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Silveira JM, Ribeiro TS, Guilarducci MJ, Reis MG, Vieira RAL, Guimarães NS, Gomes JMG. Effect of fish-oil supplementation on the glycemic and lipidemic profiles of pregnant women: a systematic review and meta-analysis. Nutr Rev 2024:nuad158. [PMID: 38318725 DOI: 10.1093/nutrit/nuad158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2024] Open
Abstract
CONTEXT Pregnant women have physiological metabolic changes in glycemic and lipid profiles that are essential for fetal development. OBJECTIVE The aim of this systematic review was to analyze the effects of fish-oil-capsule supplementation on the glycemic and lipid profiles of pregnant women. DATA SOURCES A systematic search was conducted of the MEDLINE (by PubMed), Embase, Cochrane Library (CENTRAL) databases and gray literature, including preprints for all relevant studies published in English, with no date restrictions. DATA EXTRACTION The estimated pooled results were analyzed using a random-effects model and represented by mean differences (MDs) and corresponding 95% confidence intervals (CIs). The analyses were performed with R software, version 4.2.1, using the "Meta" packages, versions 6.0-0. DATA ANALYSIS Fifteen eligible studies were included after screening. In a pooled analysis, overall fish-oil supplementation had no effect on parameters compared with placebo. In the subgroup analysis, fish-oil supplementation may be beneficial in insulin (MD: -2.11 IU/mL; 95% CI: -3.86, -0.36) and homeostasis model assessment of insulin resistance (HOMA-IR) (MD: -0.71; 95% CI: -1.14, -0.29) indices, with heterogeneity (I2 =0%) among pregnant women with diabetes mellitus. In the subgroup with doses of eicosapentaenoic acid (EPA) below 200 mg, there was a reduction in HOMA-IR in the intervention group (MD: -0.60; 95% CI: -1.14, -0.06). CONCLUSION Pregnant women taking fish-oil capsules showed significant beneficial changes in the subgroups of type 2 diabetes and EPA dosages below 200 mg for insulin and HOMA-IR.
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Affiliation(s)
- Julie M Silveira
- Instituto Federal do Sudeste de Minas Gerais, Campus Barbacena, Brazil
| | - Thassia S Ribeiro
- Instituto Federal do Sudeste de Minas Gerais, Campus Barbacena, Brazil
| | | | | | | | - Nathalia S Guimarães
- Faculdade Ciências Médicas de Minas Gerais, Belo Horizonte, Brazil
- Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Júnia M G Gomes
- Instituto Federal do Sudeste de Minas Gerais, Campus Barbacena, Brazil
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Xestospongia muta Fraction-7 and Linoleic Acid: Effects on SR-BI Gene Expression and HDL Cholesterol Uptake. Mar Drugs 2022; 20:md20120762. [PMID: 36547909 PMCID: PMC9784671 DOI: 10.3390/md20120762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/29/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022] Open
Abstract
Xestospongia muta is a marine sponge belonging to the family Petrosiidae. It is an important source of biologically active marine natural products, with different kinds of essential fatty acids. Scavenger receptor class B type I (SR-BI) is the main receptor for high-density lipoprotein (HDL) cholesterol, which plays a pivotal role in preventing atherosclerosis. It removes cholesterol from HDL cholesterol, returning lipid-poor lipoprotein into blood circulation. The present study investigated the effects of X. muta Fraction-7 and linoleic acid on SR-BI gene expression and HDL cholesterol uptake. In vitro studies of the activity of X. muta and linoleic acid against the therapeutic target for hypercholesterolemia were conducted using the HDL receptor SR-BI via luciferase assay and HepG2 cells. In the present study, Fraction-7 of X. muta showed the highest expression level of the SR-BI gene via luciferase assay. Profiling of Fraction-7 of X. muta by GC-MS revealed 58 compounds, comprising various fatty acids, particularly linoleic acid. The in vitro study in HepG2 cells showed that the Fraction-7 of X. muta and linoleic acid (an active compound in X. muta) increased SR-BI mRNA expression by 129% and 85%, respectively, compared to the negative control. Linoleic acid increased HDL uptake by 3.21-fold compared to the negative control. Thus, the Fraction-7 of X. muta and linoleic acid have the potential to be explored as adjuncts in the treatment of hypercholesterolemia to prevent or reduce the severity of atherosclerosis development.
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Prater MC, Scheurell AR, Paton CM, Cooper JA. Blood Lipid Responses to Diets Enriched with Cottonseed Oil Compared With Olive Oil in Adults with High Cholesterol in a Randomized Trial. J Nutr 2022; 152:2060-2071. [PMID: 35511204 PMCID: PMC9449680 DOI: 10.1093/jn/nxac099] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/25/2022] [Accepted: 04/26/2022] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Increasing unsaturated fat intake is beneficial for cardiovascular health, but the type of unsaturated fat to recommend remains equivocal. OBJECTIVES We investigated the effects of an 8-week diet intervention that was rich in either cottonseed oil (CSO; PUFA rich) or olive oil (OO; MUFA rich) on blood lipids in hypercholesterolemic adults. METHODS Forty-three men and women with hypercholesterolemia (53 ± 10 years; BMI, 27.6 ± 4.8 kg/m2) completed this randomized parallel clinical trial consisting of an 8-week partial outpatient feeding intervention. Participants were given meals and snacks accounting for ∼60% of their daily energy needs, with 30% of energy needs from either CSO (n = 21) or OO (n = 22). At pre- and postdiet intervention visits, participants consumed a high-SFA meal (35% of total energy needs; 70% of energy from fat). The primary outcomes of fasting cholesterol profiles and secondary outcomes of postprandial blood lipids and glycemic markers were assessed over a 5-hour period. RESULTS There were greater reductions from baseline to week 8 in fasting serum total cholesterol (TC; -17.0 ± 3.94 mg/dL compared with -2.18 ± 3.72 mg/dL, respectively; P = 0.008), LDL cholesterol (-19.7 ± 3.94 mg/dL compared with -5.72 ± 4.23 mg/dL, respectively; P = 0.018), non-HDL cholesterol (-20.8 mg/dL ± 4.00 compared with -6.61 ± 4.01 mg/dL, respectively; P = 0.014), and apoB (-11.8 mg/dL ± 2.37 compared with -3.10 ± 2.99 mg/dL, respectively; P = 0.05), in CSO compared with OO. There were also visit effects from baseline to week 8 for increases in HDL cholesterol (CSO, 56.5 ± 2.79 mg/dL to 60.2 ± 3.35 mg/dL, respectively; OO: 59.7 ± 2.63 mg/dL to 64.1 ± 2.24 mg/dL, respectively; P < 0.001), and decreases in the TC:HDL-cholesterol ratio (CSO, 4.30 ± 0.27 mg/dL to 3.78 ± 0.27 mg/dL, respectively; OO, 3.94 ± 0.16 mg/dL to 3.57 ± 0.11 mg/dL, respectively; P < 0.001), regardless of group assignment. In response to the high-SFA meal, there were differences in postprandial plasma glucose (P = 0.003) and triglyceride (P = 0.004) responses and a trend in nonesterified fatty acids (P = 0.11) between groups, showing protection in the postprandial state from an occasional high-SFA fat meal with CSO, but not OO, diet enrichment. CONCLUSIONS CSO, but not OO, diet enrichment caused substantial improvements in fasting and postprandial blood lipids and postprandial glycemia in hypercholesterolemic adults. This trial was registered at clinicaltrials.gov as NCT04397055.
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Affiliation(s)
- M Catherine Prater
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Alexis R Scheurell
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA
| | - Chad M Paton
- Department of Nutritional Sciences, University of Georgia, Athens, GA, USA,Department of Food Science and Technology, University of Georgia, Athens, GA, USA
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Effects of supplementation with vegetable sources of alpha-linolenic acid (ALA) on inflammatory markers and lipid profile in individuals with chronic kidney disease: A systematic review and meta-analysis. Clin Nutr 2022; 41:1434-1444. [DOI: 10.1016/j.clnu.2022.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 02/04/2022] [Accepted: 02/16/2022] [Indexed: 11/20/2022]
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Vela-Vásquez DA, Sifuentes-Rincón AM, Delgado-Enciso I, Delgado-Enciso OG, Ordaz-Pichardo C, Arellano-Vera W, Treviño-Alvarado V. Improvement of serum lipid parameters in consumers of Mexican Wagyu-Cross beef: A randomized controlled trial. J Food Sci 2021; 86:2713-2726. [PMID: 33929040 DOI: 10.1111/1750-3841.15739] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 02/25/2021] [Accepted: 03/24/2021] [Indexed: 11/27/2022]
Abstract
Beef is considered an excellent source of high-quality protein and micronutrients. The high saturated fatty acid (SFA) composition of beef has been associated with cardiovascular diseases; however, this is a controversial issue because at present, no evidence has scientifically proven such an association. Wagyu cattle have been used as an option to generate high-quality fatty acids (FAs) in beef and have been crossed with local beef cattle (Wagyu-Cross). In Mexico, Wagyu-Cross is marketed assuming the same quality as purebred Wagyu meat without scientific support. This study aimed to determine whether the differences in the FA composition of Wagyu-Cross and commercial beef affected lipid metabolism in frequent consumers of beef. The study is a randomized, controlled, double-blinded phase IV clinical trial. Thirty-four volunteers completed treatments in which 120 g ground beef was consumed 3 days per week for 2 weeks. Volunteers were randomized to the "A" (commercial meat) or "B" (Wagyu-Cross meat) groups. The beef fat content was 87% higher, the SFA content was 2.3% lower, and the monounsaturated fatty acid (MUFA) C18:1 n-9 concentrations were higher in Wagyu-Cross beef than in commercial beef. The B group exhibited a significantly larger change from baseline in the serum lipid profile in total cholesterol (TC) (-4.7% versus +6.9%), low-density lipoprotein (LDL) (-4.1% versus +10.0%), nonhigh-density lipoprotein (non-HDL) (-6.1% versus +4.9%), and the ratio of three atherogenic indexes-TC/HDL (-3.5% versus +6.4%), LDL/HDL (-2.8% versus +14.6%), and non-HDL/HDL (-4.7% versus +9.3%)-than the A group. This result confirms that meat FA composition is a key point for redirecting cattle breeding strategies and promotes beef as a healthful protein source. PRACTICAL APPLICATION: Here, we found new evidence based on a clinical trial that beef with a favorable fatty acid composition (i.e., monounsaturated fatty acid and polyunsaturated fatty acid content) is a key factor in improving parameters associated with consumer health. This information will support the design of cattle breeding strategies as an option to promote beef consumption as a healthier protein source and create opportunities for the development of the functional food industry.
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Affiliation(s)
- Diana A Vela-Vásquez
- Centro de Biotecnología Genómica, LBA, Instituto Poliécnico Nacional, Blvd del Maestro esq Elias Piña, Reynosa, México, 88710, Mexico
| | - Ana M Sifuentes-Rincón
- Centro de Biotecnología Genómica, LBA, Instituto Poliécnico Nacional, Blvd del Maestro esq Elias Piña, Reynosa, México, 88710, Mexico
| | - Ivan Delgado-Enciso
- Facultad de Medicina de la Universidad de Colima & Instituto Estatal de Cancerología de los Servicios de Salud del Estado de Colima, Colima, Mexico
| | - Osiris G Delgado-Enciso
- Facultad de Medicina de la Universidad de Colima & Instituto Estatal de Cancerología de los Servicios de Salud del Estado de Colima, Colima, Mexico
| | | | - Williams Arellano-Vera
- Centro de Biotecnología Genómica, LBA, Instituto Poliécnico Nacional, Blvd del Maestro esq Elias Piña, Reynosa, México, 88710, Mexico
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Kalra D, Vijayaraghavan K, Sikand G, Desai NR, Joshi PH, Mehta A, Karmally W, Vani A, Sitafalwalla SJ, Puri R, Duell PB, Brown A. Prevention of atherosclerotic cardiovascular disease in South Asians in the US: A clinical perspective from the National Lipid Association. J Clin Lipidol 2021; 15:402-422. [PMID: 33846108 DOI: 10.1016/j.jacl.2021.03.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 03/20/2021] [Indexed: 12/24/2022]
Abstract
It is now well recognized that South Asians living in the US (SAUS) have a higher prevalence of atherosclerotic cardiovascular disease (ASCVD) that begins earlier and is more aggressive than age-matched people of other ethnicities. SA ancestry is now recognized as a risk enhancer in the US cholesterol treatment guidelines. The pathophysiology of this is not fully understood but may relate to insulin resistance, genetic and dietary factors, lack of physical exercise, visceral adiposity and other, yet undiscovered biologic mechanisms. In this expert consensus document, we review the epidemiology of ASCVD in this population, enumerate the challenges faced in tackling this problem, provide strategies for early screening and education of the community and their healthcare providers, and offer practical prevention strategies and culturally-tailored dietary advice to lower the rates of ASCVD in this cohort.
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Affiliation(s)
- Dinesh Kalra
- Division of Cardiology, Rush University Medical Center, 1620W. Harrison St, Kellogg Suite 320, Chicago, IL 60612, United States.
| | | | - Geeta Sikand
- University of California Irvine School of Medicine, Irvine, CA, United States
| | - Nihar R Desai
- Yale School of Medicine, New Haven, CT, United States
| | - Parag H Joshi
- University of Texas Southwestern Medical Center, Dallas, TX, United States
| | - Anurag Mehta
- Emory University School of Medicine, Atlanta, GA, United States
| | - Wahida Karmally
- Columbia University Irving Medical Center, New York, NY, United States
| | - Anish Vani
- New York University Langone Health, New York, NY, United States
| | | | - Raman Puri
- Lipid Association of India, New Delhi, India
| | - P Barton Duell
- Oregon Health and Science University, Portland, OR, United States
| | - Alan Brown
- Advocate Lutheran General Hospital, Park Ridge, IL, United States
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Choudhary M, Grover K, Singh M. Maize significance in Indian food situation to mitigate malnutrition. Cereal Chem 2020. [DOI: 10.1002/cche.10368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Monika Choudhary
- Field of Specialization‐Food and Nutrition Farm Science Centre, Sangrur Punjab Agricultural University Ludhiana India
| | - Kiran Grover
- Field of Specialization‐Food and Nutrition Department of Food and Nutrition Punjab Agricultural University Ludhiana India
| | - Mandeep Singh
- Field of Specialization‐Agriculture Economics Farm Science Centre, Sangrur Punjab Agricultural University Ludhiana India
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Froyen E, Burns-Whitmore B. The Effects of Linoleic Acid Consumption on Lipid Risk Markers for Cardiovascular Disease in Healthy Individuals: A Review of Human Intervention Trials. Nutrients 2020; 12:E2329. [PMID: 32759714 PMCID: PMC7469037 DOI: 10.3390/nu12082329] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 07/30/2020] [Accepted: 08/01/2020] [Indexed: 02/07/2023] Open
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide. Risk factors for developing this disease include high serum concentrations of total cholesterol, triglycerides, low-density lipoproteins, very-low density lipoproteins, and low concentrations of high-density lipoproteins. One proposed dietary strategy for decreasing risk factors involves replacing a portion of dietary saturated fatty acids with mono- and polyunsaturated fatty acids (PUFAs). The essential omega-6 PUFA, linoleic acid (LA), is suggested to decrease the risk for CVD by affecting these lipid risk markers. Reviewing human intervention trials will provide further evidence of the effects of LA consumption on risk factors for CVD. PubMed was used to search for peer-reviewed articles. The purpose of this review was: (1) To summarize human intervention trials that studied the effects of LA consumption on lipid risk markers for CVD in healthy individuals, (2) to provide mechanistic details, and (3) to provide recommendations regarding the consumption of LA to decrease the lipid risk markers for CVD. The results from this review provided evidence that LA consumption decreases CVD lipid risk markers in healthy individuals.
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Affiliation(s)
- Erik Froyen
- Department of Nutrition and Food Science, Huntley College of Agriculture, California State Polytechnic University, Pomona, CA 91768, USA;
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Tsartsou E, Proutsos N, Castanas E, Kampa M. Network Meta-Analysis of Metabolic Effects of Olive-Oil in Humans Shows the Importance of Olive Oil Consumption With Moderate Polyphenol Levels as Part of the Mediterranean Diet. Front Nutr 2019; 6:6. [PMID: 30809527 PMCID: PMC6379345 DOI: 10.3389/fnut.2019.00006] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 01/16/2019] [Indexed: 12/28/2022] Open
Abstract
The beneficial role of olive oil consumption is nowadays widely recognized. However, it is not clear whether its health effects are due to the presence of monounsaturated lipids and/or to the antioxidant fraction of microconstituents present in olive oil. The aim of the present study was to analyze the exact role of olive oil in the modification of metabolic factors (glucose and circulating lipids) and explore the role of its antioxidant polyphenols. In the present work, we have performed a network meta-analysis of 30 human intervention studies, considering direct and indirect interactions and impact of each constituent. Interestingly, we show that the impact of olive oil on glucose, triglycerides, and LDL-cholesterol is mediated through an adherence to the Mediterranean diet, with the only notable effect of olive oil polyphenols being the increase of HDL-cholesterol, and the amelioration of the antioxidant and inflammatory status of the subjects. Additionally, we report for the first time that lower antioxidant polyphenol levels may be sufficient for the beneficial effects of olive oil, while we show that the lipid fraction of olive oil may be responsible for some of its beneficial actions. In all parameters examined the beneficial effect of olive oil was more pronounced in subjects with an established metabolic syndrome or other chronic conditions/diseases. In conclusion, all these findings provide new knowledge that could lead to re-establishment of the role of olive oil in human nutrition.
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Affiliation(s)
- Evangelia Tsartsou
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, Heraklion, Greece
| | | | - Elias Castanas
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, Heraklion, Greece
| | - Marilena Kampa
- Laboratory of Experimental Endocrinology, School of Medicine, University of Crete, Heraklion, Greece
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Maki KC, Eren F, Cassens ME, Dicklin MR, Davidson MH. ω-6 Polyunsaturated Fatty Acids and Cardiometabolic Health: Current Evidence, Controversies, and Research Gaps. Adv Nutr 2018; 9:688-700. [PMID: 30184091 PMCID: PMC6247292 DOI: 10.1093/advances/nmy038] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
The 2015 Dietary Guidelines for Americans recommend limiting the intake of saturated fatty acids (SFAs) to <10% of energy/d and replacing dietary SFAs with unsaturated fatty acids. A Presidential Advisory from the American Heart Association recently released its evaluation of the relation between dietary fats and cardiovascular disease (CVD), and also recommended a shift from SFAs to unsaturated fatty acids, especially polyunsaturated fatty acids (PUFAs), in conjunction with a healthy dietary pattern. However, the suggestion to increase the intake of PUFAs in general, and omega-6 (n-6) PUFAs in particular, continues to be controversial. This review was undertaken to provide an overview of the evidence and controversies regarding the effects of ω-6 PUFAs on cardiometabolic health, with emphasis on risks and risk factors for CVD (coronary heart disease and stroke) and type 2 diabetes mellitus (T2D). Results from observational studies show that higher intake of ω-6 PUFAs, when compared with SFAs or carbohydrate, is associated with lower risks for CVD events (10-30%), CVD and total mortality (10-40%), and T2D (20-50%). Findings from intervention studies on cardiometabolic risk factors suggest that ω-6 PUFAs reduce concentrations of LDL cholesterol and non-HDL cholesterol in a dose-dependent manner compared with dietary carbohydrate, and have a neutral effect on blood pressure. Despite the concern that ω-6 fatty acids increase inflammation, current evidence from studies in humans does not support this view. In conclusion, these findings support current recommendations to emphasize consumption of ω-6 PUFAs as a replacement of SFAs; additional randomized controlled trials with cardiometabolic disease outcomes will help to more clearly define the benefits and risks of this policy.
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Affiliation(s)
- Kevin C Maki
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Glen Ellyn, IL,Address correspondence to KCM (e-mail: )
| | - Fulya Eren
- ACH Food Companies, Inc., Oakbrook Terrace, IL
| | | | - Mary R Dicklin
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Glen Ellyn, IL
| | - Michael H Davidson
- Department of Medicine, Section of Cardiology, University of Chicago, Chicago, IL
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Maki KC, Hasse W, Dicklin MR, Bell M, Buggia MA, Cassens ME, Eren F. Corn Oil Lowers Plasma Cholesterol Compared with Coconut Oil in Adults with Above-Desirable Levels of Cholesterol in a Randomized Crossover Trial. J Nutr 2018; 148:1556-1563. [PMID: 30204921 PMCID: PMC6168703 DOI: 10.1093/jn/nxy156] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 06/27/2018] [Indexed: 12/14/2022] Open
Abstract
Background Few trials have examined the effects of coconut oil consumption in comparison with polyunsaturated fatty acid-rich oils such as corn oil. Objective This trial assessed the effects of consuming foods made with corn oil compared with coconut oil on lipids, glucose homeostasis, and inflammation. Methods This was a preliminary randomized crossover study of men (n = 12) and women (n = 13) with a mean age of 45.2 y, mean body mass index (in kg/m2) of 27.7, fasting LDL cholesterol ≥115 mg/dL and <190 mg/dL, and triglycerides (TGs) ≤375 mg/dL. Subjects consumed muffins and rolls providing 4 tablespoons (∼54 g) per day of corn oil or coconut oil as part of their habitual diets for 4 wk, with a 3-wk washout between conditions. Fasting plasma lipids and high-sensitivity C-reactive protein (hs-CRP) and glucose metabolism were assessed via an intravenous glucose tolerance test at baseline and 15 and 29 d of treatment. Responses were compared between treatments by ANCOVA. Results Median baseline concentrations of LDL cholesterol, non-HDL cholesterol, total cholesterol (total-C), HDL cholesterol, total-C:HDL cholesterol, and TGs were 123, 144, 188, 46.0, 4.21, and 92.5 mg/dL, respectively. Changes from baseline for corn oil and coconut oil conditions, respectively, were: LDL cholesterol (primary outcome; -2.7% compared with +4.6%), non-HDL cholesterol (-3.0% compared with +5.8%), total-C (-0.5% compared with +7.1%), HDL cholesterol (+5.4% compared with +6.5%), total-C:HDL cholesterol (-4.3% compared with -3.3%), and TGs (-2.1% compared with +6.0%). Non-HDL cholesterol responses were significantly different between corn and coconut oil conditions (P = 0.034); differences between conditions in total-C and LDL cholesterol approached significance (both P = 0.06). Responses for hs-CRP and carbohydrate homeostasis parameters did not differ significantly between diet conditions. Conclusions When incorporated into the habitual diet, consumption of foods providing ∼54 g of corn oil/d produced a more favorable plasma lipid profile than did coconut oil in adults with elevated cholesterol. This trial was registered at clinicaltrials.gov as NCT03202654.
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Affiliation(s)
- Kevin C Maki
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Glen Ellyn, IL,Great Lakes Clinical Trials, Chicago, IL,Address correspondence to KCM (e-mail: )
| | | | - Mary R Dicklin
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Glen Ellyn, IL
| | - Marjorie Bell
- Midwest Biomedical Research: Center for Metabolic and Cardiovascular Health, Glen Ellyn, IL
| | | | | | - Fulya Eren
- ACH Food Companies Inc., Oakbrook Terrace, IL
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Ghobadi S, Hassanzadeh-Rostami Z, Mohammadian F, Nikfetrat A, Ghasemifard N, Raeisi Dehkordi H, Faghih S. Comparison of blood lipid-lowering effects of olive oil and other plant oils: A systematic review and meta-analysis of 27 randomized placebo-controlled clinical trials. Crit Rev Food Sci Nutr 2018; 59:2110-2124. [PMID: 29420053 DOI: 10.1080/10408398.2018.1438349] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Objective: We aim to report a systematic review and meta-analysis of randomized controlled trials (RCTs) on effects of olive oil consumption compared with other plant oils on blood lipids. Methods: PubMed, web of science, Scopus, ProQuest, and Embase were systematically searched until September 2017, with no age, language and design restrictions. Weighed mean difference (WMD) and 95% confidence interval (CI) were expressed as effect size. Sensitivity analyses and pre specified subgroup was conducted to evaluate potential heterogeneity. Meta-regression analyses were performed to investigate association between blood lipid-lowering effects of olive oil and duration of treatment. Results: Twenty-seven trials, comprising 1089 participants met the eligibility criteria. Results of this study showed that compared to other plant oils, high-density lipoprotein level increased significantly more for OO (1.37 mg/dl: 95% CI: 0.4, 2.36). Also OO consumption reduced total cholesterol (TC) (6.27 mg/dl, 95% CI: 2.8, 10.6), Low-density lipoprotein (LDL-c) (4.2 mg/dl, 95% CI: 1.4, 7.01), and triglyceride (TG) (4.31 mg/dl, 95% CI: 0.5, 8.12) significantly less than other plant oils. There were no significant effects on Apo lipoprotein A1 and Apo lipoprotein B. Conclusion: This meta-analysis suggested that OO consumption decreased serum TC, LDL-c, and TG less but increased HDL-c more than other plant oils.
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Affiliation(s)
- Saeed Ghobadi
- a Shiraz University of Medical Sciences, Nutrition Research Center , School of Nutrition and Food Sciences , Shiraz , Iran (the Islamic Republic of)
| | - Zahra Hassanzadeh-Rostami
- b Shiraz University of Medical Sciences, Department of Community Nutrition , School of Nutrition and Food Sciences , Shiraz , Iran (the Islamic Republic of)
| | - Fatemeh Mohammadian
- c Shiraz University of Medical Sciences, Department of Physiology , School of Medicine, Shiraz University of Medical Sciences , Shiraz , Iran (the Islamic Republic of)
| | - Arash Nikfetrat
- d Shiraz University of Medical Sciences, Student Research Committee , School of Nutrition and Food Sciences , Shiraz , Iran (the Islamic Republic of)
| | - Negar Ghasemifard
- e Shiraz University of Medical Sciences , Shiraz , Iran (the Islamic Republic of)
| | - Hamidreza Raeisi Dehkordi
- f Shahid Sadoughi University of Medical Sciences and Health Services , Yazd , Iran (the Islamic Republic of)
| | - Shiva Faghih
- g Shiraz University of Medical Sciences, Department of Community Nutrition , School of Nutrition and Food Sciences , Shiraz , Iran (the Islamic Republic of)
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Ganesan K, Sukalingam K, Xu B. Impact of consumption and cooking manners of vegetable oils on cardiovascular diseases- A critical review. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2017.11.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Serum concentrations of vitamin E and carotenoids are altered in Alzheimer's disease: A case-control study. ALZHEIMERS & DEMENTIA-TRANSLATIONAL RESEARCH & CLINICAL INTERVENTIONS 2017; 3:432-439. [PMID: 29067349 PMCID: PMC5651431 DOI: 10.1016/j.trci.2017.06.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Introduction Oxidative stress has been implicated in the pathogenesis of Alzheimer's disease (AD). We investigated associations between serum levels of lipophilic antioxidants and AD. Methods Serum concentrations of retinol, two forms of vitamin E (α- and γ-tocopherol) and six carotenoids were quantified by high-performance liquid chromatography from patients with AD (n = 251) and cognitively intact controls (n = 308) and assessed by regression analyses. Results Serum levels of α-tocopherol and all six carotenoids were significantly lower in patients with AD compared with cognitively intact controls (P < .001). In contrast, γ-tocopherol was significantly higher in the serum of patients with AD (odds ratio = 1.17 [confidence intervals: 1.05–1.31]). Discussion Our findings implicate compromised serum antioxidant defenses in AD pathogenesis and differing biological roles for vitamin E isoforms. This highlights the need for improved understanding in the balanced upregulation of exogenous antioxidants related to dietary intake or supplement use in future nutritional intervention studies.
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Maki KC, Lawless AL, Kelley KM, Kaden VN, Geiger CJ, Palacios OM, Dicklin MR. Corn oil intake favorably impacts lipoprotein cholesterol, apolipoprotein and lipoprotein particle levels compared with extra-virgin olive oil. Eur J Clin Nutr 2016; 71:33-38. [DOI: 10.1038/ejcn.2016.169] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 07/21/2016] [Accepted: 07/22/2016] [Indexed: 11/09/2022]
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Jacobson TA, Maki KC, Orringer CE, Jones PH, Kris-Etherton P, Sikand G, La Forge R, Daniels SR, Wilson DP, Morris PB, Wild RA, Grundy SM, Daviglus M, Ferdinand KC, Vijayaraghavan K, Deedwania PC, Aberg JA, Liao KP, McKenney JM, Ross JL, Braun LT, Ito MK, Bays HE, Brown WV. National Lipid Association Recommendations for Patient-Centered Management of Dyslipidemia: Part 2. J Clin Lipidol 2015; 9:S1-122.e1. [DOI: 10.1016/j.jacl.2015.09.002] [Citation(s) in RCA: 315] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Sospedra I, Moral R, Escrich R, Solanas M, Vela E, Escrich E. Effect of High Fat Diets on Body Mass, Oleylethanolamide Plasma Levels and Oxytocin Expression in Growing Rats. J Food Sci 2015; 80:H1425-31. [DOI: 10.1111/1750-3841.12890] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/24/2015] [Indexed: 01/06/2023]
Affiliation(s)
- Isabel Sospedra
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
| | - Raquel Moral
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
| | - Raquel Escrich
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
| | - Montserrat Solanas
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
| | - Elena Vela
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
| | - Eduard Escrich
- Dept. of Cell Biology, Physiology and Immunology, Physiology Unit, Medicine School; Univ. Autònoma de Barcelona; Barcelona Spain
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Maki KC, Lawless AL, Kelley KM, Kaden VN, Geiger CJ, Dicklin MR. Corn oil improves the plasma lipoprotein lipid profile compared with extra-virgin olive oil consumption in men and women with elevated cholesterol: Results from a randomized controlled feeding trial. J Clin Lipidol 2015; 9:49-57. [DOI: 10.1016/j.jacl.2014.10.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2014] [Revised: 09/10/2014] [Accepted: 10/20/2014] [Indexed: 01/15/2023]
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Seyer A, Cantiello M, Bertrand-Michel J, Roques V, Nauze M, Bézirard V, Collet X, Touboul D, Brunelle A, Coméra C. Lipidomic and spatio-temporal imaging of fat by mass spectrometry in mice duodenum during lipid digestion. PLoS One 2013; 8:e58224. [PMID: 23560035 PMCID: PMC3616127 DOI: 10.1371/journal.pone.0058224] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Accepted: 02/01/2013] [Indexed: 11/19/2022] Open
Abstract
Intestinal absorption of dietary fat is a complex process mediated by enterocytes leading to lipid assembly and secretion of circulating lipoproteins as chylomicrons, vLDL and intestinal HDL (iHDL). Understanding lipid digestion is of importance knowing the correlation between excessive fat absorption and atherosclerosis. By using time-of-flight secondary ion mass spectrometry (TOF-SIMS), we illustrated a spatio-temporal localization of fat in mice duodenum, at different times of digestion after a lipid gavage, for the first time. Fatty acids progressively increased in enterocytes as well as taurocholic acid, secreted by bile and engaged in the entero-hepatic re-absorption cycle. Cytosolic lipid droplets (CLD) from enterocytes were originally purified separating chylomicron-like, intermediate droplets and smaller HDL-like. A lipidomic quantification revealed their contents in triglycerides, free and esterified cholesterol, phosphatidylcholine, sphingomyelin and ceramides but also in free fatty acids, mono- and di-acylglycerols. An acyl-transferase activity was identified and the enzyme monoacylglycerol acyl transferase 2 (MGAT2) was immunodetected in all CLD. The largest droplets was also shown to contain the microsomal triglyceride transfer protein (MTTP), the acyl-coenzyme A-cholesterol acyltransferases (ACAT) 1 and 2, hormone sensitive lipase (HSL) and adipose triglyceride lipase (ATGL). This highlights the fact that during the digestion of fats, enterocyte CLD contain some enzymes involved in the different stages of the metabolism of diet fatty acids and cholesterol, in anticipation of the crucial work of endoplasmic reticulum in the process. The data further underlines the dual role of chylomicrons and iHDL in fat digestion which should help to efficiently complement lipid-lowering therapy.
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Affiliation(s)
- Alexandre Seyer
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique (CNRS), Gif-sur-Yvette, France
| | - Michela Cantiello
- Institut National de la Santé et de la Recherche Médicale (INSERM) U563, Hôpital Purpan, Toulouse, France
| | - Justine Bertrand-Michel
- Institut National de la Santé et de la Recherche Médicale U1048, Hôpital Rangueil, Toulouse, France
| | - Véronique Roques
- Institut National de la Santé et de la Recherche Médicale U1048, Hôpital Rangueil, Toulouse, France
| | - Michel Nauze
- Institut National de la Santé et de la Recherche Médicale U1048, Hôpital Rangueil, Toulouse, France
| | - Valérie Bézirard
- Institut National de la Recherche Agronomique (INRA) UMR 1331, TOXALIM, Toulouse, France
| | - Xavier Collet
- Institut National de la Santé et de la Recherche Médicale U1048, Hôpital Rangueil, Toulouse, France
| | - David Touboul
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique (CNRS), Gif-sur-Yvette, France
| | - Alain Brunelle
- Centre de Recherche de Gif, Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique (CNRS), Gif-sur-Yvette, France
| | - Christine Coméra
- Institut National de la Santé et de la Recherche Médicale (INSERM) U563, Hôpital Purpan, Toulouse, France
- Institut National de la Recherche Agronomique (INRA) UMR 1331, TOXALIM, Toulouse, France
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Hoelzl C, Lorenz O, Haudek V, Gundacker N, Knasmüller S, Gerner C. Proteome alterations induced in human white blood cells by consumption of Brussels sprouts: Results of a pilot intervention study. Proteomics Clin Appl 2012; 2:108-17. [PMID: 21136784 DOI: 10.1002/prca.200780100] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Epidemiological studies indicate a correlation of cruciferous vegetables consumption with reduced incidence of cancer. This study was designed to investigate molecular mechanisms, which may help to understand the beneficial effects of Brussels sprout consumption. In order to avoid the limitations of in vitro model systems, we performed a dietary intervention study with five participants. We investigated, whether sprout consumption affects the proteome profile of primary white blood cells. In order to achieve maximal sensitivity in detecting specific adaptive proteome alterations, we metabolically labelled freshly isolated cells in the presence of (35) S-methionine/cysteine and performed autoradiographic quantification of protein synthesis. Proteins were separated by 2-DE and spots of interest were cut out, digested and identified by MS. After the intervention, we found a significant up-regulation of the synthesis of manganese superoxide dismutase (1.56-fold) and significant down-regulation of the synthesis of heat shock 70 kDa protein (hsp70; 2.27-fold). Both proteins play a role in malignant transformation of cells. Hsp-70 is involved in the regulation of apoptosis, which leads to elimination of cancer cells, while SOD plays a key role in protection against reactive oxygen species mediated effects. Our findings indicate that the alteration of the synthesis of these proteins may be involved in the anticarcinogenic effects of cruciferous vegetables, which was observed in earlier laboratory studies with animals.
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Affiliation(s)
- Christine Hoelzl
- Internal Medicine Clinic I, Institute of Cancer Research, Medical University of Vienna, Vienna, Austria
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Mandimika T, Paturi G, De Guzman CE, Butts CA, Nones K, Monro JA, Butler RC, Joyce NI, Mishra S, Ansell J. Effects of dietary broccoli fibre and corn oil on serum lipids, faecal bile acid excretion and hepatic gene expression in rats. Food Chem 2012. [DOI: 10.1016/j.foodchem.2011.09.117] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Muhlhausler BS, Gibson RA, Makrides M. The effect of maternal omega-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) supplementation during pregnancy and/or lactation on body fat mass in the offspring: a systematic review of animal studies. Prostaglandins Leukot Essent Fatty Acids 2011; 85:83-8. [PMID: 21601438 DOI: 10.1016/j.plefa.2011.04.027] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 03/28/2011] [Accepted: 04/15/2011] [Indexed: 12/21/2022]
Abstract
Dietary n-3 long-chain polyunsaturated fatty acids (n-3 LCPUFA) reduce adipogenesis and lipogenesis in adult rodents, but it is not clear whether an increased n-3 LCPUFA supply during the perinatal period influences body fat mass in the offspring. This systematic review aimed to evaluate the existing evidence from animal studies, which have addressed this question. Medline was searched for relevant articles. Studies were included if they involved maternal n-3 PUFA or LCPUFA supplementation and measured fat mass in the offspring. The design and quality of each study was assessed. Only four animal studies met our inclusion criteria. Three studies reported a lower fat mass in offspring of n-3 LCPUFA supplemented dams, however only one of these studies confined the intervention to the perinatal period. The dose of n-3 PUFA, the nature of the control treatment, the approaches used and outcomes assessed differed between studies. This review highlights the paucity of robust animal data as to the effect of increased n-3 LCPUFA exposure during the perinatal period alone, on body fat mass in the offspring and calls for further studies.
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Affiliation(s)
- B S Muhlhausler
- FOODplus Research Centre, School of Agriculture Food and Wine, The University of Adelaide, Adelaide, Australia.
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Muhlhausler BS, Gibson RA, Makrides M. Effect of long-chain polyunsaturated fatty acid supplementation during pregnancy or lactation on infant and child body composition: a systematic review. Am J Clin Nutr 2010; 92:857-63. [PMID: 20685946 DOI: 10.3945/ajcn.2010.29495] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND n-3 (omega-3) Long-chain polyunsaturated fatty acids (LC-PUFAs) inhibit fat cell differentiation and fat storage in adults, and this has led to the hypothesis that maternal n-3 LC-PUFA supplementation may reduce fat mass in children. OBJECTIVE The objective of this systematic review was to evaluate the effect of n-3 LC-PUFA supplementation in pregnancy or lactation on infant and child body composition in randomized controlled trials. DESIGN MEDLINE and EMBASE databases were searched for relevant articles. Human trials that supplemented the maternal diet with n-3 LC-PUFAs during pregnancy or lactation and assessed either body fat mass or body mass index in children were included. Trials had to be randomized in design. The quality of all included studies was assessed against set criteria, and results of eligible trials were compared. RESULTS There were only 3 human trials (4 publications) that met our inclusion criteria. There was considerable disparity in study design and trial quality. The results were variable and showed positive, negative, or neutral effects of maternal n-3 LC-PUFA supplementation on body fat mass in children. CONCLUSIONS This systematic review highlights the paucity of robust data from human studies to evaluate the effect of increased n-3 LC-PUFA exposure during the perinatal period on body fat mass in offspring. Further studies are required in which the intervention is confined to the perinatal period and that are sufficiently powered, have appropriate controls, have adequate blinding of participants and investigators, and have high retention rates.
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Affiliation(s)
- Beverly S Muhlhausler
- School of Agriculture, Food, and Wine, The University of Adelaide, Adelaide, Australia
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Cicero AFG, D’Addato S, Fiorito A, Poli A, Gaddi AV. Plasma lipid effects of corn oil and extra-virgin olive oil in hypercholesterolaemic subjects: a randomised, controlled trial. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2009. [DOI: 10.1007/s12349-008-0028-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Use of conventional and -omics based methods for health claims of dietary antioxidants: a critical overview. Br J Nutr 2009; 99 E Suppl 1:ES3-52. [PMID: 18503734 DOI: 10.1017/s0007114508965752] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This article describes the principles and limitations of methods used to investigate reactive oxygen species (ROS) protective properties of dietary constituents and is aimed at providing a better understanding of the requirements for science based health claims of antioxidant (AO) effects of foods. A number of currently used biochemical measurements aimed of determining the total antioxidant capacity and oxidised lipids and proteins are carried out under unphysiological conditions and are prone to artefact formation. Probably the most reliable approaches are measurements of isoprostanes as a parameter of lipid peroxidation and determination of oxidative DNA damage. Also the design of the experimental models has a strong impact on the reliability of AO studies: the common strategy is the identification of AO by in vitro screening with cell lines. This approach is based on the assumption that protection towards ROS is due to scavenging, but recent findings indicate that activation of transcription factors which regulate genes involved in antioxidant defence plays a key role in the mode of action of AO. These processes are not adequately represented in cell lines. Another shortcoming of in vitro experiments is that AO are metabolised in vivo and that most cell lines are lacking enzymes which catalyse these reactions. Compounds with large molecular configurations (chlorophylls, anthocyans and polyphenolics) are potent AO in vitro, but weak or no effects were observed in animal/human studies with realistic doses as they are poorly absorbed. The development of -omics approaches will improve the scientific basis for health claims. The evaluation of results from microarray and proteomics studies shows that it is not possible to establish a general signature of alterations of transcription and protein patterns by AO. However, it was shown that alterations of gene expression and protein levels caused by experimentally induced oxidative stress and ROS related diseases can be normalised by dietary AO.
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Arranz S, Cert R, Pérez-Jiménez J, Cert A, Saura-Calixto F. Comparison between free radical scavenging capacity and oxidative stability of nut oils. Food Chem 2008; 110:985-90. [DOI: 10.1016/j.foodchem.2008.03.021] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2007] [Revised: 02/26/2008] [Accepted: 03/05/2008] [Indexed: 02/07/2023]
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Yokoyama J, Someya Y, Yoshihara R, Ishii H. Effects of high-monounsaturated fatty acid enteral formula versus high-carbohydrate enteral formula on plasma glucose concentration and insulin secretion in healthy individuals and diabetic patients. J Int Med Res 2008; 36:137-46. [PMID: 18230277 DOI: 10.1177/147323000803600117] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
We investigated the effects of high-monounsaturated fatty acid (MUFA) versus high-carbohydrate enteral formula on post-prandial plasma glucose concentration and insulin response in Japanese patients with type 2 diabetes mellitus and healthy Japanese volunteers. Ten healthy volunteers aged 20.8 +/- 1.2 years and 12 diabetic patients with good glycaemic control (glycosylated haemoglobulin < 7%) aged 58.6 +/- 7.7 years were randomly assigned to take high-MUFA or high-carbohydrate formula after a 12-h overnight fast. The patients switched to the other formula after 7 days. Post-prandial plasma glucose and insulin response were significantly lower in all subjects after taking high-MUFA formula compared with high-carbohydrate formula. No differences were observed in free fatty acids, triglycerides and plasma glucagon between the two diet groups. In conclusion, a high-MUFA enteral formula suppresses post-prandial hyperglycaemia without exaggerated insulin secretion compared with a high-carbohydrate enteral diet in patients with type 2 diabetes and healthy subjects.
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Affiliation(s)
- J Yokoyama
- Division of Diabetes and Endocrinology, Department of Internal Medicine, Jikei Daisan University Hospital, Komae City, Tokyo, Japan.
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Berger A, Jones PJH, Abumweis SS. Plant sterols: factors affecting their efficacy and safety as functional food ingredients. Lipids Health Dis 2004; 3:5. [PMID: 15070410 PMCID: PMC419367 DOI: 10.1186/1476-511x-3-5] [Citation(s) in RCA: 160] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2004] [Accepted: 04/07/2004] [Indexed: 11/10/2022] Open
Abstract
Plant sterols are naturally occurring molecules that humanity has evolved with. Herein, we have critically evaluated recent literature pertaining to the myriad of factors affecting efficacy and safety of plant sterols in free and esterified forms. We conclude that properly solubilized 4-desmetyl plant sterols, in ester or free form, in reasonable doses (0.8-1.0 g of equivalents per day) and in various vehicles including natural sources, and as part of a healthy diet and lifestyle, are important dietary components for lowering low density lipoprotein (LDL) cholesterol and maintaining good heart health. In addition to their cholesterol lowering properties, plant sterols possess anti-cancer, anti-inflammatory, anti-atherogenicity, and anti-oxidation activities, and should thus be of clinical importance, even for those individuals without elevated LDL cholesterol. The carotenoid lowering effect of plant sterols should be corrected by increasing intake of food that is rich in carotenoids. In pregnant and lactating women and children, further study is needed to verify the dose required to decrease blood cholesterol without affecting fat-soluble vitamins and carotenoid status.
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Affiliation(s)
- Alvin Berger
- Head, Biochemical Profiling, Paradigm Genetics, P.O. Box 14528, Research Triangle Park, North Carolina, 27709-4528, USA
| | - Peter JH Jones
- School of Dietetics and Human Nutrition, McGill University, 21,111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec, H9X3V9, Canada
| | - Suhad S Abumweis
- School of Dietetics and Human Nutrition, McGill University, 21,111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec, H9X3V9, Canada
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Escudero I, Martínez-González J, Alonso R, Mata P, Badimon L. Experimental and interventional dietary study in humans on the role of HDL fatty acid composition in PGI2 release and Cox-2 expression by VSMC. Eur J Clin Invest 2003; 33:779-86. [PMID: 12925037 DOI: 10.1046/j.1365-2362.2003.01221.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND High-density lipoproteins (HDLs) induce prostacyclin (PGI2) release in vascular smooth muscle cells (VSMCs) by up-regulation of cyclooxygenase-2 (Cox-2). Our goal was to analyze the role of human HDL lipid moiety on Cox-2-dependent PGI2 synthesis in human VSMCs and to assess the impact that the intake of diets with different fatty acid composition exert on HDL-induced PGI2 release. MATERIALS AND METHODS Human VSMCs were treated with HDL or fatty acids in the presence or absence of different cell signalling inhibitors and PGI2 (by enzyme immunoassay) and Cox-2 protein levels (by Western blot) were analyzed. High-density lipoproteins were obtained from a plasma pool or from plasma of 12 volunteers subjected to a longitudinal dietary interventional study of three consecutive diets periods enriched in monounsaturated fatty acids (MUFAs), polyunsaturated fatty acids n-6 (PUFA n-6) or n-3 (PUFA n-3). RESULTS High-density lipoprotein delipidation attenuated the effect of HDL on both PGI2 synthesis and Cox-2 up-regulation, while arachidonic acid (AA) but not other fatty acids mimicked the effects of HDL. Arachidonic acid induced PGI2 synthesis and Cox-2 expression through similar mechanisms to those activated by HDL [pertussis toxin-sensitive G proteins, p42/44 mitogen-activated protein kinase (MAPK), p38MAPK, and c-Jun N-terminal kinase-1 (JNK-1) pathways]. Finally, we observed that HDL from the PUFA n-3 dietary period induced lower PGI2 release than that from the PUFA n-6 period (64% vs. 100%). CONCLUSIONS Our results suggest that lipid moiety modulates HDL-induced PGI2 release/Cox-2 up-regulation in human VSMCs, and that changes in fatty acids as accomplished with the diet can modulate vascular PGI2 homeostasis.
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Affiliation(s)
- I Escudero
- Centro de Investigación Cardiovascular, CSIC/ICCC-Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
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