × min; P = 0.004). The ∆ iAUC decreased for plasma total SFAs (P = 0.003) and trans 18:1 (P < 0.0001) and increased for cis-MUFAs (P < 0.0001) following the conventional relative to the FA-modified treatment. No treatment × APOE or eNOS genotype interactions were evident for any outcome. CONCLUSIONS This study provides novel insights into the longer-term effects of FA-modified dairy food consumption on postprandial cardiometabolic responses.
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Affiliation(s)
- Oonagh Markey
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Dafni Vasilopoulou
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Kirsty E Kliem
- Animal, Dairy, and Food Chain Sciences, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Colette C Fagan
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Alistair S Grandison
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Rachel Sutton
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - David J Humphries
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Susan Todd
- Department of Mathematics and Statistics, University of Reading, Reading, United Kingdom
| | - Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - David I Givens
- Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
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Miura Y, Kanamaru H, Yasuda R, Toma N, Suzuki H. Nonfasting Triglyceride as an Independent Predictor of Carotid Restenosis After Carotid Endarterectomy or Carotid Artery Stenting. World Neurosurg 2021; 156:e415-e425. [PMID: 34587521 DOI: 10.1016/j.wneu.2021.09.091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/19/2022]
Abstract
OBJECTIVE Nonfasting serum triglyceride (TG) level is attracting more and more attention as an atherosclerosis-promoting factor. However, no study has investigated the relationships between nonfasting TG levels and carotid restenosis after carotid endarterectomy (CEA) or carotid artery stenting (CAS). This study was conducted to investigate if nonfasting TG levels can be used to assess a risk for carotid restenosis after CEA or CAS. METHODS This was a single-center retrospective study. We reviewed 201 consecutive primary carotid artery revascularization procedures (39 CEAs and 162 CASs), which were performed from 2008 to 2018 for 179 patients (163 men and 16 women) with atherosclerotic carotid stenosis, and were followed up for at least 1 year. Clinical variables including nonfasting lipid profiles and findings of magnetic resonance plaque imaging were compared between groups with and without postprocedural carotid restenosis (≥50% stenosis on ultrasonography). RESULTS During a mean follow-up period of 1413 days, 24 of 201 carotid stenosis procedures (11.9%) suffered restenosis after successful revascularization procedures. Multivariate analyses demonstrated that nonfasting TG level was the only independent risk factor of postprocedural restenosis. The receiver operating characteristic curve analyses revealed that a cutoff value of nonfasting TG to discriminate postprocedural carotid restenosis was 127.5 mg/dL, which was much lower than the upper limit of normal. CONCLUSIONS This study showed that nonfasting TG level may be a useful marker to predict carotid restenosis after CEA or CAS, and could be a new therapeutic target to prevent carotid restenosis after revascularization procedures.
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Affiliation(s)
- Yoichi Miura
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hideki Kanamaru
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Ryuta Yasuda
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Naoki Toma
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hidenori Suzuki
- Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu, Mie, Japan.
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Markey O, Vasilopoulou D, Kliem KE, Fagan CC, Grandison AS, Sutton R, Humphries DJ, Todd S, Jackson KG, Givens DI, Lovegrove JA. Postprandial Fatty Acid Profile, but Not Cardiometabolic Risk Markers, Is Modulated by Dairy Fat Manipulation in Adults with Moderate Cardiovascular Disease Risk: The Randomized Controlled REplacement of SaturatEd fat in dairy on Total cholesterol (RESET) Study. J Nutr 2021; 151:1755-1768. [PMID: 33758921 PMCID: PMC8327197 DOI: 10.1093/jn/nxab050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/21/2021] [Accepted: 02/10/2021] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Chronic 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. OBJECTIVE The 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. METHODS In 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. RESULTS Postprandial 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). CONCLUSIONS In 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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Affiliation(s)
- Oonagh Markey
- Present address for OM: School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Dafni Vasilopoulou
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Kirsty E Kliem
- Animal, Dairy, and Food Chain Sciences, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Colette C Fagan
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Alistair S Grandison
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - Rachel Sutton
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom
| | - David J Humphries
- Animal, Dairy, and Food Chain Sciences, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - Susan Todd
- Department of Mathematics and Statistics, University of Reading, Reading, United Kingdom
| | - Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, United Kingdom,Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
| | - David I Givens
- Institute for Food, Nutrition, and Health, University of Reading, Reading, United Kingdom
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Abstract
Purpose “Quantile-dependent expressivity” describes an effect of the genotype that depends upon the level of the phenotype (e.g., whether a subject’s triglycerides are high or low relative to its population distribution). Prior analyses suggest that the effect of a genetic risk score (GRS) on fasting plasma triglyceride levels increases with the percentile of the triglyceride distribution. Postprandial lipemia is well suited for testing quantile-dependent expressivity because it exposes each individual’s genotype to substantial increases in their plasma triglyceride concentrations. Ninety-seven published papers were identified that plotted mean triglyceride response vs. time and genotype, which were converted into quantitative data. Separately, for each published graph, standard least-squares regression analysis was used to compare the genotype differences at time t (dependent variable) to average triglyceride concentrations at time t (independent variable) to assess whether the genetic effect size increased in association with higher triglyceride concentrations and whether the phenomenon could explain purported genetic interactions with sex, diet, disease, BMI, and drugs. Results Consistent with the phenomenon, genetic effect sizes increased (P≤0.05) with increasing triglyceride concentrations for polymorphisms associated with ABCA1, ANGPTL4, APOA1, APOA2, APOA4, APOA5, APOB, APOC3, APOE, CETP, FABP2, FATP6, GALNT2, GCKR, HL, IL1b, LEPR, LOX-1, LPL, MC4R, MTTP, NPY, SORT1, SULF2, TNFA, TCF7L2, and TM6SF2. The effect size for these polymorphisms showed a progressively increasing dose-response, with intermediate effect sizes at intermediate triglyceride concentrations. Quantile-dependent expressivity provided an alternative interpretation to their interactions with sex, drugs, disease, diet, and age, which have been traditionally ascribed to gene-environment interactions and genetic predictors of drug efficacy (i.e., personalized medicine). Conclusion Quantile-dependent expressivity applies to the majority of genetic variants affecting postprandial triglycerides, which may arise because the impaired functionalities of these variants increase at higher triglyceride concentrations. Purported gene-drug interactions may be the manifestations of quantile-dependent expressivity, rather than genetic predictors of drug efficacy.
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Gavra P, Kolovou V, Papazafiropoulou AK, Melidonis A, Iraklianou S, Mavrogeni S, Kolovou G. The influence of gene polymorphisms on postprandial triglyceride response after oral fat tolerance test meal in patients with diabetes mellitus. Int J Clin Pract 2019; 73:e13432. [PMID: 31585025 DOI: 10.1111/ijcp.13432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 09/28/2019] [Indexed: 11/28/2022] Open
Abstract
AIMS We evaluated the influence of CETP (rs5882 and rs708272), APOE (rs7412, rs429358) and LPL (rs328) gene polymorphisms on triglyceride (TG) response to oral fat tolerance test (OFTT) meal in patients with well-controlled type 2 diabetes mellitus (T2DM). METHODS Fifty-one men underwent OFTT and according to postprandial TG response patients were divided into two subgroups (positive [TG ≥ 220 mg/dL, 31 patients] and negative [TG < 220 mg/dL, 20 patients]). All patients were genotyped, and study variants were detected using polymerase chain reaction (PCR) and restricted fragment length polymorphism (RFLP) analysis. RESULTS Patients with genotype SS of LPL gene compared with genotype SX had more frequently positive response to OFTT (P = .04) and lower high-density lipoprotein cholesterol (HDL-C) concentration (P = .03). Patients with positive response to OFTT and genotype SS of LPL gene compared with genotype SX had lower AUC (area under the curve)-TG, 1744 (368) vs 1887 (807) mg/dL/h, respectively, P = .04. CETP and APOE gene polymorphisms had no influence on postprandial TG response to OFTT. CONCLUSIONS In patients with well-controlled T2DM, LPL but not CETP and APOE gene polymorphisms influenced TG postprandial response. Particularly, S447 allele carriers of LPL gene presented more frequently positive postprandial TG response to OFTT compared with 447X allele carriers. No differences were found between allele carriers of patients with negative response to OFTT in any other studied gene polymorphism.
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Affiliation(s)
| | - Vana Kolovou
- Molecular Immunology Laboratory, Onassis Cardiac Surgery Center, Athens, Greece
- Cardiology Department, Onassis Cardiac Surgery Center, Athens, Greece
| | | | | | | | - Sophie Mavrogeni
- Cardiology Department, Onassis Cardiac Surgery Center, Athens, Greece
| | - Genovefa Kolovou
- Cardiology Department, Onassis Cardiac Surgery Center, Athens, Greece
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Fekete ÁA, Giromini C, Chatzidiakou Y, Givens DI, Lovegrove JA. Whey protein lowers systolic blood pressure and Ca-caseinate reduces serum TAG after a high-fat meal in mildly hypertensive adults. Sci Rep 2018; 8:5026. [PMID: 29568003 PMCID: PMC5864936 DOI: 10.1038/s41598-018-23333-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 03/09/2018] [Indexed: 11/16/2022] Open
Abstract
Epidemiological studies show an inverse association between dairy consumption and blood pressure (BP) but there are few data on the postprandial effects of milk proteins. This study examined their effects, compared to maltodextrin, on postprandial BP and other CVD risk markers in volunteers with mild and pre-hypertension over an 8 h period. In this double-blinded, randomised, cross-over, controlled study 27 adults ingested a high-fat, isoenergetic breakfast and lunch with 28 g whey protein, 28 g Ca-caseinate or 27 g maltodextrin. Whey protein reduced systolic BP compared with Ca-caseinate (−15.2 ± 13.6 mmHg) and maltodextrin (−23.4 ± 10.5 mmHg) up to 5 h post-ingestion. There was an improvement in arterial stiffness after whey protein compared with maltodextrin (incremental Area Under the Curve- iAUC0–8h: +14.4 ± 6.2%). Despite similar glucose levels after both whey protein and Ca-caseinate, whey protein induced a higher insulin response than Ca-caseinate (iAUC0–8h: +219.5 ± 54.6 pmol/L). Ca-caseinate induced less suppression of non-esterified fatty acids than whey protein (iAUC0–5h: −58.9 ± 135.5 μmol/L) and maltodextrin (iAUC0–5h: −106.9 ± 89.4 μmol/L) and induced a smaller postprandial triacylglycerol response than whey protein (iAUC0–8h: −1.68 ± 0.6 mmol/L). Milk proteins co-ingestion with high-fat meals may have the potential to maintain or improve CVD risk factors.
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Affiliation(s)
- Ágnes A Fekete
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom.,Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom
| | - Carlotta Giromini
- Department of Health, Animal Science and Food Safety, Università degli Studi di Milano, Via Trentacoste, 2, 20134, Milan, Italy
| | - Yianna Chatzidiakou
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom
| | - D Ian Givens
- Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences and Institute for Cardiovascular and Metabolic Research (ICMR), School of Chemistry, Food and Pharmacy, University of Reading, Reading, RG6 6AP, United Kingdom. .,Institute for Food, Nutrition and Health, University of Reading, Reading, RG6 6AP, United Kingdom.
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Impact of meal fatty acid composition on postprandial lipaemia, vascular function and blood pressure in postmenopausal women. Nutr Res Rev 2018; 31:193-203. [DOI: 10.1017/s0954422418000033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
AbstractCVD are the leading cause of death in women globally, with ageing associated with progressive endothelial dysfunction and increased CVD risk. Natural menopause is characterised by raised non-fasting TAG concentrations and impairment of vascular function compared with premenopausal women. However, the mechanisms underlying the increased CVD risk after women have transitioned through the menopause are unclear. Dietary fat is an important modifiable risk factor relating to both postprandial lipaemia and vascular reactivity. Meals rich in SFA and MUFA are often associated with greater postprandial TAG responses compared with those containing n-6 PUFA, but studies comparing their effects on vascular function during the postprandial phase are limited, particularly in postmenopausal women. The present review aimed to evaluate the acute effects of test meals rich in SFA, MUFA and n-6 PUFA on postprandial lipaemia, vascular reactivity and other CVD risk factors in postmenopausal women. The systematic search of the literature identified 778 publications. The impact of fat-rich meals on postprandial lipaemia was reported in seven relevant studies, of which meal fat composition was compared in one study described in three papers. An additional study determined the impact of a high-fat meal on vascular reactivity. Although moderately consistent evidence suggests detrimental effects of high-fat meals on postprandial lipaemia in postmenopausal (than premenopausal) women, there is insufficient evidence to establish the impact of meals of differing fat composition. Furthermore, there is no robust evidence to conclude the effect of meal fatty acids on vascular function or blood pressure. In conclusion, there is an urgent requirement for suitably powered robust randomised controlled trials to investigate the impact of meal fat composition on postprandial novel and established CVD risk markers in postmenopausal women, an understudied population at increased cardiometabolic risk.
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Thackray AE, Barrett LA, Tolfrey K. Sex differences in postprandial lipaemia after acute high-intensity interval running in young people. J Sports Sci 2017; 36:1673-1681. [DOI: 10.1080/02640414.2017.1409610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Alice E. Thackray
- Paediatric Exercise Physiology Research Group, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Laura A. Barrett
- Paediatric Exercise Physiology Research Group, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
| | - Keith Tolfrey
- Paediatric Exercise Physiology Research Group, School of Sport, Exercise and Health Sciences, Loughborough University, Loughborough, UK
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Flavanone-rich citrus beverages counteract the transient decline in postprandial endothelial function in humans: a randomised, controlled, double-masked, cross-over intervention study. Br J Nutr 2017; 116:1999-2010. [PMID: 28065188 DOI: 10.1017/s0007114516004219] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Specific flavonoid-rich foods/beverages are reported to exert positive effects on vascular function; however, data relating to effects in the postprandial state are limited. The present study investigated the postprandial, time-dependent (0-7 h) impact of citrus flavanone intake on vascular function. An acute, randomised, controlled, double-masked, cross-over intervention study was conducted by including middle-aged healthy men (30-65 years, n 28) to assess the impact of flavanone intake (orange juice: 128·9 mg; flavanone-rich orange juice: 272·1 mg; homogenised whole orange: 452·8 mg; isoenergetic control: 0 mg flavanones) on postprandial (double meal delivering a total of 81 g of fat) endothelial function. Endothelial function was assessed by flow-mediated dilatation (FMD) of the brachial artery at 0, 2, 5 and 7 h. Plasma levels of naringenin/hesperetin metabolites (sulphates and glucuronides) and nitric oxide species were also measured. All flavanone interventions were effective at attenuating transient impairments in FMD induced by the double meal (7 h post intake; P<0·05), but no dose-response effects were observed. The effects on FMD coincided with the peak of naringenin/hesperetin metabolites in circulation (7 h) and sustained levels of plasma nitrite. In summary, citrus flavanones are effective at counteracting the negative impact of a sequential double meal on human vascular function, potentially through the actions of flavanone metabolites on nitric oxide.
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D’Addato S, Palmisano S, Borghi C. How important are triglycerides as risk factors? J Cardiovasc Med (Hagerstown) 2017; 18 Suppl 1:e7-e12. [DOI: 10.2459/jcm.0000000000000438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Jackson KG, Lockyer S, Carvalho-Wells AL, Williams CM, Minihane AM, Lovegrove JA. Apolipoprotein E (epsilon) genotype has a greater impact on apoB-48 than apoB-100 responses to dietary fat manipulation-insights from the SATgenε study. Mol Nutr Food Res 2016; 61. [PMID: 27935250 DOI: 10.1002/mnfr.201600688] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 11/29/2016] [Accepted: 11/30/2016] [Indexed: 11/10/2022]
Abstract
SCOPE To determine the contribution of intestinally and liver-derived lipoproteins to the postprandial plasma triacylglycerol (TAG) response in APOE3/E3 and E3/E4 individuals following chronic dietary fat manipulation. METHODS AND RESULTS In sequential order, participants (n = 12 E3/E3, n = 11 E3/E4) followed low fat; high-fat, high-saturated fat (HSF); and HSF with 3.45 g/day docosahexaenoic acid (HSF-DHA) diets, each for 8 weeks. After each dietary period, an acute test meal with a macronutrient profile representative of the dietary intervention was consumed. Apolipoprotein (apo)B isoforms were determined in isolated TAG-rich lipoprotein fractions (Svedberg flotation rate (Sf ) > 400, Sf 60-400, and Sf 20-60) by specific ELISA. A genotype × meal/diet interaction for the Sf > 400 fraction apoB-48 response (p < 0.05) was observed, with higher concentrations reached after the low fat than HSF-DHA meal in E4 carriers. This finding was associated with a lower TAG content of the Sf > 400 particles. Fasting Sf 60-400 and 20-60 apoB-48 concentrations were also significantly higher in E4 carriers. No impact of genotype on the apoB-100 responses was evident. CONCLUSION Our study revealed marked effects of dietary fat composition on the Sf > 400 apoB-48 response and particle TAG content in E4 carriers relative to the "wild-type" E3/E3 genotype, which suggest APOE genotype is a potential modulator of chylomicron particle synthesis.
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Affiliation(s)
- Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Stacey Lockyer
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Andrew L Carvalho-Wells
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Christine M Williams
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Anne M Minihane
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
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Jackson KG, Li Y, Ryan MF, Gibney ER, Brennan L, Roche HM, Williams CM, Lovegrove JA, Vimaleswaran KS. Association of the tumor necrosis factor-alpha promoter polymorphism with change in triacylglycerol response to sequential meals. Nutr J 2016; 15:70. [PMID: 27456841 PMCID: PMC4960705 DOI: 10.1186/s12937-016-0190-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 07/06/2016] [Indexed: 11/18/2022] Open
Abstract
Background Reported associations between Tumor Necrosis Factor-alpha (TNFA) and the postprandial triacylglycerol (TAG) response have been inconsistent, which could be due to variations in the TNFA gene, meal fat composition or participant’s body weight. Hence, we investigated the association of TNFA polymorphism (−308G → A) with body mass index (BMI) and postprandial lipaemia and also determined the impact of BMI on the association of the polymorphism with postprandial lipaemia. Methods The study participants (n = 230) underwent a sequential meal postprandial study. Blood samples were taken at regular intervals after a test breakfast (t = 0, 49 g fat) and lunch (t =330 min, 29 g fat) to measure fasting and postprandial lipids, glucose and insulin. The Metabolic Challenge Study (MECHE) comprising 67 Irish participants who underwent a 54 g fat oral lipid tolerance test was used as a replication cohort. The impact of genotype on postprandial responses was determined using general linear model with adjustment for potential confounders. Results The -308G → A polymorphism showed a significant association with BMI (P = 0.03) and fasting glucose (P = 0.006), where the polymorphism explained 13 % of the variation in the fasting glucose. A 30 % higher incremental area under the curve (IAUC) was observed for the postprandial TAG response in the GG homozygotes than A-allele carriers (P = 0.004) and the genotype explained 19 % of the variation in the IAUC. There was a non-significant trend in the impact of BMI on the association of the genotype with TAG IAUC (P = 0.09). These results were not statistically significant in the MECHE cohort, which could be due to the differences in the sample size, meal composition, baseline lipid profile, allelic diversity and postprandial characterisation of participants across the two cohorts. Conclusions Our findings suggest that TNFA -308G → A polymorphism may be an important candidate for BMI, fasting glucose and postprandial TAG response. Further studies are required to investigate the mechanistic effects of the polymorphism on glucose and TAG metabolism, and determine whether BMI is an important variable which should be considered in the design of future studies. Trial registration NCT01172951.
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Affiliation(s)
- Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Yue Li
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Miriam F Ryan
- UCD Institute of Food & Health, University College Dublin, Dublin, Ireland
| | - Eileen R Gibney
- UCD Institute of Food & Health, University College Dublin, Dublin, Ireland
| | - Lorraine Brennan
- UCD Institute of Food & Health, University College Dublin, Dublin, Ireland
| | - Helen M Roche
- UCD Institute of Food & Health, University College Dublin, Dublin, Ireland
| | - Christine M Williams
- Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK.,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK
| | - Karani S Vimaleswaran
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading, UK. .,Institute for Cardiovascular and Metabolic Research (ICMR), University of Reading, Reading, UK.
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Impact of Lipoprotein Lipase Gene Polymorphism, S447X, on Postprandial Triacylglycerol and Glucose Response to Sequential Meal Ingestion. Int J Mol Sci 2016; 17:397. [PMID: 26999119 PMCID: PMC4813252 DOI: 10.3390/ijms17030397] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Revised: 03/07/2016] [Accepted: 03/09/2016] [Indexed: 11/23/2022] Open
Abstract
Lipoprotein lipase (LPL) is a key rate-limiting enzyme for the hydrolysis of triacylglycerol (TAG) in chylomicrons and very low-density lipoprotein. Given that postprandial assessment of lipoprotein metabolism may provide a more physiological perspective of disturbances in lipoprotein homeostasis compared to assessment in the fasting state, we have investigated the influence of two commonly studied LPL polymorphisms (rs320, HindIII; rs328, S447X) on postprandial lipaemia, in 261 participants using a standard sequential meal challenge. S447 homozygotes had lower fasting HDL-C (p = 0.015) and a trend for higher fasting TAG (p = 0.057) concentrations relative to the 447X allele carriers. In the postprandial state, there was an association of the S447X polymorphism with postprandial TAG and glucose, where S447 homozygotes had 12% higher TAG area under the curve (AUC) (p = 0.037), 8.4% higher glucose-AUC (p = 0.006) and 22% higher glucose-incremental area under the curve (IAUC) (p = 0.042). A significant gene–gender interaction was observed for fasting TAG (p = 0.004), TAG-AUC (Pinteraction = 0.004) and TAG-IAUC (Pinteraction = 0.016), where associations were only evident in men. In conclusion, our study provides novel findings of an effect of LPL S447X polymorphism on the postprandial glucose and gender-specific impact of the polymorphism on fasting and postprandial TAG concentrations in response to sequential meal challenge in healthy participants.
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Lovegrove JA, Commane DM, Jackson KG, Karani V, Kennedy OB, Kuhnle GG, Spencer JPE, Wagstaff C, Yaqoob P. The Hugh Sinclair Unit of Human Nutrition - 20 years of research 1995-2015. NUTR BULL 2015. [DOI: 10.1111/nbu.12176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. A. Lovegrove
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - D. M. Commane
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - K. G. Jackson
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - V. Karani
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - O. B. Kennedy
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - G. G. Kuhnle
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - J. P. E. Spencer
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - C. Wagstaff
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
| | - P. Yaqoob
- Hugh Sinclair Unit of Human Nutrition; Department of Food and Nutritional Sciences; University of Reading, Whiteknights; Reading UK
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Rosenson RS, Davidson MH, Hirsh BJ, Kathiresan S, Gaudet D. Genetics and causality of triglyceride-rich lipoproteins in atherosclerotic cardiovascular disease. J Am Coll Cardiol 2015; 64:2525-40. [PMID: 25500239 DOI: 10.1016/j.jacc.2014.09.042] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Revised: 09/18/2014] [Accepted: 09/21/2014] [Indexed: 12/31/2022]
Abstract
Triglycerides represent 1 component of a heterogeneous pool of triglyceride-rich lipoproteins (TGRLs). The reliance on triglycerides or TGRLs as cardiovascular disease (CVD) risk biomarkers prompted investigations into therapies that lower plasma triglycerides as a means to reduce CVD events. Genetic studies identified TGRL components and pathways involved in their synthesis and metabolism. We advocate that only a subset of genetic mechanisms regulating TGRLs contribute to the risk of CVD events. This "omic" approach recently resulted in new targets for reducing CVD events.
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Affiliation(s)
- Robert S Rosenson
- Mount Sinai Heart, Cardiometabolic Disorders, Icahn School of Medicine at Mount Sinai, New York, New York.
| | - Michael H Davidson
- Division of Cardiology, Pritzker School of Medicine, University of Chicago, Chicago, Illinois
| | | | - Sekar Kathiresan
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Daniel Gaudet
- ECOGENE-21 and Lipid Clinic, Department of Medicine, Université de Montreal, Chicoutimi, Quebec, Canada
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Calabuig-Navarro MV, Jackson KG, Walden CM, Minihane AM, Lovegrove JA. Apolipoprotein E genotype has a modest impact on the postprandial plasma response to meals of varying fat composition in healthy men in a randomized controlled trial. J Nutr 2014; 144:1775-80. [PMID: 25332476 DOI: 10.3945/jn.114.197244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND Apolioprotein E (APOE) genotype is reported to influence a person's fasting lipid profile and potentially the response to dietary fat manipulation. The impact of APOE genotype on the responsiveness to meals of varying fat composition is unknown. OBJECTIVE We examined the effect of meals containing 50 g of fat rich in saturated fatty acids (SFAs), unsaturated fatty acids (UNSATs), or SFAs with fish oil (SFA-FO) on postprandial lipemia. METHOD A randomized, controlled, test meal study was performed in men recruited according to the APOE genotype (n = 10 APOE3/3, n = 11 APOE3/E4). RESULTS For the serum apoE response (meal × genotype interaction P = 0.038), concentrations were on average 8% lower after the UNSAT than the SFA-FO meal in APOE4 carriers (P = 0.015) only. In the genotype groups combined, there was a delay in the time to reach maximum triacylglycerol (TG) concentration (mean ± SEM: 313 ± 25 vs. 266 ± 27 min) and higher maximum nonesterified fatty acid (0.73 ± 0.05 vs. 0.60 ± 0.03 mmol/L) and glucose (7.92 ± 0.22 vs. 7.25 ± 0.22 mmol/L) concentrations after the SFA than the UNSAT meal, respectively (P ≤ 0.05). In the Svedberg flotation rate 60-400 TG-rich lipoprotein fraction, meal × genotype interactions were observed for incremental area under the curve (IAUC) for the TG (P = 0.038) and apoE (P = 0.016) responses with a 58% lower apoE IAUC after the UNSAT than the SFA meal (P = 0.017) in the E4 carriers. CONCLUSIONS Our data indicate that APOE genotype had a modest impact on the postprandial response to meals of varying fat composition in normolipidemic men. The physiologic importance of greater apoE concentrations after the SFA-rich meals in APOE4 carriers may reflect an impact on TG-rich lipoprotein clearance from the circulation. This trial was registered at clinicaltrials.gov as NCT01522482.
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Affiliation(s)
- M Virtu Calabuig-Navarro
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, UK; and
| | - Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, UK; and
| | | | - Anne-Marie Minihane
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, and
| | - Julie A Lovegrove
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, and Institute for Cardiovascular and Metabolic Research, University of Reading, Reading, UK; and
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TOLFREY KEITH, ENGSTROM ALEX, MURPHY CAOILEANN, THACKRAY ALICE, WEAVER ROBERT, BARRETT LAURAA. Exercise Energy Expenditure and Postprandial Lipemia in Girls. Med Sci Sports Exerc 2014; 46:239-46. [DOI: 10.1249/mss.0b013e3182a59ab1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Jackson KG, Walden CM, Murray P, Smith AM, Minihane AM, Lovegrove JA, Williams CM. Greater impairment of postprandial triacylglycerol than glucose response in metabolic syndrome subjects with fasting hyperglycaemia. Metabolism 2013; 62:1065-9. [PMID: 23598085 DOI: 10.1016/j.metabol.2013.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 03/08/2013] [Accepted: 03/09/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Studies have started to question whether a specific component or combinations of metabolic syndrome (MetS) components may be more important in relation to cardiovascular disease risk. Our aim was to examine the impact of the presence of raised fasting glucose as a MetS component on postprandial lipaemia. METHODS Men classified with the MetS underwent a sequential test meal investigation, in which blood samples were taken at regular intervals after a test breakfast (t=0 min) and lunch (t=330 min). Lipids, glucose and insulin were measured in the fasting and postprandial samples. RESULTS MetS subjects with 3 or 4 components were subdivided into those without (n=34) and with (n=23) fasting hyperglycaemia (≥5.6 mmol/l), irrespective of the combination of components. Fasting lipids and insulin were similar in the two groups, with glucose significantly higher in the men with glucose as a MetS component (P<0.001). Following the test meals, there were higher maximum concentration (maxC), area under the curve (AUC) and incremental AUC (P ≤0.016) for the postprandial triacylglycerol (TAG) response in men with fasting hyperglycaemia. Greater glucose AUC (P<0.001) and insulin maxC (P=0.010) were also observed in these individuals after the test meals. Multiple regression analysis revealed fasting glucose to be an important predictor of the postprandial TAG and glucose response. CONCLUSION Our data analysis has revealed a greater impairment of postprandial TAG than glucose response in MetS subjects with raised fasting glucose. The worsening of postprandial lipaemic control may contribute to the greater CVD risk reported in individuals with MetS component combinations which include hyperglycaemia.
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Affiliation(s)
- Kim G Jackson
- Hugh Sinclair Unit of Human Nutrition, Department of Food and Nutritional Sciences, University of Reading, Reading RG6 6AP, UK.
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Jackson KG, Delgado-Lista J, Gill R, Lovegrove JA, Williams CM, López-Miranda J, Minihane AM. The leptin receptor Gln223Arg polymorphism (rs1137101) mediates the postprandial lipaemic response, but only in males. Atherosclerosis 2012; 225:135-41. [DOI: 10.1016/j.atherosclerosis.2012.08.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 08/22/2012] [Accepted: 08/25/2012] [Indexed: 10/27/2022]
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Jackson KG, Poppitt SD, Minihane AM. Postprandial lipemia and cardiovascular disease risk: Interrelationships between dietary, physiological and genetic determinants. Atherosclerosis 2012; 220:22-33. [DOI: 10.1016/j.atherosclerosis.2011.08.012] [Citation(s) in RCA: 171] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2011] [Revised: 07/11/2011] [Accepted: 08/08/2011] [Indexed: 12/16/2022]
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A sequential two meal challenge reveals abnormalities in postprandial TAG but not glucose in men with increasing numbers of metabolic syndrome components. Atherosclerosis 2012; 220:237-43. [DOI: 10.1016/j.atherosclerosis.2011.09.047] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Revised: 09/15/2011] [Accepted: 09/26/2011] [Indexed: 11/20/2022]
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