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Dwiputra B, Santoso A, Purwowiyoto BS, Radi B, Pandhita BAW, Fatrin S, Ambari AM. Current Evidence and Future Directions of Omega-3 Supplementation and Cardiovascular Disease Risk. Int J Angiol 2024; 33:1-7. [PMID: 38352637 PMCID: PMC10861298 DOI: 10.1055/s-0043-1777258] [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: 02/16/2024] Open
Abstract
Omega-3 supplementation has a controversial role in the secondary prevention of cardiovascular diseases. Despite large clinical trials published over the years, the evidence of omega-3 in preventing cardiovascular diseases, especially coronary heart disease, is still inconclusive. However, recent clinical trials using higher dose of omega-3 or highly purified esters of omega-3 shows promising result, with reduction in cardiovascular death and incidence of cardiovascular disease. This review aims to summarize the possible mechanism of omega-3 in preventing cardiovascular disease and future directions of research regarding the benefit of omega-3 in cardiovascular disease.
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Affiliation(s)
- Bambang Dwiputra
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Anwar Santoso
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Budhi Setianto Purwowiyoto
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Basuni Radi
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Bashar Adi Wahyu Pandhita
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Serlie Fatrin
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
| | - Ade Meidian Ambari
- Deptartment of Cardiology and Vascular Medicine, Faculty of Medicine, Universitas Indonesia - Harapan Kita National Cardiovascular Center, Jakarta, Indonesia
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Arsic A, Krstic P, Paunovic M, Nedovic J, Jakovljevic V, Vucic V. Anti-inflammatory effect of combining fish oil and evening primrose oil supplementation on breast cancer patients undergoing chemotherapy: a randomized placebo-controlled trial. Sci Rep 2023; 13:6449. [PMID: 37081029 PMCID: PMC10119093 DOI: 10.1038/s41598-023-28411-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 01/18/2023] [Indexed: 04/22/2023] Open
Abstract
Breast cancer is the most common malignant tumor and one of the leading causes of cancer-related death in women throughout the world. This study is a parallel, randomized, double-blind, controlled, 12-week supplementation trial, investigating the anti-inflammatory effects of dietary intake of fish oil and evening primrose oil (EPO), in patients with breast cancer undergoing chemotherapy. The primary outcomes were changes in the nutritional status and inflammatory cytokines of patients during the study. The secondary outcomes were changes in hematological and biochemical parameters and fatty acid profile. Of the 32 eligible patients, half of them is randomly assigned to a treatment arm with fish oil and EPO (n = 16), or a control arm (n = 16) with mineral oil as a placebo. The intervention group was taking 2 gel capsules of fish oil and 3 gel capsules of EPO (400 mg eicosapentaenoic acid, 600 mg docosahexaenoic acid, and 351 mg gamma-linolenic acid) fish oil and evening primrose oil for 12 weeks, during their chemotherapy. The control/placebo group was taking 5 gel capsules of 1g of mineral oil. One of the patients dropped out due to discontinuation of the treatment (in the placebo group) and two did not show up at the post-treatment measurements (in the intervention group), thus, 29 women completed the study. The results showed an increase in plasma levels of docosapentaenoic acid (22:5n-3), docosahexaenoic acid (22:6n-3), total n-3PUFA, vaccenic acid (18:1n-7), and a decrease in n-6/n-3 PUFA ratio in the intervention group. An increase in the plasma level of dihomo-gamma-linolenic acid (20:3n-6) was observed in the placebo group. There was no difference in plasma levels of interleukin (IL) IL-8, IL-10, and tumor necrosis factor-alpha, while the level of IL-6 decreased in both groups and was significantly lower in the intervention group at the end of the study. In conclusion, this supplementation improved the PUFA status and decreased the level of IL-6 in breast cancer patients undergoing chemotherapy. Consequently, this treatment may help reduce cancer complications resulting from impaired lipid metabolism and inflammation. ClinicalTrials.gov Identifier: NCT03516253. Date of registration 04/05/2018.
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Affiliation(s)
- Aleksandra Arsic
- Group for Nutritional Biochemistry and Dietology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia.
| | - Predrag Krstic
- Department of Hematology, Military Medical Academy, Belgrade, Serbia
| | - Marija Paunovic
- Group for Nutritional Biochemistry and Dietology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jasmina Nedovic
- Clinical Centre of Kragujevac, University of Kragujevac, Kragujevac, Serbia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Vesna Vucic
- Group for Nutritional Biochemistry and Dietology, Institute for Medical Research, National Institute of Republic of Serbia, University of Belgrade, Belgrade, Serbia
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Association of Fish and Omega-3 Fatty Acid Intake with Carotid Intima-Media Thickness in Middle-Aged to Elderly Japanese Men and Women: The Toon Health Study. Nutrients 2022; 14:nu14173644. [PMID: 36079901 PMCID: PMC9460211 DOI: 10.3390/nu14173644] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/22/2022] [Accepted: 08/31/2022] [Indexed: 12/25/2022] Open
Abstract
Fish and omega-3 fatty acid consumption is known to be beneficial for cardiometabolic health. However, the related evidence for individuals with a relatively higher intake of fish or omega-3 unsaturated fatty acids, e.g., Japanese individuals, is scarce. Therefore, this study aimed to examine the association of fish and omega-3 fatty acid intakes with the carotid intima-media thickness (C-IMT) in the Japanese population. In total, 1803 Japanese men and women aged 30–84 years without a history of myocardial infarction or angina pectoris were included in the study. The fish and omega-3 fatty acid intakes were estimated using food frequency questionnaires. The C-IMT was measured using ultrasound imaging, and the participants were classified into three groups: normal, moderate (1.1 to 1.4 mm of maximum C-IMT), and severely increased C-IMT (≥1.5 mm). Multinomial logistic regression models were used to calculate the odds ratio (OR) and 95% confidence intervals (95% CI) of the presence of moderately and severely increased C-IMT. The omega-3 fatty acid intake was shown to be associated with lower odds of severely increased C-IMT. The multivariable-adjusted OR (95%CI) was 0.55 (0.31–0.97; p for trend = 0.04). We also found a borderline significant negative association between fish intake and the presence of severely increased C-IMT. In conclusion, omega-3 fatty acid intake might protect against the development of atherosclerosis in the Japanese population.
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Effect of omega-3 fatty acid supplementation on gene expression of inflammation, oxidative stress and cardiometabolic parameters: Systematic review and meta-analysis. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104619] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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McClung JA, Levy L, Garcia V, Stec DE, Peterson SJ, Abraham NG. Heme-oxygenase and lipid mediators in obesity and associated cardiometabolic diseases: Therapeutic implications. Pharmacol Ther 2021; 231:107975. [PMID: 34499923 DOI: 10.1016/j.pharmthera.2021.107975] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/08/2021] [Accepted: 07/27/2021] [Indexed: 02/08/2023]
Abstract
Obesity-mediated metabolic syndrome remains the leading cause of death worldwide. Among many potential targets for pharmacological intervention, a promising strategy involves the heme oxygenase (HO) system, specifically its inducible form, HO-1. This review collects and updates much of the current knowledge relevant to pharmacology and clinical medicine concerning HO-1 in metabolic diseases and its effect on lipid metabolism. HO-1 has pleotropic effects that collectively reduce inflammation, while increasing vasodilation and insulin and leptin sensitivity. Recent reports indicate that HO-1 with its antioxidants via the effect of bilirubin increases formation of biologically active lipid metabolites such as epoxyeicosatrienoic acid (EET), omega-3 and other polyunsaturated fatty acids (PUFAs). Similarly, HO-1and bilirubin are potential therapeutic targets in the treatment of fat-induced liver diseases. HO-1-mediated upregulation of EET is capable not only of reversing endothelial dysfunction and hypertension, but also of reversing cardiac remodeling, a hallmark of the metabolic syndrome. This process involves browning of white fat tissue (i.e. formation of healthy adipocytes) and reduced lipotoxicity, which otherwise will be toxic to the heart. More importantly, this review examines the activity of EET in biological systems and a series of pathways that explain its mechanism of action and discusses how these might be exploited for potential therapeutic use. We also discuss the link between cardiac ectopic fat deposition and cardiac function in humans, which is similar to that described in obese mice and is regulated by HO-1-EET-PGC1α signaling, a potent negative regulator of the inflammatory adipokine NOV.
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Affiliation(s)
- John A McClung
- Department of Medicine, New York Medical College, Valhalla, NY 10595, United States of America
| | - Lior Levy
- Department of Medicine, New York Medical College, Valhalla, NY 10595, United States of America
| | - Victor Garcia
- Department of Pharmacology, New York Medical College, Valhalla, NY 10595, United States of America
| | - David E Stec
- Department of Physiology and Biophysics, Cardiorenal and Metabolic Diseases Research Center, University of Mississippi Medical Center, Jackson, MS 39216, United States of America.
| | - Stephen J Peterson
- Department of Medicine, Weill Cornell Medicine, New York, NY 10065, United States of America; New York Presbyterian Brooklyn Methodist Hospital, Brooklyn, NY 11215, United States of America
| | - Nader G Abraham
- Department of Medicine, New York Medical College, Valhalla, NY 10595, United States of America; Department of Pharmacology, New York Medical College, Valhalla, NY 10595, United States of America.
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Eicosapentaenoic Acid Regulates Inflammatory Pathways through Modulation of Transcripts and miRNA in Adipose Tissue of Obese Mice. Biomolecules 2020; 10:biom10091292. [PMID: 32906847 PMCID: PMC7564513 DOI: 10.3390/biom10091292] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 08/31/2020] [Accepted: 09/01/2020] [Indexed: 12/19/2022] Open
Abstract
This study aims to investigate the global profiling of genes and miRNAs expression to explore the regulatory effects of eicosapentaenoic acid (EPA) in visceral adipose tissue (VAT) of obese mice. We used male mice, fed either a high-fat diet (HF) or HF supplemented with EPA (HF-EPA), for 11 weeks. RNA, and small RNA profiling, were performed by RNAseq analysis. We conducted analyses using Ingenuity Pathway Analysis software (IPA®) and validated candidate genes and miRNAs related to lipid mediators and inflammatory pathways using qRT-PCR. We identified 153 genes differentially downregulated, and 62 microRNAs differentially expressed in VAT from HF-EPA compared to HF. Genes with a positive association with inflammation, chemotaxis, insulin resistance, and inflammatory cell death, such as Irf5, Alox5ap, Tlrs, Cd84, Ccr5, Ccl9, and Casp1, were downregulated by EPA. Moreover, EPA significantly reduced LTB4 levels, a lipid mediator with a central role in inflammation and insulin resistance in obesity. The pathways and mRNA/microRNA interactions identified in our study corroborated with data validated for inflammatory genes and miRNAs. Together, our results identified key VAT inflammatory targets and pathways, which are regulated by EPA. These targets merit further investigation to better understand the protective mechanisms of EPA in obesity-associated inflammation.
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Masmeijer C, van Leenen K, De Cremer L, Deprez P, Cox E, Devriendt B, Pardon B. Effects of omega-3 fatty acids on immune, health and growth variables in veal calves. Prev Vet Med 2020; 179:104979. [PMID: 32388034 DOI: 10.1016/j.prevetmed.2020.104979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 03/17/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
Under the present intensive rearing conditions, calves face a series of stressors and multiple pathogens often necessitating antimicrobial use. Multiple feed additives are currently explored for their ability to prevent disease and limit the use of antimicrobials. Supplementation of the polyunsaturated long chain n-3 fatty acids eicosapentaenoic (EPA) and docohexaenoic (DHA) from marine origin has been proposed as a strategy to improve immune function and prevent excessive inflammation reactions. The aim of this randomized clinical trial was to explore the effects of n-3 fatty acids (PUFAs) used as feed supplement on health, production and immune variables in a veal calf setting. One hundred-seventy calves were randomly assigned to 3 treatment groups: microalgae (MA, n = 57, 2.5 g DHA/animal/day), fish oil (FO, n = 57, 2.5 g EPA + DHA/animal/day)] and a control group (CON, n = 56). Average daily gain (ADG), bodyweight at 12 weeks on feed and slaughter weight were determined. Health monitoring consisted of recording of clinical signs and repeated thoracic ultrasonography. After 5, 8 and 11 weeks of supplementation, the function of neutrophils, monocytes and peripheral blood mononuclear cells (PBMCs) was evaluated ex vivo by measuring reactive oxygen species (ROS) production by neutrophils and monocytes and proliferation of and cytokine release by PBMCs. Under the field conditions of this study, dietary supplementation of MA and FO showed very limited immunomodulatory effects. Feeding MA led to increased ROS production by neutrophils, Estimate (E) = 0.38, Standard Error (SE) = 0.14; P < 0.05, compared to the control calves after 5 weeks of in-feed supplementation. FO reduced IL-6 secretion E= -0.29, SE= 0.11; P < 0.05 compared to MA treated animals after 11 weeks on feed. Health and production variables were unaffected by treatments. The doses of EPA and DHA used in this study did not cause immunomodulatory changes in highly stressed calves to such an extent that this led to better health or growth of animals.
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Affiliation(s)
- Christien Masmeijer
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium; Proviron Industries NV, Georges Gilliotstraat 60, Hemiksem, 2620, Belgium.
| | - Katharina van Leenen
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
| | - Lieze De Cremer
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
| | - Piet Deprez
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
| | - Eric Cox
- Laboratory of Immunology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
| | - Bert Devriendt
- Laboratory of Immunology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
| | - Bart Pardon
- Department of Large Animal Internal Medicine, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, Merelbeke, 9820, Belgium
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Lian Z, Perrard XYD, Peng X, Raya JL, Hernandez AA, Johnson CG, Lagor WR, Pownall HJ, Hoogeveen RC, Simon SI, Sacks FM, Ballantyne CM, Wu H. Replacing Saturated Fat With Unsaturated Fat in Western Diet Reduces Foamy Monocytes and Atherosclerosis in Male Ldlr-/- Mice. Arterioscler Thromb Vasc Biol 2020; 40:72-85. [PMID: 31619061 PMCID: PMC6991890 DOI: 10.1161/atvbaha.119.313078] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE A Mediterranean diet supplemented with olive oil and nuts prevents cardiovascular disease in clinical studies, but the underlying mechanisms are incompletely understood. We investigated whether the preventive effect of the diet could be due to inhibition of atherosclerosis and foamy monocyte formation in Ldlr-/- mice fed with a diet in which milkfat in a Western diet (WD) was replaced with extra-virgin olive oil and nuts (EVOND). Approach and Results: Ldlr-/- mice were fed EVOND or a Western diet for 3 (or 6) months. Compared with the Western diet, EVOND decreased triglyceride and cholesterol levels but increased unsaturated fatty acid concentrations in plasma. EVOND also lowered intracellular lipid accumulation in circulating monocytes, indicating less formation of foamy monocytes, compared with the Western diet. In addition, compared with the Western diet, EVOND reduced monocyte expression of inflammatory cytokines, CD36, and CD11c, with decreased monocyte uptake of oxLDL (oxidized LDL [low-density lipoprotein]) ex vivo and reduced CD11c+ foamy monocyte firm arrest on vascular cell adhesion molecule-1 and E-selectin-coated slides in an ex vivo shear flow assay. Along with these changes, EVOND compared with the Western diet reduced the number of CD11c+ macrophages in atherosclerotic lesions and lowered atherosclerotic lesion area of the whole aorta and aortic sinus. CONCLUSIONS A diet enriched in extra-virgin olive oil and nuts, compared with a Western diet high in saturated fat, lowered plasma cholesterol and triglyceride levels, inhibited foamy monocyte formation, inflammation, and adhesion, and reduced atherosclerosis in Ldlr-/- mice.
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Affiliation(s)
- Zeqin Lian
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
| | - Xiao-Yuan Dai Perrard
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
| | - Xueying Peng
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
- State Key Laboratory for Bioactive Substances and Functions of Natural Medicines, Beijing Key Laboratory of New Drug Mechanisms and Pharmacological Evaluation Study, Institute of Materia Medica, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (X.P)
| | - Joe L Raya
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
| | - Alfredo A Hernandez
- Department of Biomedical Engineering, University of California, Davis (A.A.H, S.I.S.)
| | - Collin G Johnson
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
| | - William R Lagor
- Department of Molecular Physiology and Biophysics (W.R.L.), Baylor College of Medicine, Houston, TX
| | - Henry J Pownall
- Center for Bioenergetics, Houston Methodist Research Institute, Houston, TX (H.J.P.)
| | - Ron C Hoogeveen
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
| | - Scott I Simon
- Department of Biomedical Engineering, University of California, Davis (A.A.H, S.I.S.)
| | - Frank M Sacks
- Department of Nutrition, Harvard School of Public Health, and Department of Medicine, Harvard Medical School and Brigham and Women's Hospital, Boston, MA (F.M.S.)
| | - Christie M Ballantyne
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
- Department of Pediatrics (C.M.B., H.W.), Baylor College of Medicine, Houston, TX
- Center for Cardiometabolic Disease Prevention (C.M.B.), Baylor College of Medicine, Houston, TX
| | - Huaizhu Wu
- From the Department of Medicine (Z.L., X.D.P., X.P., J.L.R., C.G.J., R.C.H., C.M.B., H.W.), Baylor College of Medicine, Houston, TX
- Department of Pediatrics (C.M.B., H.W.), Baylor College of Medicine, Houston, TX
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Effects of fish and krill oil on gene expression in peripheral blood mononuclear cells and circulating markers of inflammation: a randomised controlled trial. J Nutr Sci 2018; 7:e10. [PMID: 29599972 PMCID: PMC5869279 DOI: 10.1017/jns.2018.2] [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: 01/10/2016] [Accepted: 01/23/2018] [Indexed: 12/14/2022] Open
Abstract
Marine n-3 (omega-3) fatty acids alter gene expression by regulating the activity of transcription factors. Krill oil is a source of marine n-3 fatty acids that has been shown to modulate gene expression in animal studies; however, the effect in humans is not known. Hence, we aimed to compare the effect of intake of krill oil, lean and fatty fish with a similar content of n-3 fatty acids, and high-oleic sunflower oil (HOSO) with added astaxanthin on the expression of genes involved in glucose and lipid metabolism and inflammation in peripheral blood mononuclear cells (PBMC) as well as circulating inflammatory markers. In an 8-week trial, healthy men and women aged 18–70 years with fasting TAG of 1·3–4·0 mmol/l were randomised to receive krill oil capsules (n 12), HOSO capsules (n 12) or lean and fatty fish (n 12). The weekly intakes of marine n-3 fatty acids from the interventions were 4654, 0 and 4103 mg, respectively. The mRNA expression of four genes, PPAR γ coactivator 1A (PPARGC1A), steaoryl-CoA desaturase (SCD), ATP binding cassette A1 (ABCA1) and cluster of differentiation 40 (CD40), were differently altered by the interventions. Furthermore, within-group analyses revealed that krill oil down-regulated the mRNA expression of thirteen genes, including genes involved in glucose and cholesterol metabolism and β-oxidation. Fish altered the mRNA expression of four genes and HOSO down-regulated sixteen genes, including several inflammation-related genes. There were no differences between the groups in circulating inflammatory markers after the intervention. In conclusion, the intake of krill oil and HOSO with added astaxanthin alter the PBMC mRNA expression of more genes than the intake of fish.
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Key Words
- ABCA1, ATP binding cassette A1
- ACADVL, acyl-CoA dehydrogenase, very long chain
- CD40, cluster of differentiation 40
- CPT, carnitine palmitoyltransferase
- Ct, cycle threshold
- Fish
- Gene expression
- Glucose
- HMGCR, 3-hyroxy-3-methylglutaryl-coenzyme A reductase
- HMGCS, 3-hydroxy-3-methylglutaryl-coA synthase
- HOSO, high-oleic sunflower oil
- ICAM-1, intracellular adhesion molecule-1
- Krill oil
- Marine n-3 fatty acids
- PBMC, peripheral blood mononuclear cells
- PPARGC1A, PPAR γ coactivator 1A
- Peripheral blood mononuclear cells
- SCD, steaoryl-CoA desaturase
- SLC25A12, solute carrier family 25 member 12
- SREBP-1c, sterol-regulating element binding protein 1c
- UCP2, uncoupling protein 2
- VCAM-1, vascular cell adhesion molecule-1
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Monastero RN, Karimi R, Nyland JF, Harrington J, Levine K, Meliker JR. Mercury exposure, serum antinuclear antibodies, and serum cytokine levels in the Long Island Study of Seafood Consumption: A cross-sectional study in NY, USA. ENVIRONMENTAL RESEARCH 2017; 156:334-340. [PMID: 28390301 DOI: 10.1016/j.envres.2017.03.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/23/2017] [Accepted: 03/25/2017] [Indexed: 06/07/2023]
Abstract
Mercury (Hg) is a well-known neurotoxin, and has been more recently studied specifically as an immunotoxin. In experimental and a few epidemiologic studies, Hg has been associated with distinct cytokine profiles and antinuclear antibody (ANA) positivity, though patterns at lower levels of exposure, typical of seafood consumers with a western diet, are not well characterized. Seafood consumers (n=287) recruited on Long Island, NY completed food frequency and health questionnaires and provided blood for analysis of Hg, poly-unsaturated fatty acids (omega-3 and omega-6 fatty acids), selenium (Se), ANA, and several cytokines (IL-1β, IL-4, IL-10, TNF-α, IL-17, IFN-γ, and IL-1ra). Logistic and linear regression analyses were conducted to evaluate associations between serum Hg and cytokines and ANA. Adjusted models accounted for gender, age, ethnicity, income, education, smoking, BMI, selenium, omega-3 fatty acids, omega-6 fatty acids, omega-6/omega-3 ratio, and fish intake. Sex-stratified models were also generated with the expectation that immune profiles would differ between women and men. Median blood Hg was 4.58µg/L with 90th %ile =19.8µg/L. Nine individuals displayed ANA positivity at serum titers above 1:80; many of the cytokines were below detection limits, and the ability to detect was used in the logistic regression analyses. In linear and logistic regression analyses, Hg was not significantly associated with any of the seven investigated cytokines or with ANA-positivity. Therefore, Hg was not associated with altered immune profiles in this population of seafood consumers.
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Affiliation(s)
- Rebecca N Monastero
- Undergraduate Studies, Stony Brook University, Stony Brook, NY 11794-8338, United States of America; Stony Brook University, Stony Brook, NY 11794-8338, United States of America.
| | - Roxanne Karimi
- Stony Brook University, Stony Brook, NY 11794-8338, United States of America; School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, NY 11794-5000, United States of America; Consortium for Inter-Disciplinary Environmental Research, Stony Brook University, Stony Brook, NY 11794-5000, United States of America.
| | - Jennifer F Nyland
- Salisbury University Department of Biological Sciences, Henson Science Hall, 232, Salisbury, MD 21801, United States of America.
| | - James Harrington
- RTI International, Trace Inorganics Laboratory, RTP, NC 27709, United States of America.
| | - Keith Levine
- RTI International, Trace Inorganics Laboratory, RTP, NC 27709, United States of America.
| | - Jaymie R Meliker
- Stony Brook University, Stony Brook, NY 11794-8338, United States of America; Consortium for Inter-Disciplinary Environmental Research, Stony Brook University, Stony Brook, NY 11794-5000, United States of America; Program in Public Health, Stony Brook University, Stony Brook, NY 11794-8338, United States of America; Department of Family, Population, and Preventive Medicine, Stony Brook University, Stony Brook, NY 11794-8338, United States of America.
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Bosviel R, Joumard-Cubizolles L, Chinetti-Gbaguidi G, Bayle D, Copin C, Hennuyer N, Duplan I, Staels B, Zanoni G, Porta A, Balas L, Galano JM, Oger C, Mazur A, Durand T, Gladine C. DHA-derived oxylipins, neuroprostanes and protectins, differentially and dose-dependently modulate the inflammatory response in human macrophages: Putative mechanisms through PPAR activation. Free Radic Biol Med 2017; 103:146-154. [PMID: 27988338 DOI: 10.1016/j.freeradbiomed.2016.12.018] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 11/29/2016] [Accepted: 12/13/2016] [Indexed: 01/15/2023]
Abstract
Whereas the anti-inflammatory properties and mechanisms of action of long chain ω3 PUFAs have been abundantly investigated, research gaps remain regarding the respective contribution and mechanisms of action of their oxygenated metabolites collectively known as oxylipins. We conducted a dose-dependent and comparative study in human primary macrophages aiming to compare the anti-inflammatory activity of two types of DHA-derived oxylipins including the well-described protectins (NPD1 and PDX), formed through lipoxygenase pathway and the neuroprostanes (14-A4t- and 4-F4t-NeuroP) formed through free-radical mediated oxygenation and expected to be new anti-inflammatory mediators. Considering the potential ability of these DHA-derived oxylipins to bind PPARs and knowing the central role of these transcription factors in the regulation of macrophage inflammatory response, we performed transactivation assays to compare the ability of protectins and neuroprostanes to activate PPARs. All molecules significantly reduced mRNA levels of cytokines such as IL-6 and TNF-α, however not at the same doses. NPD1 showed the most effect at 0.1µM (-14.9%, p<0.05 for IL-6 and -26.7%, p<0.05 for TNF-α) while the three other molecules had greater effects at 10µM, with the strongest result due to the cyclopentenone neuroprostane, 14-A4t-NeuroP (-49.8%, p<0.001 and -40.8%, p<0.001, respectively). Part of the anti-inflammatory properties of the DHA-derived oxylipins investigated could be linked to their activation of PPARs. Indeed, all tested oxylipins significantly activated PPARγ, with 14-A4t-NeuroP leading to the strongest activation, and NPD1 and PDX also activated PPARα. In conclusion, our results show that neuroprostanes and more especially cyclopentenone neuroprostanes have potent anti-inflammatory activities similar or even more pronounced than protectins supporting that neuroprostanes should be considered as important contributors to the anti-inflammatory effects of DHA.
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Affiliation(s)
- Rémy Bosviel
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, France; Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Laurie Joumard-Cubizolles
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, France; Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Giulia Chinetti-Gbaguidi
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011, EGID, F-59000 Lille, France; University of Côte d'Azur, CHU, Inserm, CNRS, IRCAN, France.
| | - Dominique Bayle
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, France; Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
| | - Corinne Copin
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011, EGID, F-59000 Lille, France.
| | - Nathalie Hennuyer
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011, EGID, F-59000 Lille, France.
| | - Isabelle Duplan
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011, EGID, F-59000 Lille, France.
| | - Bart Staels
- Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, U1011, EGID, F-59000 Lille, France.
| | | | | | | | | | - Camille Oger
- IBMM, UMR 5247 CNRS/UM/ENSCM, Montpellier, France.
| | - Andrzej Mazur
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, France; Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
| | | | - Cécile Gladine
- INRA, UMR 1019, UNH, CRNH Auvergne, F-63000 Clermont-Ferrand, France; Clermont Université, Université d'Auvergne, Unité de Nutrition Humaine, BP 10448, F-63000 Clermont-Ferrand, France.
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Estevão-Silva CF, Ames FQ, Silva-Comar FMDS, Kummer R, Tronco RP, Cuman RKN, Bersani-Amado CA. Fish Oil and Adjuvant-Induced Arthritis: Inhibitory Effect on Leukocyte Recruitment. Inflammation 2016; 39:320-326. [PMID: 26378008 DOI: 10.1007/s10753-015-0252-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Fish oil, a rich source of n-3 fatty acids, has been studied for its beneficial effects in many diseases. Recent studies have shown the robust anti-inflammatory activity of fish oil (FO), when administered orally to rats, in models of acute inflammation. Herein, we investigated if treatment with fish oil preparation (FOP) could interfere with the recruitment of leukocytes into the joint cavity of arthritic rats. We also evaluated the effect of treatment on rolling behavior and leukocyte adhesion in vivo and on leukocyte chemotaxis in vitro. Treatment with FOP (75, 150, and 300 mg/kg) initiated on the day of induction of arthritis (day 0) and maintained for 21 days reduced the total number of leukocytes recruited into the joint cavity, the number of rolling and adhered leukocytes in arthritic rats, and leukocyte migration in response to stimulation with N-formyl-methionyl-leucyl-phenylalanine (fMLP) and leukotriene B4 (LTB4). Together, our data provide evidence that FOP plays an important inhibitory role in the recruitment of leukocytes into the joint cavity of arthritic rats.
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Affiliation(s)
| | - Franciele Queiroz Ames
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, PR, Brazil
| | | | - Raquel Kummer
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, PR, Brazil
| | - Rafael Prizon Tronco
- Department of Pharmacology and Therapeutics, State University of Maringá, Maringá, PR, Brazil
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Cardioprotective effect of resveratrol analogue isorhapontigenin versus omega-3 fatty acids in isoproterenol-induced myocardial infarction in rats. J Physiol Biochem 2016; 72:469-84. [DOI: 10.1007/s13105-016-0494-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 05/12/2016] [Indexed: 10/21/2022]
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Allam-Ndoul B, Guénard F, Barbier O, Vohl MC. Effect of n-3 fatty acids on the expression of inflammatory genes in THP-1 macrophages. Lipids Health Dis 2016; 15:69. [PMID: 27044314 PMCID: PMC4820929 DOI: 10.1186/s12944-016-0241-4] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 03/30/2016] [Indexed: 01/01/2023] Open
Abstract
Background Uncontrolled inflammation participates in the development of inflammatory diseases. Beneficial effects of polyunsaturated fatty acids belonging to the n-3 family such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on inflammation have been reported. The present study investigates the basal effects of EPA, DHA and a mixture EPA + DHA on the expression of 10 genes (AKT1, MAPK, NFKB, TNFA, IL1Β, MCP1, ALOX5, PTGS2, MGST1and NOS2) related to inflammation in unstimulated cultured THP1 macrophages. Cells were incubated for 24 h with n-3 PUFAs (50 μM and 10 μM EPA, DHA, EPA + DHA). Expression levels of inflammatory genes were analyzed by real-time PCR. Results 50 μM, 10 μM EPA and 50 μM EPA + DHA decreased the expression of genes involved in the NF-κB pathway (MAPK, AKT1, and NFKB). Treatment with 50 μM, 10 μM EPA, 50 μM DHA and EPA + DHA decreased expression levels of cytokines genes IL1Β and MCP1. TNFA expression was decreased by 50 μM, 10 μM of EPA, DHA and with 50 μM EPA + DHA. Two genes involved in the fatty acid metabolism (PTGS2 and ALOX5) were also modulated by the n-3 FAs. 50 μM of DHA and EPA + DHA inhibited PTGS2 expression when the two concentrations of EPA, 50 μM DHA and EPA + DHA inhibited ALOX5 expression. Finally, the effects of n-3 FAs were studied among genes involved in the oxidative stress. 50 μM of each fatty acid increased MGST1 expression. Both concentration of EPA and 50 μM DHA decreased NOS2 expression. Conclusion EPA seems to be more effective than DHA and EPA + DHA in modulating expression levels of selected inflammatory genes. The concentration of 50 μM was globally more effective than 10 μM.
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Affiliation(s)
- Bénédicte Allam-Ndoul
- Institute of Nutrition and Functional Foods (INAF), Laval University, Pavillon des Services, 2440 Hochelaga Blvd, Québec, Québec, G1V 0A6, Canada
| | - Frédéric Guénard
- Institute of Nutrition and Functional Foods (INAF), Laval University, Pavillon des Services, 2440 Hochelaga Blvd, Québec, Québec, G1V 0A6, Canada
| | - Olivier Barbier
- Laboratory of Molecular Pharmacology, CHU de Quebec Research Center, 2705, boulevard Laurier R-4720, Québec, Québec, G1V 4G2, Canada
| | - Marie-Claude Vohl
- Institute of Nutrition and Functional Foods (INAF), Laval University, Pavillon des Services, 2440 Hochelaga Blvd, Québec, Québec, G1V 0A6, Canada.
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15
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Impact of DHA on metabolic diseases from womb to tomb. Mar Drugs 2014; 12:6190-212. [PMID: 25528960 PMCID: PMC4278225 DOI: 10.3390/md12126190] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/25/2014] [Accepted: 12/11/2014] [Indexed: 12/19/2022] Open
Abstract
Long chain polyunsaturated fatty acids (LC-PUFAs) are important mediators in improving and maintaining human health over the total lifespan. One topic we especially focus on in this review is omega-3 LC-PUFA docosahexaenoic acid (DHA). Adequate DHA levels are essential during neurodevelopment and, in addition, beneficial in cognitive processes throughout life. We review the impact of DHA on societal relevant metabolic diseases such as cardiovascular diseases, obesity, and diabetes mellitus type 2 (T2DM). All of these are risk factors for cognitive decline and dementia in later life. DHA supplementation is associated with a reduced incidence of both stroke and atherosclerosis, lower bodyweight and decreased T2DM prevalence. These findings are discussed in the light of different stages in the human life cycle: childhood, adolescence, adulthood and in later life. From this review, it can be concluded that DHA supplementation is able to inhibit pathologies like obesity and cardiovascular disease. DHA could be a dietary protector against these metabolic diseases during a person’s entire lifespan. However, supplementation of DHA in combination with other dietary factors is also effective. The efficacy of DHA depends on its dose as well as on the duration of supplementation, sex, and age.
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16
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Palomino-Morales R, Alejandre MJ, Perales S, Torres C, Linares A. Effect of PUFAs on extracellular matrix production and remodeling in vascular smooth muscle cell cultures in an atherosclerotic model. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201400141] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rogelio Palomino-Morales
- Faculty of Sciences, Department of Biochemistry and Molecular Biology I; Campus Universitario de Fuentenueva, University of Granada; Granada Spain
| | - M. Jose Alejandre
- Faculty of Sciences, Department of Biochemistry and Molecular Biology I; Campus Universitario de Fuentenueva, University of Granada; Granada Spain
| | - Sonia Perales
- Faculty of Sciences, Department of Biochemistry and Molecular Biology I; Campus Universitario de Fuentenueva, University of Granada; Granada Spain
| | - Carolina Torres
- Faculty of Sciences, Department of Biochemistry and Molecular Biology I; Campus Universitario de Fuentenueva, University of Granada; Granada Spain
| | - Ana Linares
- Faculty of Sciences, Department of Biochemistry and Molecular Biology I; Campus Universitario de Fuentenueva, University of Granada; Granada Spain
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17
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Afman L, Milenkovic D, Roche HM. Nutritional aspects of metabolic inflammation in relation to health--insights from transcriptomic biomarkers in PBMC of fatty acids and polyphenols. Mol Nutr Food Res 2014; 58:1708-20. [PMID: 24449395 DOI: 10.1002/mnfr.201300559] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 11/27/2013] [Accepted: 12/03/2013] [Indexed: 11/08/2022]
Abstract
Recent research has highlighted potential important interaction between metabolism and inflammation, within the context of metabolic health and nutrition, with a view to preventing diet-related disease. In addition to this, there is a paucity of evidence in relation to accurate biomarkers that are capable of reflecting this important biological interplay or relationship between metabolism and inflammation, particularly in relation to diet and health. Therefore the objective of this review is to highlight the potential role of transcriptomic approaches as a tool to capture the mechanistic basis of metabolic inflammation. Within this context, this review has focused on the potential of peripheral blood mononuclear cells transcriptomic biomarkers, because they are an accessible tissue that may reflect metabolism and subacute chronic inflammation. Also these pathways are often dysregulated in the common diet-related diseases obesity, type 2 diabetes, and cardiovascular disease, thus may be used as markers of systemic health. The review focuses on fatty acids and polyphenols, two classes of nutrients/nonnutrient food components that modulate metabolism/inflammation, which we have used as an example of a proof-of-concept with a view to understanding the extent to which transcriptomic biomarkers are related to nutritional status and/or sensitive to dietary interventions. We show that both nutritional components modulate inflammatory markers at the transcriptomic level with the capability of profiling pro- and anti-inflammatory mechanisms in a bidirectional fashion; to this end transcriptomic biomarkers may have potential within the context of metabolic inflammation. This transcriptomic biomarker approach may be a sensitive indicator of nutritional status and metabolic health.
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Affiliation(s)
- Lydia Afman
- Nutrition, Metabolism and Genomics Group, Division of Human Nutrition, Wageningen University, The Netherlands
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18
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Ulven SM, Myhrstad MC, Holven KB. Marine n-3 Fatty Acids and Gene Expression in Peripheral Blood Mononuclear Cells. CURRENT CARDIOVASCULAR RISK REPORTS 2014; 8:412. [PMID: 25285180 PMCID: PMC4176948 DOI: 10.1007/s12170-014-0412-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Intake of marine n-3 fatty acids has been shown to have beneficial effects on cardiovascular disease. Gene expression analyses in peripheral blood mononuclear cells (PBMCs) are used to understand the underlying mechanisms of action of marine n-3 fatty acids. The aim of this review was to summarize the effects mediated by marine n-3 fatty acids on gene expression in PBMCs. A systematic literature search was conducted in PubMed in May 2014 and 14 papers were included. Targeted gene expression studies were reported in 9 papers and focused on genes involved in lipid metabolism and inflammation. Whole genome transcriptome analyses were conducted in 5 papers, and processes and pathways related to atherosclerotic plaque formation such as inflammation, oxidative stress response, cell cycle, cell adhesion, and apoptosis were modulated after fish oil supplementation. PBMC gene expression profiling has a potential to clarify further the molecular effects of fish oil consumption on human health.
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Affiliation(s)
- Stine M. Ulven
- Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences (HiOA), P.O. Box 4, St Olavs plass, 0130 Oslo, Norway
| | - Mari C. Myhrstad
- Department of Health, Nutrition and Management, Faculty of Health Sciences, Oslo and Akershus University College of Applied Sciences (HiOA), P.O. Box 4, St Olavs plass, 0130 Oslo, Norway
| | - Kirsten B. Holven
- Department of Nutrition, Institute for Basic Medical Sciences, University of Oslo, P.O. Box 1046, Blindern, 0317 Oslo, Norway
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19
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Dawson DR, Branch-Mays G, Gonzalez OA, Ebersole JL. Dietary modulation of the inflammatory cascade. Periodontol 2000 2013; 64:161-97. [DOI: 10.1111/j.1600-0757.2012.00458.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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20
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Toyama K, Nishioka T, Isshiki A, Ando T, Inoue Y, Kirimura M, Kamiyama T, Sasaki O, Ito H, Maruyama Y, Yoshimoto N. Eicosapentaenoic Acid Combined with Optimal Statin Therapy Improves Endothelial Dysfunction in Patients with Coronary Artery Disease. Cardiovasc Drugs Ther 2013; 28:53-9. [DOI: 10.1007/s10557-013-6496-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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21
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Flock MR, Harris WS, Kris-Etherton PM. Long-chain omega-3 fatty acids: time to establish a dietary reference intake. Nutr Rev 2013; 71:692-707. [PMID: 24117792 DOI: 10.1111/nure.12071] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The beneficial effects of consuming omega-3 polyunsaturated fatty acids (n-3 PUFAs), specifically eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), on cardiovascular health have been studied extensively. To date, there is no dietary reference intake (DRI) for EPA and DHA, although many international authorities and expert groups have issued dietary recommendations for them. Given the substantial new evidence published since the last Institute of Medicine (IOM) report on energy and macronutrients, released in 2002, there is a pressing need to establish a DRI for EPA and DHA. In order to set a DRI, however, more information is needed to define the intakes of EPA and DHA required to reduce the burden of chronic disease. Information about potential gender- or race-based differences in requirements is also needed. Given the many health benefits of EPA and DHA that have been described since the 2002 IOM report, there is now a strong justification for establishing a DRI for these fatty acids.
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Affiliation(s)
- Michael R Flock
- Department of Nutritional Sciences, The Pennsylvania State University, University Park, PA, USA
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22
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Endocannabinoid system as a potential mechanism for n-3 long-chain polyunsaturated fatty acid mediated cardiovascular protection. Proc Nutr Soc 2013; 72:460-9. [PMID: 24020800 DOI: 10.1017/s0029665113003406] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The presence of an active and functioning endocannabinoid (EC) system within cardiovascular tissues implies that this system has either a physiological or pathophysiological role (or both), and there is a substantial literature to support the notion that, in the main, they are protective in the setting of various CVD states. Moreover, there is an equally extensive literature to demonstrate the cardio- and vasculo-protective effects of n-3 long-chain (LC)-PUFA. It is now becoming evident that there appears to be a close relationship between dietary intervention with n-3 LC-PUFA and changes in tissue levels of EC, raising the question as to whether or not EC may, at least in part, play a role in mediating the cardio-and vasculo-protective effects of n-3 LC-PUFA. This brief review summarises the current understanding of how both EC and n-3 LC-PUFA exert their protective effects in three major cardiovascular disorders (hypertension, atherosclerosis and acute myocardial infarction) and attempts to identify the similarities and differences that may indicate common or integrated mechanisms. From the data available, it is unlikely that in hypertension EC mediate any beneficial effects of n-3 LC-PUFA, since they do not share common mechanisms of blood pressure reduction. However, inhibition of inflammation is an effect shared by EC and n-3 LC-PUFA in the setting of both atherosclerosis and myocardial reperfusion injury, while blockade of L-type Ca2+ channels is one of the possible common mechanisms for their antiarrhythmic effects. Although both EC and n-3 LC-PUFA demonstrate vasculo- and cardio-protection, the literature overwhelmingly shows that n-3 LC-PUFA decrease tissue levels of EC through formation of EC–n-3 LC-PUFA conjugates, which is counter-intuitive to an argument that EC may mediate the effects of n-3 LC-PUFA. However, the discovery that these conjugates have a greater affinity for cannabinoid receptors than the native EC provides a fascinating avenue for further research into novel approaches for the treatment and prevention of atherosclerosis and myocardial injury following ischaemia/reperfusion.
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23
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Role of omega-3 fatty acids in obesity, metabolic syndrome, and cardiovascular diseases: a review of the evidence. J Physiol Biochem 2013; 69:633-51. [DOI: 10.1007/s13105-013-0265-4] [Citation(s) in RCA: 277] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 04/17/2013] [Indexed: 01/17/2023]
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Arshad A, Chung WY, Steward W, Metcalfe MS, Dennison AR. Reduction in circulating pro-angiogenic and pro-inflammatory factors is related to improved outcomes in patients with advanced pancreatic cancer treated with gemcitabine and intravenous omega-3 fish oil. HPB (Oxford) 2013; 15:428-32. [PMID: 23458624 PMCID: PMC3664046 DOI: 10.1111/hpb.12002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2012] [Accepted: 10/02/2012] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pancreatic cancer is a rapidly progressive disease which is often only amenable to palliative treatment. Few patients respond to palliative chemotherapy, so surrogate markers indicating which patients are likely to respond to treatment are required. There is a well-established link between pro-inflammatory circulating cytokines and growth factors (CAF), and the development of neoplasia. Agents that may modulate these factors are of interest in developing potential novel therapeutic applications. METHODS As part of a single-arm phase II trial in patients with advanced pancreatic cancer (APC) treated with gemcitabine and intravenous (i.v.) omega-3 rich lipid emulsion (n-3FA), serum samples were analysed for 14 CAF using a multiplex cytokine array. Baseline serum concentrations were correlated with overall (OS) and progression-free survival (PFS), and changes in concentration correlated with time and outcomes for CAF responders were analysed. RESULTS Platelet-derived growth factor (PDGF) and fibroblast growth factor (FGF) concentrations reduced significantly with treatment over time. Low baseline interleukin (IL)-6 and -8 were correlated with improved OS. PDGF responders showed a tendency towards improved OS and FGF responders a significantly improved PFS. DISCUSSION Treatment with gemcitabine plus i.v. n-3FA may reduce concentrations of CAF which may be associated with an improved outcome. Baseline IL-6 and -8 may be surrogate markers for outcome in patients with APC treated with this regimen.
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Affiliation(s)
- Ali Arshad
- Department of Hepatobiliary and Department of Pancreatic Surgery, University Hospitals of LeicesterLeicester, UK,Correspondence Ali Arshad, Department of Hepatobiliary and Pancreatic Surgery, Leicester General Hospital, Gwendolen Road, Leicester, LE5 4PW, UK. Tel: +44 116 258 8110. Fax: +44 116 258 4708. E-mail:
| | - Wen Y Chung
- Department of Hepatobiliary and Department of Pancreatic Surgery, University Hospitals of LeicesterLeicester, UK
| | - William Steward
- Department of Medical Oncology, University Hospitals of LeicesterLeicester, UK
| | - Matthew S Metcalfe
- Department of Hepatobiliary and Department of Pancreatic Surgery, University Hospitals of LeicesterLeicester, UK
| | - Ashley R Dennison
- Department of Hepatobiliary and Department of Pancreatic Surgery, University Hospitals of LeicesterLeicester, UK
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Abstract
Numerous effects of n-3 fatty acids EPA and DHA on functional responses of cells involved in inflammation and immunity have been described. Fatty acid-induced modifications in membrane order and in the availability of substrates for eicosanoid synthesis are long-standing mechanisms that are considered important in explaining the effects observed. More recently, effects on signal transduction pathways and on gene expression profiles have been identified. Over the last 10 years or so, significant advances in understanding the mechanisms of action of n-3 fatty acids have been made. These include the identification of new actions of lipid mediators that were already described and of novel interactions among those mediators and the description of an entirely new family of lipid mediators, resolvins and protectins that have anti-inflammatory actions and are critical to the resolution of inflammation. It is also recognised that EPA and DHA can inhibit activation of the prototypical inflammatory transcription factor NF-κB. Recent studies suggest three alternative mechanisms by which n-3 fatty acids might have this effect. Within T-cells, as well as other cells of relevance to immune and inflammatory responses, EPA and DHA act to disrupt very early events involving formation of the structures termed lipid rafts which bring together various proteins to form an effective signalling platform. In summary, recent research has identified a number of new mechanisms of action that help to explain previously identified effects of n-3 fatty acids on inflammation and immunity.
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26
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Johnson GH, Fritsche K. Effect of dietary linoleic acid on markers of inflammation in healthy persons: a systematic review of randomized controlled trials. J Acad Nutr Diet 2012; 112:1029-41, 1041.e1-15. [PMID: 22889633 DOI: 10.1016/j.jand.2012.03.029] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 03/23/2012] [Indexed: 12/18/2022]
Abstract
The majority of evidence suggests that n-6 polyunsaturated fatty acids, including linoleic acid (LA), reduce the risk of cardiovascular disease as reflected by current dietary recommendations. However, concern has been expressed that a high intake of dietary n-6 polyunsaturated fatty acid contributes to excess chronic inflammation, primarily by prompting the synthesis of proinflammatory eicosanoids derived from arachidonic acid and/or inhibiting the synthesis of anti-inflammatory eicosanoids from eicosapentaenoic and/or docosahexaenoic acids. A systematic review of randomized controlled trials that permitted the assessment of dietary LA on biologic markers of chronic inflammation among healthy noninfant populations was conducted to examine this concern. A search of the English- and non-English-language literature using MEDLINE, the Cochrane Controlled Trials Register, and EMBASE was conducted to identify relevant articles. Fifteen studies (eight parallel and seven crossover) met inclusion criteria. None of the studies reported significant findings for a wide variety of inflammatory markers, including C-reactive protein, fibrinogen, plasminogen activator inhibitor type 1, cytokines, soluble vascular adhesion molecules, or tumor necrosis factor-α. The only significant outcome measures reported for higher LA intakes were greater excretion of prostaglandin E2 and lower excretion of 2,3-dinor-thromboxane B(2) in one study and higher excretion of tetranorprostanedioic acid in another. However, the authors of those studies both observed that these effects were not an indication of increased inflammation. We conclude that virtually no evidence is available from randomized, controlled intervention studies among healthy, noninfant human beings to show that addition of LA to the diet increases the concentration of inflammatory markers.
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Affiliation(s)
- Guy H Johnson
- Department of Food Science and Human Nutrition, The University of Illinois, Urbana-Champaign, USA.
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27
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Calder PC. The role of marine omega-3 (
n
-3) fatty acids in inflammatory processes, atherosclerosis and plaque stability. Mol Nutr Food Res 2012; 56:1073-80. [DOI: 10.1002/mnfr.201100710] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Philip C. Calder
- Human Development and Health Academic Unit; Faculty of Medicine; University of Southampton; MP887 Southampton General Hospital; Southampton UK
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Grenon SM, Hughes-Fulford M, Rapp J, Conte MS. Polyunsaturated fatty acids and peripheral artery disease. Vasc Med 2012; 17:51-63. [PMID: 22363018 DOI: 10.1177/1358863x11429175] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
There is substantial evidence that polyunsaturated fatty acids (PUFAs) such as n-3 and n-6 fatty acids (FAs) play an important role in prevention of atherosclerosis. In vitro and in vivo studies focusing on the interactions between monocytes and endothelial cells have explored the molecular effects of FAs on these interactions. Epidemiological surveys, followed by large, randomized, control trials have demonstrated a reduction in major cardiovascular events with supplementation of n-3 FAs in secondary prevention settings. The evidence of beneficial effects specific to patients with peripheral artery disease (PAD) remains elusive, and is the focus of this review.
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Affiliation(s)
- S Marlene Grenon
- Division of Vascular and Endovascular Surgery, University of California, San Francisco, San Francisco, CA 94121, USA.
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de Mello VDF, Kolehmanien M, Schwab U, Pulkkinen L, Uusitupa M. Gene expression of peripheral blood mononuclear cells as a tool in dietary intervention studies: What do we know so far? Mol Nutr Food Res 2012; 56:1160-72. [PMID: 22610960 DOI: 10.1002/mnfr.201100685] [Citation(s) in RCA: 125] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 03/01/2012] [Accepted: 03/11/2012] [Indexed: 12/21/2022]
Abstract
Peripheral blood mononuclear cells (PBMCs) generally refer to monocytes and lymphocytes, representing cells of the innate and adaptive immune systems. PBMCs are a promising target tissue in the field of nutrigenomics because they seem to reflect the effects of dietary modifications at the level of gene expression. In this review, we describe and discuss the scientific literature concerning the use of gene expression at the mRNA level measured from PBMCs in dietary interventions studies conducted in humans. A search of literature was undertaken using PubMed (last assessed November 24, 2011) and 20 articles were selected for discussion. Currently, results from these studies showed that PBMCs seem to reflect liver environment and complement adipose tissue findings in transcriptomics. PBMC gene expression after dietary intervention studies can be used for studying the response of certain genes related to fatty acid and cholesterol metabolism, and to explore the response of dietary interventions in relation to inflammation. However, PBMC transcriptomics from dietary intervention studies have not resulted yet in clear confirmation of candidate genes related to disease risk. Use of microarray technology in larger well-designed dietary intervention studies is still needed for exploring PBMC potential in the field of nutrigenomics.
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Affiliation(s)
- Vanessa Derenji Ferreira de Mello
- Department of Clinical Nutrition, Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland.
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Abstract
(n-3) PUFA are a family of biologically active fatty acids. The simplest member of this family, α-linolenic acid, can be converted to the more biologically active very long-chain (n-3) PUFA EPA and DHA; this process occurs by a series of desaturation and elongation reactions, with stearidonic acid being an intermediate in the pathway. Biological activity of α-linolenic and stearidonic acids most likely relates to their conversion to EPA. The very long-chain (n-3) PUFA have a range of physiological roles that relate to optimal cell membrane structure and optimal cell function and responses. Thus, (n-3) PUFA play a key role in preventing, and perhaps treating, many conditions of poor health and well-being. The multiple actions of (n-3) PUFA appear to involve multiple mechanisms that connect the cell membrane, the cytosol, and the nucleus. For some actions, (n-3) PUFA appear to act via receptors or sensors, so regulating signaling processes that influence patterns of gene expression. Some effects of (n-3) PUFA seem to involve changes in cell membrane fatty acid composition. Changing membrane composition can in turn affect membrane order, formation of lipid rafts, intracellular signaling processes, gene expression, and the production of both lipid and peptide mediators. Under typical Western dietary conditions, human cells tend to have a fairly high content of the (n-6) fatty acid arachidonic acid. Increased oral intake of EPA and DHA modifies the content of arachidonic acid as well as of EPA and DHA. Arachidonic acid is the substrate for eicosanoids involved in physiology and pathophysiology. The eicosanoids produced from EPA frequently have properties that are different from those that are produced from arachidonic acid. EPA and DHA are also substrates for production of resolvins and protectins, which seem to be biologically extremely potent. Increasing the contents of EPA and DHA in membranes modifies the pattern of production of these different lipid mediators.
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Affiliation(s)
- Philip C Calder
- Institute of Human Nutrition and Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, UK.
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Abstract
Inflammation plays a key role in many common conditions and diseases. Fatty acids can influence inflammation through a variety of mechanisms acting from the membrane to the nucleus. They act through cell surface and intracellular receptors that control inflammatory cell signalling and gene expression patterns. Modifications of inflammatory cell membrane fatty acid composition can modify membrane fluidity, lipid raft formation and cell signalling leading to altered gene expression and can alter the pattern of lipid and peptide mediator production. Cells involved in the inflammatory response usually contain a relatively high proportion of the n-6 fatty acid arachidonic acid in their membrane phospholipids. Eicosanoids produced from arachidonic acid have well-recognised roles in inflammation. Oral administration of the marine n-3 fatty acids EPA and DHA increases the contents of EPA and DHA in the membranes of cells involved in inflammation. This is accompanied by a decrease in the amount of arachidonic acid present. EPA is a substrate for eicosanoid synthesis and these are often less potent than those produced from arachidonic acid. EPA gives rise to E-series resolvins and DHA gives rise to D-series resolvins and protectins. Resolvins and protectins are anti-inflammatory and inflammation resolving. Thus, the exposure of inflammatory cells to different types of fatty acids can influence their function and so has the potential to modify inflammatory processes.
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Block RC, Dier U, Calderonartero P, Shearer GC, Kakinami L, Larson MK, Harris WS, Georas S, Mousa SA. The Effects of EPA+DHA and Aspirin on Inflammatory Cytokines and Angiogenesis Factors. ACTA ACUST UNITED AC 2011; 2:14-19. [PMID: 22530200 DOI: 10.4236/wjcd.2012.21003] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE: In a recent study, we showed that the combination of aspirin plus the omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) synergistically inhibited platelet function. As aspirin, EPA, and DHA have demonstrated anti-inflammatory properties, we hypothesized that the ingestion of EPA and DHA, with and without aspirin, would reduce plasma levels of inflammatory cytokines and angiogenesis factors more than aspirin alone and before aspirin was ingested. METHODS: Using multiplex technology, we investigated the effects of aspirin (single-dose 650 mg on day 1), EPA+DHA (3.4 g/d for days 2-29), and aspirin with EPA+DHA (day 30) on plasma levels of inflammatory cytokines and angiogenesis factors in healthy adults. RESULTS: Aspirin alone had no effect on any factor versus baseline, but EPA+DHA, with and without aspirin, significantly reduced concentrations of 8 of 9 factors. Although EPA+DHA plus aspirin reduced concentrations of a subset of the factors compared to baseline, neither aspirin alone nor the combination significantly reduced the level of any analyte more robustly than EPA+DHA alone. CONCLUSIONS: These data suggest that EPA+DHA has more pronounced down-regulatory effects on inflammation and angiogenesis than aspirin. The implications of these findings for the use of combined therapy for cardiovascular disease remain to be clarified.
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Affiliation(s)
- Robert C Block
- Department of Community and Preventive Medicine, the University of Rochester School of Medicine and Dentistry, Rochester, New York
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Fatty acids and inflammation: The cutting edge between food and pharma. Eur J Pharmacol 2011; 668 Suppl 1:S50-8. [DOI: 10.1016/j.ejphar.2011.05.085] [Citation(s) in RCA: 342] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 05/16/2011] [Accepted: 05/23/2011] [Indexed: 11/17/2022]
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Ander BP, Dupasquier CM, Prociuk MA, Pierce GN. Polyunsaturated fatty acids and their effects on cardiovascular disease. Exp Clin Cardiol 2011; 19:6858-63. [PMID: 19649216 DOI: 10.2174/138161281939131127111018] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 04/09/2013] [Indexed: 11/22/2022]
Abstract
Dietary polyunsaturated fatty acids (PUFAs) affect a wide variety of physiological processes. Much attention has been given to the n-3 PUFAs and their role in the prevention and treatment of cardiovascular disease, stemming from evidence obtained through a number of epidemiological studies and clinical trials. Investigators are now focused on elucidating the pathways and mechanisms for the biological action of n-3 PUFAs. Dietary intervention is recognized as a key measure in patient therapy and in the maintenance of human health in general. This review provides a summary of several important clinical trials, and while the exact modes of action of n-3 PUFA are not known, current viewpoints regarding the mechanisms of these fatty acids on atherosclerosis, circulating lipid profile, cell membranes, cell proliferation, platelet aggregation and cardiac arrhythmias are discussed.
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Affiliation(s)
- Bradley P Ander
- National Centre for Agri-Food Research in Medicine and the Division of Stroke and Vascular Disease, St Boniface Hospital Research Centre, and the Department of Physiology, Faculties of Medicine and Pharmacy, University of Manitoba, Winnipeg, Manitoba
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Calder PC. Omega-3 fatty acids and inflammatory processes. Nutrients 2010; 2:355-374. [PMID: 22254027 PMCID: PMC3257651 DOI: 10.3390/nu2030355] [Citation(s) in RCA: 570] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2010] [Revised: 03/16/2010] [Accepted: 03/16/2010] [Indexed: 12/21/2022] Open
Abstract
Long chain fatty acids influence inflammation through a variety of mechanisms; many of these are mediated by, or at least associated with, changes in fatty acid composition of cell membranes. Changes in these compositions can modify membrane fluidity, cell signaling leading to altered gene expression, and the pattern of lipid mediator production. Cell involved in the inflammatory response are typically rich in the n-6 fatty acid arachidonic acid, but the contents of arachidonic acid and of the n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) can be altered through oral administration of EPA and DHA. Eicosanoids produced from arachidonic acid have roles in inflammation. EPA also gives rise to eicosanoids and these often have differing properties from those of arachidonic acid-derived eicosanoids. EPA and DHA give rise to newly discovered resolvins which are anti-inflammatory and inflammation resolving. Increased membrane content of EPA and DHA (and decreased arachidonic acid content) results in a changed pattern of production of eicosanoids and resolvins. Changing the fatty acid composition of cells involved in the inflammatory response also affects production of peptide mediators of inflammation (adhesion molecules, cytokines etc.). Thus, the fatty acid composition of cells involved in the inflammatory response influences their function; the contents of arachidonic acid, EPA and DHA appear to be especially important. The anti-inflammatory effects of marine n-3 PUFAs suggest that they may be useful as therapeutic agents in disorders with an inflammatory component.
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Affiliation(s)
- Philip C Calder
- Institute of Human Nutrition, School of Medicine, University of Southampton, MP887 Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
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Matsunaga H, Hokari R, Kurihara C, Okada Y, Takebayashi K, Okudaira K, Watanabe C, Komoto S, Nakamura M, Tsuzuki Y, Kawaguchi A, Nagao S, Miura S. Omega-3 polyunsaturated fatty acids ameliorate the severity of ileitis in the senescence accelerated mice (SAM)P1/Yit mice model. Clin Exp Immunol 2009; 158:325-33. [PMID: 19793338 DOI: 10.1111/j.1365-2249.2009.04020.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Clinical studies using omega-3 polyunsaturated fatty acids (omega3-PUFA) to Crohn's disease (CD) are conflicting. Beneficial effects of dietary omega3-PUFA intake in various experimental inflammatory bowel disease (IBD) models have been reported. However, animal models of large intestinal inflammation have been used in all previous studies, and the effect of omega3 fat in an animal model of small intestinal inflammation has not been reported. We hypothesized that the effects of omega3 fat are different between large and small intestine. The aim of this study was to determine whether the direct effect of omega3 fat is beneficial for small intestinal inflammation. Senescence accelerated mice (SAM)P1/Yit mice showed remarkable inflammation of the terminal ileum spontaneously. The numbers of F4/80-positive monocyte-macrophage cells as well as beta7-integrin-positive lymphocytes in the intestinal mucosa were increased significantly compared with those in the control mice (AKR-J mice). The area of mucosal addressin cell adhesion molecule-1 (MAdCAM-1)-positive vessels was also increased. The degree of expression levels of monocyte chemoattractant protein-1 (MCP-1), interleukin (IL)-6 and interferon (IFN)-gamma mRNA were increased significantly compared with those in the control mice. The feeding of two different kinds of omega3 fat (fish-oil-rich and perilla-oil-rich diets) for 16 weeks to SAMP1/Yit mice ameliorated inflammation of the terminal ileum significantly. In both the omega3-fat-rich diet groups, enhanced infiltration of F4/80-positive monocytes/macrophages in intestinal mucosa of SAMP1/Yit mice cells and the increased levels of MCP-1, IL-6 and IFN-gamma mRNA expression were ameliorated significantly compared with those in the control diet group. The results suggest that omega3 fat is beneficial for small intestinal inflammation by inhibition of monocyte recruitment to inflamed intestinal mucosa.
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Affiliation(s)
- H Matsunaga
- Department of Internal Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
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Waitzberg DL, Torrinhas RS. Fish Oil Lipid Emulsions and Immune Response: What Clinicians Need to Know. Nutr Clin Pract 2009; 24:487-99. [PMID: 19605803 DOI: 10.1177/0884533609339071] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Affiliation(s)
- Dan Linetzky Waitzberg
- From the Laboratory of Nutrition and Metabolic Surgery of the Digestive System, Gastroenterology Department, University of São Paulo Medical School, Brazil
| | - Raquel Susana Torrinhas
- From the Laboratory of Nutrition and Metabolic Surgery of the Digestive System, Gastroenterology Department, University of São Paulo Medical School, Brazil
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Matsuzaki M, Yokoyama M, Saito Y, Origasa H, Ishikawa Y, Oikawa S, Sasaki J, Hishida H, Itakura H, Kita T, Kitabatake A, Nakaya N, Sakata T, Shimada K, Shirato K, Matsuzawa Y. Incremental effects of eicosapentaenoic acid on cardiovascular events in statin-treated patients with coronary artery disease. Circ J 2009; 73:1283-90. [PMID: 19423946 DOI: 10.1253/circj.cj-08-1197] [Citation(s) in RCA: 118] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Results from JELIS (Japan EPA Lipid Intervention Study) demonstrated the efficacy of pure eicosapentaenoic acid (EPA) in preventing coronary artery disease (CAD) in hypercholesterolemic patients under statin treatment. The present study examined in detail whether EPA is effective for the secondary prevention of CAD. METHODS AND RESULTS Patients with established CAD and a total cholesterol level > or =250 mg/dl were observed with a mean follow-up of 4.6 years. They were randomly assigned to receive either 1,800 mg of EPA + statin (EPA group) or statin alone (control group). The incidence of major coronary events (MCE) were compared in the 2 groups. The incidence of MCE was significantly lower in the EPA group (8.7% vs 10.7%, adjusted hazard ratio =0.77, 95% confidence interval (CI) 0.63-0.96, P=0.017, number needed to treat (NNT) =49). Among 1,050 patients with prior myocardial infarction (MI), the incidence of MCE in the EPA group (15.0%) was significantly lower than that in the control group (20.1%, adjusted hazard ratio =0.73, 95%CI 0.54-0.98, P=0.033, NNT =19). CONCLUSIONS EPA is effective for secondary prevention of CAD, especially in individuals with prior MI, and should be added to conventional treatment.
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Affiliation(s)
- Masunori Matsuzaki
- Division of Cardiology, Department of Medicine and Clinical Science, Yamaguchi University Graduate School of Medicine, Minamikogushi, Ube, Japan.
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Jung UJ, Torrejon C, Tighe AP, Deckelbaum RJ. n-3 Fatty acids and cardiovascular disease: mechanisms underlying beneficial effects. Am J Clin Nutr 2008; 87:2003S-9S. [PMID: 18541602 DOI: 10.1093/ajcn/87.6.2003s] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Dietary n-3 fatty acids, particularly eicosapentaenoic acid and docosahexaenoic acid, are important nutrients through the life cycle. Evidence from observational, clinical, animal, and in vitro studies indicates a beneficial role of n-3 fatty acids in the prevention and management of cardiovascular disease. Although the precise mechanisms are still unclear, clinical and preclinical studies indicate that the cardioprotective effects of n-3 fatty acids may be attributed to a number of distinct biological effects on lipid and lipoprotein metabolism, blood pressure, platelet function, arterial cholesterol delivery, vascular function, and inflammatory responses.
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Affiliation(s)
- Un Ju Jung
- Department of Pediatrics, Institute of Human Nutrition, College of Physicians and Surgeons of Columbia University, and Scientiae, LLC, New York, NY 10032, USA
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Jenkins DJ, Josse AR, Dorian P, Burr ML, LaBelle Trangmar R, Kendall CW, Cunnane SC. Heterogeneity in Randomized Controlled Trials of Long Chain (Fish) Omega-3 Fatty Acids in Restenosis, Secondary Prevention and Ventricular Arrhythmias. J Am Coll Nutr 2008; 27:367-78. [DOI: 10.1080/07315724.2008.10719713] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
Nutrigenomics represents a shift of nutrition research from epidemiology and physiology to molecular biology and genetics. Nutrigenomics seeks to understand nutrition influences on homeostasis, the mechanism of genetic predispositions for diseases, to identify the genes influencing risk of diet related diseases. This review presents somein vitromodels applicable in nutrigenomic studies, and discuses the use of animal models, their advantages and limitations and relevance for human situation.In vitroandin vivomodels are suitable for performance of DNA microarrays, proteomic and transcriptomic analyses.In vitromodels (intracellular organelles and suborganellar compartments, cell cultures, or tissue samples/cultures) give insight in metabolic pathways and responses to test stimuli on cellular and molecular levels. Animal models allow evaluation of the biological significance of the effects recordedin vitroand testing of the hypothesis on how a specific factor affects specific species under specific circumstances. Therefore, the evaluation of the data in relation to human organism should be done carefully, considering the species differences. The use ofin vitroandin vivomodels is likely to continue as the effects of nutrition on health and disease cannot be fully explained without understanding of nutrients action at nuclear level and their role in the intra- and intercellular signal transduction. Through advances in cell and molecular biology (including genomic and proteomic), the use of these models should become more predictively accurate. However, this predictive value relies on an underpinning knowledge of the advantages and limitations of the model in nutrigenomic research as in other fields of biomedical research.
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De Caterina R, Zampolli A. Omega-3 fatty acids, atherogenesis, and endothelial activation. J Cardiovasc Med (Hagerstown) 2008; 8 Suppl 1:S11-4. [PMID: 17876190 DOI: 10.2459/01.jcm.0000289267.13353.5a] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Omega-3 or n-3 polyunsaturated fatty acids (PUFAs) display a variety of beneficial effects on various organ systems and diseases. Evidence for cardiovascular protective effects was among the first reasons for biomedical interest in these fats. Following these initial reports, evidence has continued to emerge demonstrating the cardioprotective effects of n-3 PUFAs and elucidating the underlying biological mechanisms. Decreased atherogenesis is currently thought to account at least in part for cardiovascular protection by n-3 PUFAs. We summarise the evidence for such effects and the putative mechanisms involved.
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Abstracts of the 5th International Meeting on Intensive Cardiac Care, October 14-16, 2007, Tel Aviv, Israel. ACTA ACUST UNITED AC 2007; 9:134-74. [PMID: 17917844 DOI: 10.1080/17482940701649731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
In their current guidelines cardiac societies recommend the consumption of the two n-3 fatty acids EPA and DHA to prevent cardiovascular complications. Cardiovascular events are reduced by EPA and DHA, because they are antiarrhythmic, mitigate the course of atherosclerosis and stabilise plaque. As atherosclerosis is considered an inflammatory disorder a number of studies have investigated the anti-inflammatory mechanisms of EPA and DHA in a cardiovascular context in human dietary intervention studies. Pro-inflammatory cytokines, or cytokines reflecting inflammatory processes, e.g. IL-1beta, IL-2, IL-6, TNFalpha, platelet-derived growth factor (PDGF)-A and -B and monocyte chemoattractant protein-1 (MCP-1), are reduced by ingestion of EPA and DHA by human subjects. Interestingly, C-reactive protein remains largely unaltered. However, in in vitro and animal models, but less so in human subjects, soluble cytokines reflecting interactions between blood cells and the vessel wall, such as intercellular adhesion molecule-1 and vascular cell adhesion molecule-1, are reduced. Moreover, in contrast to common expectations, oxidative stress seems to be reduced after ingestion of EPA and DHA, at least as indicated by measurement of urinary F(2) isoprostane excretion. Notably, for PDGF-A and -B and for MCP-1 the reduction has been demonstrated to occur at the gene expression level, which indicates that a deliberate change in diet can alter gene expression quantitatively. The precise underlying mechanism, however, remains to be clarified, but might involve PPAR, NF-kappaB and/or the eicosanoid system. The same holds true for the mechanisms by which levels of other cytokines are altered by EPA and DHA.
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Affiliation(s)
- C von Schacky
- Preventive Cardiology, Medizinische Klinik und Poliklinik Innenstadt, University of Munich, Ziemssenstrasse 1, D-80336 München, Germany.
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Yokoyama M, Origasa H, Matsuzaki M, Matsuzawa Y, Saito Y, Ishikawa Y, Oikawa S, Sasaki J, Hishida H, Itakura H, Kita T, Kitabatake A, Nakaya N, Sakata T, Shimada K, Shirato K. Effects of eicosapentaenoic acid on major coronary events in hypercholesterolaemic patients (JELIS): a randomised open-label, blinded endpoint analysis. Lancet 2007; 369:1090-8. [PMID: 17398308 DOI: 10.1016/s0140-6736(07)60527-3] [Citation(s) in RCA: 1728] [Impact Index Per Article: 101.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Epidemiological and clinical evidence suggests that an increased intake of long-chain n-3 fatty acids protects against mortality from coronary artery disease. We aimed to test the hypothesis that long-term use of eicosapentaenoic acid (EPA) is effective for prevention of major coronary events in hypercholesterolaemic patients in Japan who consume a large amount of fish. METHODS 18 645 patients with a total cholesterol of 6.5 mmol/L or greater were recruited from local physicians throughout Japan between 1996 and 1999. Patients were randomly assigned to receive either 1800 mg of EPA daily with statin (EPA group; n=9326) or statin only (controls; n=9319) with a 5-year follow-up. The primary endpoint was any major coronary event, including sudden cardiac death, fatal and non-fatal myocardial infarction, and other non-fatal events including unstable angina pectoris, angioplasty, stenting, or coronary artery bypass grafting. Analysis was by intention-to-treat. The study was registered at ClinicalTrials.gov, number NCT00231738. FINDINGS At mean follow-up of 4.6 years, we detected the primary endpoint in 262 (2.8%) patients in the EPA group and 324 (3.5%) in controls-a 19% relative reduction in major coronary events (p=0.011). Post-treatment LDL cholesterol concentrations decreased 25%, from 4.7 mmol/L in both groups. Serum LDL cholesterol was not a significant factor in a reduction of risk for major coronary events. Unstable angina and non-fatal coronary events were also significantly reduced in the EPA group. Sudden cardiac death and coronary death did not differ between groups. In patients with a history of coronary artery disease who were given EPA treatment, major coronary events were reduced by 19% (secondary prevention subgroup: 158 [8.7%] in the EPA group vs 197 [10.7%] in the control group; p=0.048). In patients with no history of coronary artery disease, EPA treatment reduced major coronary events by 18%, but this finding was not significant (104 [1.4%] in the EPA group vs 127 [1.7%] in the control group; p=0.132). INTERPRETATION EPA is a promising treatment for prevention of major coronary events, and especially non-fatal coronary events, in Japanese hypercholesterolaemic patients.
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von Schacky C. A review of omega-3 ethyl esters for cardiovascular prevention and treatment of increased blood triglyceride levels. Vasc Health Risk Manag 2007; 2:251-62. [PMID: 17326331 PMCID: PMC1993981 DOI: 10.2147/vhrm.2006.2.3.251] [Citation(s) in RCA: 78] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The two marine omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), prevalent in fish and fish oils, have been investigated as a strategy towards prophylaxis of atherosclerosis. While the results with fish and fish oils have been not as clear cut, the data generated with the purified ethyl ester forms of these two fatty acids are consistent. Although slight differences in biological activity exist between EPA and DHA, both exert a number of positive actions against atherosclerosis and its complications. EPA and DHA as ethyl esters inhibit platelet aggregability, and reduce serum triglycerides, while leaving other serum lipids essentially unaltered. Glucose metabolism has been studied extensively, and no adverse effects were seen. Pro-atherogenic cytokines are reduced, as are markers of endothelial activation. Endothelial function is improved, vascular occlusion is reduced, and the course of coronary atherosclerosis is mitigated. Heart rate is reduced, and heart rate variability is increased by EPA and DHA. An antiarrhythmic effect can be demonstrated on the supraventricular and the ventricular level. More importantly, two large studies showed reductions in clinical endpoints like sudden cardiac death or major adverse cardiac events. As a consequence, relevant cardiac societies recommend using 1 g/day of EPA and DHA for cardiovascular prevention, after a myocardial infarction and for prevention of sudden cardiac death.
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Affiliation(s)
- Clemens von Schacky
- Medizinische Klinik and Poliklinik Innenstadt, University of Munich, Munich, Germany.
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Hamer M, Steptoe A. Influence of specific nutrients on progression of atherosclerosis, vascular function, haemostasis and inflammation in coronary heart disease patients: a systematic review. Br J Nutr 2007; 95:849-59. [PMID: 16611374 DOI: 10.1079/bjn20061741] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Epidemiological evidence suggests that the diet influences CHD risk, although the protective effects of dietary intervention for patients in diseased states has gained less attention. Secondary care prevention strategies for patients often involves drug therapy that is expensive and can result in undesirable side effects. Therefore, it is potentially beneficial to utilise other strategies, such as diet, in the management of CHD. A systematic review was conducted to examine the effects of specific nutrients on progression of atherosclerosis, vascular function, haemostasis and inflammation in CHD patients. Results show substantial evidence for the efficacy ofn–3 oils in reducing cardiovascular mortality and one mechanism may be related to the stabilisation of vulnerable atherosclerotic plaques, although the effects on progression of atherosclerosis, haemostatic activity and vascular inflammation remain equivocal. Promising data also exist for the efficacy of flavonoid-rich foods for improving endothelial function, although strong clinical endpoint evidence is lacking. The variation in the efficacy of certain nutrients in CHD patients may be explained by genetics, existing risk factors, psychosocial factors and methodological issues, although these are often not adequately taken into consideration. We conclude that there is a need to undertake more appropriately designed trials in specific clinical populations, controlling for additional lifestyle and risk factors, examining potential interactions with medications, and also establishing methods to increase compliance to dietary recommendations before specific nutrients can be widely prescribed for secondary prevention. Future research should also utilise techniques that provide a direct measure of atherosclerosis.
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Affiliation(s)
- Mark Hamer
- Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London, WC1E 6BT, UK.
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48
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Abstract
The immune system acts to protect the host from infectious agents that exist in the environment and from other noxious insults. It is constantly active, acting to discriminate "nonself" from "self." The immune system has 2 functional divisions: the innate and the acquired. Both involve various blood-borne factors and cells. A number of methodologies exist to assess aspects of immune function; many of these rely on studying cells in culture ex vivo. There are large interindividual variations in many immune functions even among the healthy. Many factors, including genetics, gender, age, nutrient status, and gut flora, contribute to the observed variation. Individuals with immune responses significantly below "normal" are more susceptible to infectious agents and exhibit increased infectious morbidity and mortality. However, it is not clear how the variation in immune function among healthy individuals relates to variation in susceptibility to infection.
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Affiliation(s)
- Philip C Calder
- Institute of Human Nutrition, School of Medicine, University of Southampton, Southampton SO16 7PX, United Kingdom.
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49
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Abstract
N-3 (omega-3) (polyunsaturated) fatty acids are thought to display a variety of beneficial effects for human health. Clues to the occurrence of cardiovascular protective effects have been, however, the spur for the first biomedical interest in these compounds, and are the best documented. Historically, the epidemiologic association between dietary consumption of n-3 fatty acids and cardiovascular protection was first suggested by Bang and Dyerberg, who identified the high consumption of fish, and therefore, of fish oil-derived n-3 fatty acids, as the likely explanation for the strikingly low rate of coronary heart disease events reported in the Inuit population. Since their initial reports, research has proceeded in parallel to provide further evidence for their cardioprotection and to understand underlying mechanisms. Decreased atherogenesis is currently thought to be a part of the cardiovascular protection by n-3 fatty acids. This article summarizes the evidence for such a claim and the mechanisms putatively involved.
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50
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Abstract
Accumulating evidence in both humans and animal models clearly indicates that a group of very-long-chain polyunsaturated fatty acids, the n-3 fatty acids (or omega-3), have distinct and important bioactive properties compared with other groups of fatty acids. n-3 Fatty acids are known to reduce many risk factors associated with several diseases, such as cardiovascular diseases, diabetes, and cancer. The mechanisms whereby n-3 fatty acids affect gene expression are complex and involve multiple processes. As examples, n-3 fatty acids regulate 2 groups of transcription factors, such as sterol-regulatory-element binding proteins and peroxisome proliferator-activated receptors, that are critical for modulating the expression of genes controlling both systemic and tissue-specific lipid homeostasis. Modulation of specific genes by n-3 fatty acids and cross-talk between these genes are responsible for many effects of n-3 fatty acids.
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Affiliation(s)
- Richard J Deckelbaum
- Institute of Human Nutrition, the Department of Pediatrics, College of Physicians & Surgeons of Columbia University, New York, NY 10032, USA.
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