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Derbyshire EJ, Birch CS, Bonwick GA, English A, Metcalfe P, Li W. Optimal omegas - barriers and novel methods to narrow omega-3 gaps. A narrative review. Front Nutr 2024; 11:1325099. [PMID: 38371504 PMCID: PMC10869628 DOI: 10.3389/fnut.2024.1325099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/05/2024] [Indexed: 02/20/2024] Open
Abstract
Dietary intakes of omega-3 long chain polyunsaturated fatty acids (O3LC-PUFAs) such as eicosapentaenoic and docosahexaenoic acid are central to development and health across the life course. O3LC-PUFAs have been linked to neurological development, maternal and child health and the etiology of certain non-communicable diseases including age-related cognitive decline, cardiovascular disease, and diabetes. However, dietary inadequacies exist in the United Kingdom and on a wider global scale. One predominant dietary source of O3LC-PUFAs is fish and fish oils. However, growing concerns about overfishing, oceanic contaminants such as dioxins and microplastics and the trend towards plant-based diets appear to be acting as cumulative barriers to O3LC-PUFAs from these food sources. Microalgae are an alternative provider of O3LC-PUFA-rich oils. The delivery of these into food systems is gaining interest. The present narrative review aims to discuss the present barriers to obtaining suitable levels of O3LC-PUFAs for health and wellbeing. It then discusses potential ways forward focusing on innovative delivery methods to utilize O3LC-PUFA-rich oils including the use of fortification strategies, bioengineered plants, microencapsulation, and microalgae.
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Affiliation(s)
| | | | | | | | - Phil Metcalfe
- Efficiency Technologies Limited, Milton Keynes, England, United Kingdom
| | - Weili Li
- University of Chester, Chester, United Kingdom
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2
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Khan I, Hussain M, Jiang B, Zheng L, Pan Y, Hu J, Khan A, Ashraf A, Zou X. Omega-3 long-chain polyunsaturated fatty acids: Metabolism and health implications. Prog Lipid Res 2023; 92:101255. [PMID: 37838255 DOI: 10.1016/j.plipres.2023.101255] [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: 06/25/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
Recently, omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) have gained substantial interest due to their specific structure and biological functions. Humans cannot naturally produce these fatty acids (FAs), making it crucial to obtain them from our diet. This comprehensive review details n-3 LC-PUFAs and their role in promoting and maintaining optimal health. The article thoroughly analyses several sources of n-3 LC-PUFAs and their respective bioavailability, covering marine, microbial and plant-based sources. Furthermore, we provide an in-depth analysis of the biological impacts of n-3 LC-PUFAs on health conditions, with particular emphasis on cardiovascular disease (CVD), gastrointestinal (GI) cancer, diabetes, depression, arthritis, and cognition. In addition, we highlight the significance of fortification and supplementation of n-3 LC-PUFAs in both functional foods and dietary supplements. Additionally, we conducted a detailed analysis of the several kinds of n-3 LC-PUFAs supplements currently available in the market, including an assessment of their recommended intake, safety, and effectiveness. The dietary guidelines associated with n-3 LC-PUFAs are also highlighted, focusing on the significance of maintaining a well-balanced intake of n-3 PUFAs to enhance health benefits. Lastly, we highlight future directions for further research in this area and their potential implications for public health.
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Affiliation(s)
- Imad Khan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Mudassar Hussain
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Bangzhi Jiang
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Lei Zheng
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Yuechao Pan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Jijie Hu
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Adil Khan
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Azqa Ashraf
- School of Food Science and Engineering, Ocean University of China, Qingdao 2666100, China
| | - Xiaoqiang Zou
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
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3
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Benvenga S, Famà F, Perdichizzi LG, Antonelli A, Brenta G, Vermiglio F, Moleti M. Fish and the Thyroid: A Janus Bifrons Relationship Caused by Pollutants and the Omega-3 Polyunsaturated Fatty Acids. Front Endocrinol (Lausanne) 2022; 13:891233. [PMID: 35712237 PMCID: PMC9196333 DOI: 10.3389/fendo.2022.891233] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 04/21/2022] [Indexed: 12/20/2022] Open
Abstract
Benefits of the omega-3 polyunsaturated fatty acids (PUFA) on a number of clinical disorders, including autoimmune diseases, are widely reported in the literature. One major dietary source of PUFA are fish, particularly the small oily fish, like anchovy, sardine, mackerel and others. Unfortunately, fish (particularly the large, top-predator fish like swordfish) are also a source of pollutants, including the heavy metals. One relevant heavy metal is mercury, a known environmental trigger of autoimmunity that is measurable inside the thyroid. There are a number of interactions between the omega-3 PUFA and thyroid hormones, even at the level of the thyroid hormone transport proteins. Concerning the mechanisms behind the protection from/amelioration of autoimmune diseases, including thyroiditis, that are caused by the omega-3 PUFA, one can be the decreased production of chemokines, a decrease that was reported in the literature for other nutraceuticals. Recent studies point also to the involvement of resolvins. The intracellular increase in resolvins is associated with the tissue protection from inflammation that was observed in experimental animals after coadministration of omega-3 PUFA and thyroid hormone. After having presented data on fish consumption at the beginning, we conclude our review by presenting data on the market of the dietary supplements/nutraceuticals. The global omega-3 products market was valued at USD 2.10 billion in 2020, and was projected to go up at a compound annual growth rate of 7.8% from 2020 to 2028. Among supplements, fish oils, which are derived mainly from anchovies, are considered the best and generally safest source of omega-3. Taking into account (i) the anti-autoimmunity and anti-cancer properties of the omega-3 PUFA, (ii) the increasing incidence of both autoimmune thyroiditis and thyroid cancer worldwide, (iii) the predisposing role for thyroid cancer exerted by autoimmune thyroiditis, and (iv) the risk for developing metabolic and cardiovascular disorders conferred by both elevated/trendwise elevated serum TSH levels and thyroid autoimmunity, then there is enough rationale for the omega-3 PUFA as measures to contrast the appearance and/or duration of Hashimoto's thyroiditis as well as to correct the slightly elevated serum TSH levels of subclinical hypothyroidism.
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Affiliation(s)
- Salvatore Benvenga
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Fausto Famà
- Department of Human Pathology in Adulthood and Childhood “G. Barresi”, University of Messina, Messina, Italy
- *Correspondence: Fausto Famà, ;
| | | | - Alessandro Antonelli
- Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, Pisa, Italy
| | - Gabriela Brenta
- Division of Endocrinology, Dr. Cesar Milstein Hospital, Buenos Aires, Argentina
| | - Francesco Vermiglio
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Mariacarla Moleti
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
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4
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Diet-Regulating Microbiota and Host Immune System in Liver Disease. Int J Mol Sci 2021; 22:ijms22126326. [PMID: 34199182 PMCID: PMC8231888 DOI: 10.3390/ijms22126326] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/07/2021] [Accepted: 06/10/2021] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota has been known to modulate the immune responses in chronic liver diseases. Recent evidence suggests that effects of dietary foods on health care and human diseases are related to both the immune reaction and the microbiome. The gut-microbiome and intestinal immune system play a central role in the control of bacterial translocation-induced liver disease. Dysbiosis, small intestinal bacterial overgrowth, translocation, endotoxemia, and the direct effects of metabolites are the main events in the gut-liver axis, and immune responses act on every pathways of chronic liver disease. Microbiome-derived metabolites or bacteria themselves regulate immune cell functions such as recognition or activation of receptors, the control of gene expression by epigenetic change, activation of immune cells, and the integration of cellular metabolism. Here, we reviewed recent reports about the immunologic role of gut microbiotas in liver disease, highlighting the role of diet in chronic liver disease.
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Kruse M, Kemper M, Gancheva S, Osterhoff M, Dannenberger D, Markgraf D, Machann J, Hierholzer J, Roden M, Pfeiffer AFH. Dietary Rapeseed Oil Supplementation Reduces Hepatic Steatosis in Obese Men-A Randomized Controlled Trial. Mol Nutr Food Res 2020; 64:e2000419. [PMID: 32920973 DOI: 10.1002/mnfr.202000419] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 08/13/2020] [Indexed: 01/01/2023]
Abstract
SCOPE Effective treatment for obesity associated non-alcoholic fatty liver disease (NAFLD) is limited. Dietary supplementation of n-3 polyunsaturated fatty acids, specifically alpha linolenic acid (ALA), can resolve intrahepatic lipid content (IHL). This study investigates the effect of daily supplementation of either refined rapeseed (RA), containing high amounts of ALA, or refined olive (OL) oil on IHL and glucose metabolism in NAFLD patients. METHODS AND RESULTS 27 obese men consumed an isocaloric diet including either 50 g of RA or OL daily for 8 weeks. Hepatic proton magnetic resonance spectroscopy, hyperinsulinemic-euglycemic clamp studies and blood tests are performed before and at the end of the study. At 8 weeks a significant reduction in IHL is observed for RA (13.1 ± 1.6 before versus 11.1 ± 1.6% after intervention) versus OL (13.3 ± 2.5 before versus 15.7 ± 2.7% after intervention). For RA, a 21% reduction (P < 0.02) in serum free fatty acids (FFA) and a 1.68-fold increase (P = 0.03) of serum interleukin-6 (IL-6) is observed after 8 weeks. CONCLUSION RA has a beneficial effect on hepatic lipid metabolism as shown by reduced IHL and serum FFA. RA induced IL-6 production seems to be liver protective confirming previous results.
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Affiliation(s)
- Michael Kruse
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Clinical Nutrition, 14558, Nuthetal, Germany.,Charité University Medicine Berlin, Department of Endocrinology, 10117, Berlin, Germany
| | - Margrit Kemper
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Clinical Nutrition, 14558, Nuthetal, Germany.,Charité University Medicine Berlin, Department of Endocrinology, 10117, Berlin, Germany.,German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany
| | - Sofiya Gancheva
- German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany.,Division of Endocrinology and Diabetology, Medical Faculty, Heinrich-Heine University, 40225, Düsseldorf, Germany.,Institute for Clinical Diabetology, German Diabetes Center Düsseldorf, Leibniz Center for Diabetes Research at Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Martin Osterhoff
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Clinical Nutrition, 14558, Nuthetal, Germany.,Charité University Medicine Berlin, Department of Endocrinology, 10117, Berlin, Germany
| | - Dirk Dannenberger
- Leibniz Institute for Farm Animal Biology, Institute of Muscle Biology and Growth, 18196, Dummerstorf, Germany
| | - Daniel Markgraf
- German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany.,Institute for Clinical Diabetology, German Diabetes Center Düsseldorf, Leibniz Center for Diabetes Research at Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Jürgen Machann
- German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany.,Institute for Diabetes Research and Metabolic Diseases (IDM) of the Helmholtz Center Munich at the University of Tübingen, 72076, Tübingen, Germany.,Section of Experimental Radiology, Department of Diagnostic and Interventional Radiology, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Johannes Hierholzer
- Department of Diagnostic and Interventional Radiology, Ernst von Bergmann Hospital, 14467, Potsdam, Germany
| | - Michael Roden
- German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany.,Division of Endocrinology and Diabetology, Medical Faculty, Heinrich-Heine University, 40225, Düsseldorf, Germany.,Institute for Clinical Diabetology, German Diabetes Center Düsseldorf, Leibniz Center for Diabetes Research at Heinrich-Heine University, 40225, Düsseldorf, Germany
| | - Andreas F H Pfeiffer
- German Institute of Human Nutrition Potsdam-Rehbruecke, Department of Clinical Nutrition, 14558, Nuthetal, Germany.,Charité University Medicine Berlin, Department of Endocrinology, 10117, Berlin, Germany.,German Center for Diabetes Research (DZD), München, 85764, Neuherberg, Germany
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6
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Brown Z, Metcalf R, Bednarz J, Spargo L, Lee A, Hill C, Wechalekar M, Stavrou C, James M, Cleland L, Proudman S. Modifiable Lifestyle Factors Associated With Response to Treatment in Early Rheumatoid Arthritis. ACR Open Rheumatol 2020; 2:371-377. [PMID: 32453505 PMCID: PMC7301874 DOI: 10.1002/acr2.11132] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 03/13/2020] [Indexed: 01/18/2023] Open
Abstract
Objective We aimed to evaluate the associations between response to algorithm‐directed treat‐to‐target conventional synthetic disease‐modifying antirheumatic drug therapy and potentially modifiable lifestyle factors, including dietary fish oil supplementation, body mass index (BMI), and smoking history in a rheumatoid arthritis (RA) inception cohort. Methods Patients with RA with a duration of less than 12 months were reviewed every 3 to 6 weeks to adjust therapy according to disease response. All patients received advice to take fish oil supplements, and omega‐3 status was measured as plasma levels of eicosapentaenoic acid (EPA). Lifestyle factors and other variables potentially prognostic for 28‐joint Disease Activity Score (DAS28) remission and DAS28 low disease activity (LDA) at the 12‐month visit were included in multivariable logistic regression models. Results Of 300 participants, 57.7% reached DAS28 LDA, and 43.7% were in DAS28 remission at 1 year. Increase in plasma EPA was associated with an increase in the odds of being in LDA (adjusted odds ratio [OR] = 1.27; P < 0.0001) and remission (adjusted OR = 1.21; P < 0.001). There was some evidence that the effect of BMI on LDA might be modified by smoking history. An increase in BMI was associated with a decrease in the odds of being in LDA in current and former smokers but had no impact on LDA in patients who had never smoked. There were no meaningful associations between BMI or smoking history and remission. Conclusion Omega‐3 status, BMI, and smoking history are potential predictors of outcome in early RA. The possibility of an effect modification by smoking on the predictive value of BMI merits further investigation.
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Affiliation(s)
- Zoe Brown
- Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Robert Metcalf
- Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Jana Bednarz
- University of Adelaide, Adelaide, South Australia, Australia
| | | | - Anita Lee
- Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Catherine Hill
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, Australia
| | - Mihir Wechalekar
- Flinders Medical Centre and Flinders University, Bedford Park, South Australia, Australia
| | | | - Michael James
- Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Les Cleland
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, Australia
| | - Susanna Proudman
- Royal Adelaide Hospital and University of Adelaide, Adelaide, South Australia, Australia
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7
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Fan R, Kim J, You M, Giraud D, Toney AM, Shin SH, Kim SY, Borkowski K, Newman JW, Chung S. α-Linolenic acid-enriched butter attenuated high fat diet-induced insulin resistance and inflammation by promoting bioconversion of n-3 PUFA and subsequent oxylipin formation. J Nutr Biochem 2020; 76:108285. [PMID: 31760228 PMCID: PMC6995772 DOI: 10.1016/j.jnutbio.2019.108285] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 09/01/2019] [Accepted: 11/04/2019] [Indexed: 12/18/2022]
Abstract
α-Linolenic acid (ALA) is an essential fatty acid and the precursor for long-chain n-3 PUFA. However, biosynthesis of n-3 PUFA is limited in a Western diet likely due to an overabundance of n-6 PUFA. We hypothesized that dietary reduction of n-6/n-3 PUFA ratio is sufficient to promote the biosynthesis of long-chain n-3 PUFA, leading to an attenuation of high fat (HF) diet-induced obesity and inflammation. C57BL/6 J mice were fed a HF diet from ALA-enriched butter (n3Bu, n-6/n-3=1) in comparison with isocaloric HF diets from either conventional butter lacking both ALA and LA (Bu, n-6/n-3=6), or margarine containing a similar amount of ALA and abundant LA (Ma, n-6/n-3=6). Targeted lipidomic analyses revealed that n3Bu feeding promoted the bioconversion of long-chain n-3 PUFA and their oxygenated metabolites (oxylipins) derived from ALA and EPA. The n3Bu supplementation attenuated hepatic TG accumulation and adipose tissue inflammation, resulting in improved insulin sensitivity. Decreased inflammation by n3Bu feeding was attributed to the suppression of NF-κB activation and M1 macrophage polarization. Collectively, our work suggests that dietary reduction of the n-6/n-3 PUFA ratio, as well as total n-3 PUFA consumed, is a crucial determinant that facilitates n-3 PUFA biosynthesis and subsequent lipidomic modifications, thereby conferring metabolic benefits against obesity-induced inflammation and insulin resistance.
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Affiliation(s)
- Rong Fan
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE
| | - Judy Kim
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE
| | - Mikyoung You
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE
| | - David Giraud
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE
| | - Ashley M Toney
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE
| | - Seung-Ho Shin
- Sunseo Omega Inc, University of Nebraska Innovation Campus, Lincoln, NE
| | - So-Youn Kim
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, and Fred & Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE
| | - Kamil Borkowski
- West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA
| | - John W Newman
- West Coast Metabolomics Center, Genome Center, University of California Davis, Davis, CA; Obesity and Metabolism Research Unit, USDA-ARS-WHNRC, Davis, CA
| | - Soonkyu Chung
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, NE.
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8
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Alpha-Linolenic Acid-Enriched Butter Promotes Fatty Acid Remodeling and Thermogenic Activation in the Brown Adipose Tissue. Nutrients 2020; 12:nu12010136. [PMID: 31947716 PMCID: PMC7019653 DOI: 10.3390/nu12010136] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/26/2019] [Accepted: 12/30/2019] [Indexed: 01/12/2023] Open
Abstract
Supplementation with n-3 long-chain (LC) polyunsaturated fatty acids (PUFA) is known to promote thermogenesis via the activation of brown adipose tissue (BAT). Agricultural products that are biofortified with α-linolenic acid (ALA), the precursor of n-3 LC PUFA, have been launched to the market, but their impact on BAT function is unknown. This study aimed to evaluate the effects of ALA-biofortified butter on lipid metabolism and thermogenic functions in the BAT. C57BL/6 mice were fed a high-fat diet containing ALA-biofortified butter (n3Bu, 45% calorie from fat) for ten weeks in comparison with the isocaloric high-fat diets prepared from conventional butter or margarine. The intake of n3Bu significantly reduced the whitening of BAT and increased the thermogenesis in response to acute-cold treatment. Also, n3Bu supplementation is linked with the remodeling of BAT by promoting bioconversion into n-3 LC PUFA, FA elongation and desaturation, and mitochondrial biogenesis. Taken together, our results support that ALA-biofortified butter is a novel source of n-3 PUFA, which potentiates the BAT thermogenic function.
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Nikolic Turnic T, Arsic A, Vucic V, Petrovic S, Ristic-Medic D, Zivkovic V, Srejovic I, Jeremic J, Radonjic T, Milosavljevic I, Bolevich S, Bolevich S, Djuric D, Jakovljevic V. Hydroxymethylglutaryl Coenzyme a Reductase Inhibitors Differentially Modulate Plasma Fatty Acids in Rats With Diet-Induced-Hyperhomocysteinemia: Is ω-3 Fatty Acids Supplementation Necessary? Front Physiol 2019; 10:892. [PMID: 31379600 PMCID: PMC6646860 DOI: 10.3389/fphys.2019.00892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/27/2019] [Indexed: 02/05/2023] Open
Affiliation(s)
- Tamara Nikolic Turnic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Aleksandra Arsic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Vesna Vucic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Snjezana Petrovic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Danijela Ristic-Medic
- Centre of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Vladimir Zivkovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Ivan Srejovic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Jovana Jeremic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | | | - Isidora Milosavljevic
- Department of Pharmacy, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia
| | - Sergey Bolevich
- Department of Human Pathology, 1st Moscow State Medical, University IM Sechenov, Moscow, Russia
| | - Stefany Bolevich
- Department of Pathophysiology, 1st Moscow State Medical, University IM Sechenov, Moscow, Russia
| | - Dragan Djuric
- Faculty of Medicine, Institute of Medical Physiology "Richard Burian," University of Belgrade, Belgrade, Serbia
| | - Vladimir Jakovljevic
- Department of Physiology, Faculty of Medical Sciences, University of Kragujevac, Kragujevac, Serbia.,Department of Human Pathology, 1st Moscow State Medical, University IM Sechenov, Moscow, Russia
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10
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Mychaleckyj JC, Nayak U, Colgate ER, Zhang D, Carstensen T, Ahmed S, Ahmed T, Mentzer AJ, Alam M, Kirkpatrick BD, Haque R, Faruque ASG, Petri WA. Multiplex genomewide association analysis of breast milk fatty acid composition extends the phenotypic association and potential selection of FADS1 variants to arachidonic acid, a critical infant micronutrient. J Med Genet 2018. [PMID: 29514873 PMCID: PMC6047159 DOI: 10.1136/jmedgenet-2017-105134] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Breast milk is the sole nutrition source during exclusive breastfeeding, and polyunsaturated fatty acids (FAs) are critical micronutrients in infant physical and cognitive development. There has been no prior genomewide association study of breast milk, hence our objective was to test for genetic association with breast milk FA composition. METHODS We measured the fractional composition of 26 individual FAs in breast milk samples from three cohorts totalling 1142 Bangladeshi mothers whose infants were genotyped on the Illumina MEGA chip and replicated on a custom Affymetrix 30K SNP array (n=616). Maternal genotypes were imputed using IMPUTE. RESULTS After running 33 separate FA fraction phenotypes, we found that SNPs known to be associated with serum FAs in the FADS1/2/3 region were also associated with breast milk FA composition (experiment-wise significance threshold 4.2×10-9). Hypothesis-neutral comparison of the 33 fractions showed that the most significant genetic association at the FADS1/2/3 locus was with fraction of arachidonic acid (AA) at SNP rs174556, with a very large per major allele effect size of 17% higher breast milk AA level. There was no evidence of independent association at FADS1/2/3 with any other FA or SNP after conditioning on AA and rs174556. We also found novel significant experiment-wise SNP associations with: polyunsaturated fatty acid (PUFA) 6/PUFA3 ratio (sorting nexin 29), eicosenoic (intergenic) and capric (component of oligomeric Golgi complex 3) acids; and six additional loci at genomewide significance (<5×10-8). CONCLUSIONS AA is the primary FA in breast milk influenced by genetic variation at the FADS1/2/3 locus, extending the potential phenotypes under genetic selection to include breast milk composition, thereby possibly affecting infant growth or cognition. Breast milk FA composition is influenced by maternal genetics in addition to diet and body composition.
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Affiliation(s)
- Josyf C Mychaleckyj
- Center for Public Health Genomics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - Uma Nayak
- Center for Public Health Genomics, Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, USA
| | - E Ross Colgate
- Department of Medicine, Vaccine Testing Center, University of Vermont, College of Medicine, Burlington, Vermont, USA
| | - Dadong Zhang
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, USA
| | | | - Shahnawaz Ahmed
- Center for Nutrition and Food Security, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Tahmeed Ahmed
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | | | - Masud Alam
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Beth D Kirkpatrick
- Department of Medicine, Vaccine Testing Center, University of Vermont, College of Medicine, Burlington, Vermont, USA
| | - Rashidul Haque
- International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - Abu Syed Golam Faruque
- Center for Nutrition and Food Security, International Centre for Diarrhoeal Disease Research, Dhaka, Bangladesh
| | - William A Petri
- Division of Infectious Diseases and International Health, Department of Medicine, Department of Pathology, University of Virginia, Charlottesville, Virginia, USA
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11
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Dal Bello B, Torri L, Piochi M, Bertolino M, Zeppa G. Fresh cheese as a vehicle for polyunsaturated fatty acids integration: effect on physico-chemical, microbiological and sensory characteristics. Int J Food Sci Nutr 2017; 68:800-810. [DOI: 10.1080/09637486.2017.1301891] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Barbara Dal Bello
- Department of Agricultural, Forestry, and Food Sciences (DISAFA), Grugliasco, Turin, Italy
| | - Luisa Torri
- University of Gastronomic Sciences, Bra, CN, Italy
| | - Maria Piochi
- University of Gastronomic Sciences, Bra, CN, Italy
| | - Marta Bertolino
- Department of Agricultural, Forestry, and Food Sciences (DISAFA), Grugliasco, Turin, Italy
| | - Giuseppe Zeppa
- Department of Agricultural, Forestry, and Food Sciences (DISAFA), Grugliasco, Turin, Italy
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12
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De Smet S, Vossen E. Meat: The balance between nutrition and health. A review. Meat Sci 2016; 120:145-156. [DOI: 10.1016/j.meatsci.2016.04.008] [Citation(s) in RCA: 152] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/06/2016] [Accepted: 04/07/2016] [Indexed: 12/15/2022]
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Stark KD, Van Elswyk ME, Higgins MR, Weatherford CA, Salem N. Global survey of the omega-3 fatty acids, docosahexaenoic acid and eicosapentaenoic acid in the blood stream of healthy adults. Prog Lipid Res 2016; 63:132-52. [PMID: 27216485 DOI: 10.1016/j.plipres.2016.05.001] [Citation(s) in RCA: 341] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 05/14/2016] [Accepted: 05/18/2016] [Indexed: 02/05/2023]
Abstract
Studies reporting blood levels of the omega-3 polyunsaturated fatty acids, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), were systematically identified in order to create a global map identifying countries and regions with different blood levels. Included studies were those of healthy adults, published in 1980 or later. A total of 298 studies met all inclusion criteria. Studies reported fatty acids in various blood fractions including plasma total lipids (33%), plasma phospholipid (32%), erythrocytes (32%) and whole blood (3.0%). Fatty acid data from each blood fraction were converted to relative weight percentages (wt.%) and then assigned to one of four discrete ranges (high, moderate, low, very low) corresponding to wt.% EPA+DHA in erythrocyte equivalents. Regions with high EPA+DHA blood levels (>8%) included the Sea of Japan, Scandinavia, and areas with indigenous populations or populations not fully adapted to Westernized food habits. Very low blood levels (≤4%) were observed in North America, Central and South America, Europe, the Middle East, Southeast Asia, and Africa. The present review reveals considerable variability in blood levels of EPA+DHA and the very low to low range of blood EPA+DHA for most of the world may increase global risk for chronic disease.
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Affiliation(s)
- Ken D Stark
- University of Waterloo, Department of Kinesiology, 200 University Avenue, Waterloo, ON, N2L 3G1, Canada.
| | - Mary E Van Elswyk
- Scientific Affairs, Van Elswyk Consulting, Inc., 10350 Macedonia St., Longmont, CO 80503, USA.
| | - M Roberta Higgins
- MEDetect Clinical Information Associates, Inc., PO Box 152, Skippack, PA 19474, USA.
| | | | - Norman Salem
- DSM Nutritional Products Ltd., 6480 Dobbin Road, Columbia, MD 21045, USA.
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Barden AE, Moghaddami M, Mas E, Phillips M, Cleland LG, Mori TA. Specialised pro-resolving mediators of inflammation in inflammatory arthritis. Prostaglandins Leukot Essent Fatty Acids 2016; 107:24-9. [PMID: 27033423 DOI: 10.1016/j.plefa.2016.03.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 02/12/2016] [Accepted: 03/02/2016] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Specialised pro-resolving mediators (SPM) are derived from n-3 long chain polyunsaturated fatty acids (n-3FA). They promote resolution of inflammation and may contribute to the beneficial effects of n-3FA in patients with arthritis. This study compared SPM in knee effusions and plasma of patients with arthritis taking n-3FA, and plasma of healthy volunteers taking n-3FA. METHODS Thirty six patients taking n-3FA undergoing arthrocentesis for an inflammatory knee effusion and 36 healthy volunteers who had taken n-3FA (2.4g/day) for 4 weeks were studied. SPM in synovial fluid and plasma were measured by liquid chromatography-tandem mass spectrometry included 18-hydroxyeicosapentaenoic acid (18-HEPE), the precursor of the E-series SPM (RvE1, RvE2, RvE3, 18R-RvE3), and 17-hydroxydocosahexaenoic acid (17-HDHA), the precursor of the D-series SPM (RvD1, 17R-RvD1, RvD2). Other SPM included protectin D1 (PD1), 10S,17S-dihydroxydocosahexaenoic acid (10,17S-DHDHA), maresin-1 (MaR-1) and 14-hydroxydocosahexaenoic acid (14-HDHA) derived from docosahexaenoic acid (DHA). RESULTS E- and D-series SPM and the precursors 18-HEPE and 17-HDHA were present in synovial fluid and plasma of the patients with inflammatory arthritis. Plasma SPM were negatively related to erythrocyte sedimentation rate in arthritis patients (P<0.01) and synovial fluid RvE2 was negatively associated with pain score (P=0.02). Conversion from 18-HEPE and 17-HDHA to E- and D-series SPM was greater in synovial fluid (P<0.01). Most plasma SPM in arthritis patients were elevated (P<0.05) compared with healthy volunteers, and conversion to E- and D-series SPM was greater (P<0.01). CONCLUSIONS SPM are present in chronic knee effusions and although the levels are lower than in plasma, the association between synovial fluid RvE2 and reduced pain scores suggests that synthesis of SPM at the site of inflammation is a relevant mechanism by which n-3FA alleviate the symptoms of arthritis.
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Affiliation(s)
- Anne E Barden
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia, GPO Box X2213, Perth, WA 6847, Australia.
| | - Mahin Moghaddami
- Rheumatology Unit, Royal Adelaide Hospital, North Terrace, Adelaide, SA, Australia; Discipline of Medicine, Adelaide University, Australia
| | - Emilie Mas
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia, GPO Box X2213, Perth, WA 6847, Australia
| | - Michael Phillips
- Harry Perkins Institute for Medical Research, Perth, WA, Australia
| | - Leslie G Cleland
- Rheumatology Unit, Royal Adelaide Hospital, North Terrace, Adelaide, SA, Australia; Discipline of Medicine, Adelaide University, Australia
| | - Trevor A Mori
- School of Medicine and Pharmacology, Royal Perth Hospital Unit, University of Western Australia, GPO Box X2213, Perth, WA 6847, Australia
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Fatty acid composition of chicken breast meat is dependent on genotype-related variation of FADS1 and FADS2 gene expression and desaturating activity. Animal 2015; 10:700-8. [PMID: 26670346 DOI: 10.1017/s1751731115002712] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In Western countries the dietary guidance emphasizes the need to decrease the intake of saturated fatty acids and to replace them with polyunsaturated fatty acids (PUFA), particularly long chain n-3 PUFA (LC-PUFA). The production of poultry meat having a lower fat content and healthier fatty acid (FA) profile is a hot topic for the poultry industry, and the possibility to identify genotypes able to produce meat with a higher LC-PUFA content deserves attention. The aims of the present study were to evidence in chicken (i) a genotype-related different expression of the desaturating enzymes delta-6 (Δ6, EC 1.14.99.25), delta-5 (Δ5, EC 1.14.19.) and delta-9 (Δ9, EC 1.14.19.1); (ii) the impact of the hypothesized different expression on the meat FA composition; (iii) the distribution of desaturase products in the different lipid classes. Slow (SG), medium (MG) and fast (FG) growing chickens fed the same diet were evaluated either for the relative expression of FADS1, FADS2 and SCD1 genes in liver (by q-PCR), or for the FA composition of breast meat. MG and particularly SG birds showed a greater expression of FADS2 and FADS1 genes, a higher Δ6 and Δ5 activity (estimated using desaturase indices), and consequently a higher LC-PUFA content in the breast meat than FG birds. The relationship between genotype and desaturating ability was demonstrated, with a significant impact on the PUFA content of breast meat. Due to the high consumption rate of avian meat, the identification of the best genotypes for meat production could represent an important goal not only for the food industry, but also for the improvement of human nutrition.
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Fayet-Moore F, Baghurst K, Meyer BJ. Four Models Including Fish, Seafood, Red Meat and Enriched Foods to Achieve Australian Dietary Recommendations for n-3 LCPUFA for All Life-Stages. Nutrients 2015; 7:8602-14. [PMID: 26492269 PMCID: PMC4632433 DOI: 10.3390/nu7105413] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 09/25/2015] [Accepted: 10/08/2015] [Indexed: 12/17/2022] Open
Abstract
Populations are not meeting recommended intakes of omega-3 long chain polyunsaturated fatty acids (n-3 LCPUFA). The aim was (i) to develop a database on n-3 LCPUFA enriched products; (ii) to undertake dietary modelling exercise using four dietary approaches to meet the recommendations and (iii) to determine the cost of the models. Six n-3 LCPUFA enriched foods were identified. Fish was categorised by n-3 LCPUFA content (mg/100 g categories as “excellent” “good” and “moderate”). The four models to meet recommended n-3 LCPUFA intakes were (i) fish only; (ii) moderate fish (with red meat and enriched foods); (iii) fish avoiders (red meat and enriched foods only); and (iv) lacto-ovo vegetarian diet (enriched foods only). Diets were modelled using the NUTTAB2010 database and n-3 LCPUFA were calculated and compared to the Suggested Dietary Targets (SDT). The cost of meeting these recommendations was calculated per 100 mg n-3 LCPUFA. The SDT were achieved for all life-stages with all four models. The weekly food intake in number of serves to meet the n-3 LCPUFA SDT for all life-stages for each dietary model were: (i) 2 “excellent” fish; (ii) 1 “excellent” and 1 “good” fish, and depending on life-stage, 3–4 lean red meat, 0–2 eggs and 3–26 enriched foods; (iii) 4 lean red meat, and 20–59 enriched foods; (iv) 37–66 enriched foods. Recommended intakes of n-3 LCPUFA were easily met by the consumption of fish, which was the cheapest source of n-3 LCPUFA. Other strategies may be required to achieve the recommendations including modifying the current food supply through feeding practices, novel plant sources and more enriched foods.
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Affiliation(s)
- Flavia Fayet-Moore
- Nutrition Research Australia, Level 13/167 Macquarie St, Sydney, NSW 2000, Australia
- Correspondence: ; Tel.: +61-(2)-8667-3072; Fax: +61-(2)-8667-3200
| | | | - Barbara J. Meyer
- School of Medicine, University of Wollongong, Northfields Ave, Wollongong, NSW 2522, Australia;
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17
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Abstract
A randomised controlled trial (RCT) of high-dose v. low-dose fish oil in recent-onset rheumatoid arthritis (RA) demonstrated that the group allocated to high-dose fish oil had increased remission and decreased failure of disease-modifying anti-rheumatic drug (DMARD) therapy. This study examines the relationships between plasma phospholipid levels of the n-3 fatty acids in fish oil, EPA and DHA, and remission and DMARD use in recent-onset RA. EPA and DHA were measured in blood samples from both groups of the RCT. The data were analysed as a single cohort, and Cox proportional hazards models were used to examine relationships between plasma phospholipid (PL) EPA and DHA and various outcome measures. When analysed as a single cohort, plasma PL EPA was related to time to remission, with a one unit increase in EPA (1% total fatty acids) associated with a 12% increase in the probability of remission at any time during the study period (hazard ratio (HR)=1.12; 95% CI 1.02, 1.23; P=0.02). Adjustment for smoking, anti-cyclic citrullinated peptide antibodies and 'shared epitope' HLA-DR allele status did not change the HR. Plasma PL EPA, adjusted for the same variables, was negatively related to time to DMARD failure (HR=0.85; 95% CI 0.72, 0.99; P=0.047). The HR for DHA and time to remission or DMARD failure were similar in magnitude to those for EPA, but not statistically significant. Biomarkers of n-3 status, such as plasma PL EPA, have the potential to predict clinical outcomes relevant to standard drug treatment of RA patients.
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18
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Moghaddami M, James M, Proudman S, Cleland LG. Synovial fluid and plasma n3 long chain polyunsaturated fatty acids in patients with inflammatory arthritis. Prostaglandins Leukot Essent Fatty Acids 2015; 97:7-12. [PMID: 25817850 DOI: 10.1016/j.plefa.2015.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Revised: 02/25/2015] [Accepted: 02/26/2015] [Indexed: 11/21/2022]
Abstract
Relationships between n-3 long chain polyunsaturated fatty acids (LC-PUFA) in plasma and synovial fluid (SF) were examined in 36 patients with knee effusion within the context of a variety of rheumatic diagnoses and various stated fish oil (FO) intakes (from 0 to 30mL of standard FO daily) of variable duration. In a sub-group of patients, correlations between PUFA in SF mononuclear cells (MNC) and cell-free supernatants of SF and between SF MNC and peripheral blood (PB) MNC were examined. Correlations were also sought between clinical data (stated FO intake, pain score) and n-3 LC-PUFA. Correlations between plasma n-3 LC-PUFA and SF n-3 LC-PUFA were very strong (r(2)>0.9, p<0.001). The LC-PUFA profiles of SF supernatants differed from those of MNC. PUFA profiles in PB MNC and SF MNC were similar, except for a higher proportion of DHA in the latter. Positive correlations were observed between stated intakes of FO and EPA in plasma and SF (for both r=0.37, p=0.02) and DHA in plasma (r=0.37, p=0.02) and SF (r=0.36, p=0.03). n-3 LC-PUFA in plasma and SF correlated inversely with pain score (plasma r(2)=0.16, p<0.02; SF r(2) 0.32, p=0.001). In conclusion, plasma n-3 LC-PUFA is a strong indicator of SF n-3 LC-PUFA status across a broad range of rheumatic diagnoses and FO intakes. Higher n-3 LC-PUFA in plasma and SF were associated with lesser pain experience.
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Affiliation(s)
- Mahin Moghaddami
- Arthritis Research Laboratory, Hanson Institute, SA Pathology, Adelaide, South Australia 5000, Australia; Discipline of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia; Rheumatology Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000, Australia.
| | - Michael James
- Arthritis Research Laboratory, Hanson Institute, SA Pathology, Adelaide, South Australia 5000, Australia; Discipline of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia; Rheumatology Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000, Australia.
| | - Susanna Proudman
- Arthritis Research Laboratory, Hanson Institute, SA Pathology, Adelaide, South Australia 5000, Australia; Discipline of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia; Rheumatology Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000, Australia.
| | - Leslie G Cleland
- Arthritis Research Laboratory, Hanson Institute, SA Pathology, Adelaide, South Australia 5000, Australia; Discipline of Medicine, University of Adelaide, Adelaide, South Australia 5000, Australia; Rheumatology Unit, Royal Adelaide Hospital, Adelaide, South Australia 5000, Australia.
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Hinriksdottir HH, Jonsdottir VL, Sveinsdottir K, Martinsdottir E, Ramel A. Bioavailability of long-chain n-3 fatty acids from enriched meals and from microencapsulated powder. Eur J Clin Nutr 2014; 69:344-8. [PMID: 25406967 DOI: 10.1038/ejcn.2014.250] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 09/10/2014] [Accepted: 10/12/2014] [Indexed: 11/09/2022]
Abstract
BACKGROUND Despite the potential benefits of long-chain n-3 polyunsaturated fatty acids (LC n-3 PUFAs), intake is often low because of low consumption of oily seafood. Microencapsulated fish oil powder can improve tolerance and acceptance of LC n-3 PUFAs. Bioavailability is important to achieve efficacy. We investigated the bioavailability of LC n-3 PUFAs from microencapsulated powder in comparison with meals enriched with liquid fish oil. METHODS Participants (N=99, age⩾50 years) of this 4-week double-blinded dietary intervention were randomized into three groups. Group 1 (n=38) received 1.5 g/d eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) as ready-to-eat meals enriched with liquid fish oil; group 2 (n=30) received the same amount of these LC n-3 PUFAs as microencapsulated fish oil powder and regular meals; and group 3 (n=31) was the control group, which received placebo powder and regular meals. Blood samples were taken from fingertips at baseline and at the end point. RESULTS Seventy-seven subjects (77.8%) completed the study. The amount of EPA in blood doubled in both groups that received LC n-3 PUFAs (P<0.05), but it did not change in the control group. The changes in DHA were less but still significant in both intervention groups. According to multivariate analysis, both intervention groups had higher end-point LC n-3 PUFA concentrations compared with placebo, but differences between intervention groups were not significant. CONCLUSION Bioavailability of LC n-3 PUFAs in encapsulated powder is very similar to the bioavailability of LC n-3 PUFAs in ready-to-eat meals enriched with liquid fish oil. Thus, encapsulated powder can be considered useful to increase LC n-3 PUFA concentrations in blood.
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Affiliation(s)
- H H Hinriksdottir
- Unit for Nutrition Research, National University Hospital & Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland
| | - V L Jonsdottir
- The Icelandic Food and Biotech R&D Institute, Reykjavik, Iceland
| | - K Sveinsdottir
- The Icelandic Food and Biotech R&D Institute, Reykjavik, Iceland
| | - E Martinsdottir
- The Icelandic Food and Biotech R&D Institute, Reykjavik, Iceland
| | - A Ramel
- Unit for Nutrition Research, National University Hospital & Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland
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20
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Abstract
All fats, including saturated fatty acids, have important roles in the body. However, the most important fats are those that the body cannot make and thus must come from the food we eat. These essential fatty acids (EFAs) are based on linoleic acid (omega-6 group) and alpha-linolenic acid (omega-3 group). We need both groups of essential fatty acids to survive. For various reasons EFA deficiency is common in the general population, as is a disproportionate intake of omega-6 fatty acids over omega-3 fatty acids. As such, it is important to eat the right foods to make sure that you're taking in enough and the right kinds of the essential fatty acids. However, there is much more to the story. Studies have shown that increasing the intake of certain essential fatty acids, either alone or in combination with other fats and compounds, can increase health, help in treating certain diseases, and even improve body composition, mental and physical performance.
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21
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Olmedilla-Alonso B, Jiménez-Colmenero F, Sánchez-Muniz FJ. Development and assessment of healthy properties of meat and meat products designed as functional foods. Meat Sci 2013; 95:919-30. [PMID: 23623320 DOI: 10.1016/j.meatsci.2013.03.030] [Citation(s) in RCA: 126] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 03/18/2013] [Accepted: 03/19/2013] [Indexed: 10/27/2022]
Abstract
This review deals with the two major aspects to be considered in the context of meat-based functional foods and human health. One involves the different strategies used to improve (increase or reduce) the presence of bioactive (healthy and unhealthy) compounds in meat and meat products in order to develop potential meat-based functional foods; these strategies are basically concerned with animal production practices, meat processing and storage, distribution and consumption conditions. Since the link between the consumption of those foods and their potentially beneficial effects (improving health and/or reducing the risk of several chronic diseases) needs to be demonstrated scientifically, the second aspect considered is related to intervention studies to examine the functional capacity of meat-based potentially functional foods in humans, discussing how the functionality of a food can be assessed in terms of its effects on health in relation to both target body functions and risk factors.
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Pietrasik Z, Wang H, Janz JAM. Effect of canola oil emulsion injection on processing characteristics and consumer acceptability of three muscles from mature beef. Meat Sci 2012; 93:322-8. [PMID: 23089241 DOI: 10.1016/j.meatsci.2012.09.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 09/24/2012] [Accepted: 09/25/2012] [Indexed: 10/27/2022]
Abstract
The study was undertaken to investigate the impact of the combined effect of blade tenderization and canola oil emulsion injection on processing yield and eating quality-related parameters of selected loin and hip muscles (longissimus lumborum, LL, biceps femoris, BF and semimembranosus, SM) from over thirty month (OTM) cattle. Canola oil emulsion injection significantly reduced shear force, increased sensory scores for juiciness and tenderness, and made connective tissue less perceptible. Targeted levels of omega-3 fatty acids can be achieved by the inclusion of canola oil containing marinades/emulsions at levels sufficient to retain omega-3 fatty acids in cooked product. All consumer acceptability attributes of OTM muscles were improved with the use of canola oil emulsion injection treatments without compromising colour although slightly decreasing oxidative stability of BF muscle. Injection of omega-3 oil emulsions in combination with blade tenderization can be effectively utilized to enrich injected products in essential fatty acids and enhance eating quality of OTM beef.
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Affiliation(s)
- Z Pietrasik
- Food Processing Development Centre, Alberta Agriculture and Rural Development, Leduc, AB, Canada T9E 7C5.
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Ghule AE, Jadhav SS, Bodhankar SL. Antiarrhythmic effect of flax lignan concentrate alone and concomitantly with omega 3 fatty acid mediated through inhibition of cardiomyocyte apoptosis in digoxin induced ventricular arrhythmia and lethality in rats. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.biomag.2012.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Three-way assessment of long-chain n-3 PUFA nutrition: by questionnaire and matched blood and skin samples. Br J Nutr 2012; 109:701-8. [PMID: 22617142 DOI: 10.1017/s0007114512001997] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The long-chain n-3 PUFA, EPA, is believed to be important for skin health, including roles in the modulation of inflammation and protection from photodamage. FFQ and blood levels are used as non-invasive proxies for assessing skin PUFA levels, but studies examining how well these proxies reflect target organ content are lacking. In seventy-eight healthy women (mean age 42·8, range 21-60 years) residing in Greater Manchester, we performed a quantitative analysis of long-chain n-3 PUFA nutrition estimated from a self-reported FFQ (n 75) and correlated this with n-3 PUFA concentrations in erythrocytes (n 72) and dermis (n 39). Linear associations between the three n-3 PUFA measurements were assessed by Spearman correlation coefficients and agreement between these measurements was estimated. Average total dietary content of the principal long-chain n-3 PUFA EPA and DHA was 171 (SD 168) and 236 (SD 248) mg/d, respectively. EPA showed significant correlations between FFQ assessments and both erythrocyte (r 0·57, P< 0·0001) and dermal (r 0·33, P= 0·05) levels, as well as between erythrocytes and dermis (r 0·45, P= 0·008). FFQ intake of DHA and the sum of n-3 PUFA also correlated well with erythrocyte concentrations (r 0·50, P< 0·0001; r 0·27, P= 0·03). Agreement between ranked thirds of dietary intake, blood and dermis approached 50% for EPA and DHA, though gross misclassification was lower for EPA. Thus, FFQ estimates and circulating levels of the dietary long-chain n-3 PUFA, EPA, may be utilised as well-correlated measures of its dermal bioavailability.
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Taneja A, Singh H. Challenges for the delivery of long-chain n-3 fatty acids in functional foods. Annu Rev Food Sci Technol 2012; 3:105-23. [PMID: 22224555 DOI: 10.1146/annurev-food-022811-101130] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Extensive research has shown that increased consumption of long-chain omega-3 polyunsaturated fatty acids (n-3 LCPUFAs), namely α-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), may lower the risk of chronic diseases, such as heart disease, cancer, and arthritis. Given that Western diets are deficient in n-3 LCPUFAs, enrichment of food products is seen as an alternative for increasing the intake of these fatty acids. However, because of the high instability of these fatty acids to oxidative deterioration, enrichment of foods with n-3 LCPUFAs has been technically challenging. This review provides an overview of different technical approaches that have been taken to overcome oxidation-related problems. This review also looks at the challenges faced by health organizations, food manufacturers, and food scientists for the delivery of long-chain n-3 fatty acids in functional foods.
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Affiliation(s)
- Amit Taneja
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand.
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Effects of similar intakes of marine n-3 fatty acids from enriched food products and fish oil on cardiovascular risk markers in healthy human subjects. Br J Nutr 2011; 107:1339-49. [PMID: 21917191 DOI: 10.1017/s0007114511004508] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
There is convincing evidence that consumption of fish and fish oil rich in long-chain (LC) n-3 PUFA (n-3 LCPUFA), EPA (20 : 5n-3) and DHA (22 : 6n-3) reduce the risk of CHD. The aim of the present study was to investigate whether n-3 LCPUFA-enriched food products provide similar beneficial effects as fish oil with regard to incorporation into plasma lipids and effects on cardiovascular risk markers. A parallel 7-week intervention trial was performed where 159 healthy men and women were randomised to consume either 34 g fish pâté (n 44), 500 ml fruit juice (n 38) or three capsules of concentrated fish oil (n 40), all contributing to a daily intake of approximately 1 g EPA and DHA. A fourth group did not receive any supplementation or food product and served as controls (n 37). Plasma fatty acid composition, serum lipids, and markers of inflammation and oxidative stress were measured. Compared with the control group, plasma n-3 LCPUFA and EPA:arachidonic acid ratio increased equally in all intervention groups. However, no significant changes in blood lipids and markers of inflammation and oxidative stress were observed. In conclusion, enriched fish pâté and fruit juice represent suitable delivery systems for n-3 LCPUFA. However, although the dose given is known to reduce the risk of CVD, no significant changes were observed on cardiovascular risk markers in this healthy population.
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García-Alonso FJ, Jorge-Vidal V, Ros G, Periago MJ. Effect of consumption of tomato juice enriched with n-3 polyunsaturated fatty acids on the lipid profile, antioxidant biomarker status, and cardiovascular disease risk in healthy women. Eur J Nutr 2011; 51:415-24. [PMID: 21755327 DOI: 10.1007/s00394-011-0225-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Accepted: 07/04/2011] [Indexed: 01/04/2023]
Abstract
PURPOSE We compared the effects of consumption of n-3 polyunsaturated fatty acids (PUFA)-enriched tomato juice versus plain tomato juice on the serum lipid profile and levels of biomarkers related to antioxidant status and cardiovascular disease (CVD) risk in women. METHODS Eighteen healthy women participated in a 2-week intervention trial involving the daily intake of 500 mL of n-3 PUFA-enriched juice (n = 11) or plain tomato juice (n = 7). Each serving of enriched juice provided 250 mg of eicosapentaenoic acid (EPA) plus docosahexanoic acid (DHA). Both juices provided natural antioxidant compounds such as phenolics (181 mg) and lycopene (26.5 mg). RESULTS Intervention with the enriched juice had no effect on the lipid profile, and serum levels of triglycerides and cholesterol (total, LDL, and HDL) remained unchanged. The serum antioxidant status improved following juice intake, as revealed by an increase in total antioxidant capacity and a slight decrease in lipid peroxidation. The serum levels of homocysteine, a cardiovascular risk factor, decreased following n-3 PUFA-enriched juice consumption. A decrease in vascular adhesion molecule 1 (VCAM-1) levels was also noted after intake of either plain or enriched tomato juice, whereas intercellular adhesion molecule 1 (ICAM-1) levels only decreased following intake of the enriched juice. CONCLUSIONS Overall, stronger positive amelioration of CVD risk factors was observed following the intake of n-3 PUFA-enriched juice than after plain tomato juice consumption, which suggested a possible synergistic action between n-3 PUFAs and tomato antioxidants.
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Affiliation(s)
- F J García-Alonso
- Department of Food Science and Nutrition, University of Murcia, Murcia, Spain
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Fatty acid desaturase 2 promoter mutation is not responsible for Δ6-desaturase deficiency. Eur J Hum Genet 2011; 19:1202-4. [PMID: 21629299 DOI: 10.1038/ejhg.2011.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Dietary essential polyunsaturated fatty acids (PUFAs) require fatty acid desaturases (FADS) for conversion to long-chain PUFAs (LCPUFAs), which are critical for many aspects of human health. A Δ6-desaturase deficiency in a single patient was attributed to an insertion mutation in the FADS2 promoter. Later population studies have shown this thymidine nucleotide (T) insertion to be a common polymorphism (rs3834458). We examined correlations between rs3834458 variants and fatty acid evidence of FADS2 activity in a cohort of rheumatoid arthritis patients selected for low or nil consumption of n-3 LCPUFA as fish or fish oil. The presence of the T allele was associated with higher FADS2 activity, as indicated by higher conversion of plasma n-3 PUFA to LCPUFA. However, the T-insertion/deletion polymorphism did not affect FADS2 promoter activity in luciferase reporter assays in HepG2 or NIH/3T3 cells. Our results indicate that the polymorphism rs3834458 does not appear to directly affect FADS2 promoter activity and is not responsible for a previously reported Δ6-desaturase deficiency.
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Ferguson LR, Smith BG, James BJ. Combining nutrition, food science and engineering in developing solutions to Inflammatory bowel diseases--omega-3 polyunsaturated fatty acids as an example. Food Funct 2010; 1:60-72. [PMID: 21776456 DOI: 10.1039/c0fo00057d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The Inflammatory bowel diseases, Crohn's disease and ulcerative colitis, are debilitating conditions, characterised by lifelong sensitivity to certain foods, and often a need for surgery and life-long medication. The anti-inflammatory effects of long chain omega-3 polyunsaturated acids justify their inclusion in enteral nutrition formulas that have been associated with disease remission. However, there have been variable data in clinical trials to test supplementary omega-3 polyunsaturated fatty acids in inducing or maintaining remission in these diseases. Although variability in trial design has been suggested as a major factor, we suggest that variability in processing and presentation of the products may be equally or more important. The nature of the source, and rapidity of getting the fish or other food source to processing or to market, will affect the percentage of the various fatty acids, possible presence of heavy metal contaminants and oxidation status of the various fatty acids. For dietary supplements or fortified foods, whether the product is encapsulated or not, whether storage is under nitrogen or not, and length of time between harvest, processing and marketing will again profoundly affect the properties of the final product. Clinical trials to test efficacy of these products in IBD to date have utilised the relevant skills of pharmacology and gastroenterology. We suggest that knowledge from food science, nutrition and engineering will be essential to establish the true role of this important group of compounds in these diseases.
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Affiliation(s)
- Lynnette R Ferguson
- Discipline of Nutrition, FM&HS, The University of Auckland, Auckland, New Zealand
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Eidhin DN, O'Beirne D. Oxidative stability and acceptability of camelina oil blended with selected fish oils. EUR J LIPID SCI TECH 2010. [DOI: 10.1002/ejlt.200900243] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Viuda-Martos M, López-Marcos M, Fernández-López J, Sendra E, López-Vargas J, Pérez-Álvarez J. Role of Fiber in Cardiovascular Diseases: A Review. Compr Rev Food Sci Food Saf 2010. [DOI: 10.1111/j.1541-4337.2009.00102.x] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Metcalf RG, Cleland LG, Gibson RA, Roberts-Thomson KC, Edwards JR, Sanders P, Stuklis R, James MJ, Young GD. Relation between blood and atrial fatty acids in patients undergoing cardiac bypass surgery. Am J Clin Nutr 2010; 91:528-34. [PMID: 20089730 DOI: 10.3945/ajcn.2009.28302] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Studies relating cardiovascular outcomes to dietary or blood measures of various fatty acids rely on the implicit assumptions that dietary change results in changes in blood fatty acids that, in turn, alter cardiac fatty acids. Although dietary intakes of n-3 (omega-3), n-6 (omega-6), and trans fatty acids are reflected in their concentrations in blood, there are few human data on the relation between blood and cardiac concentrations of fatty acids. OBJECTIVE The objective was to explore relations between blood and myocardial n-3, n-6, trans, monosaturated, and saturated fatty acids over a range of community intakes to evaluate whether blood fatty acids are useful surrogate markers of their cardiac counterparts. DESIGN Patients undergoing on-pump coronary bypass surgery were recruited. Right atrial appendages and blood were collected at surgery for fatty acid analysis. RESULTS Atrial appendages and matching blood samples were collected from 61 patients. Highly significant correlations were identified between atrial and erythrocyte or plasma n-3 [eg, eicosapentaenoic acid (erythrocytes: r = 0.93, P < 0.0001; plasma: r = 0.87, P < 0.0001)], some n-6 [eg, arachidonic acid (erythrocytes: r = 0.45, P = 0.0003; plasma: r = 0.39, P = 0.002)], trans [eg, total trans 18:1 (erythrocytes: r = 0.89, P < 0.0001; plasma: r = 0.74, P < 0.0001)], and monounsaturated [eg, oleic acid (erythrocytes: r = 0.37, P = 0.003)] fatty acids. There were no statistical associations between blood and cardiac saturated fatty acids. CONCLUSION Erythrocyte- and plasma phospholipid-derived fatty acids can be used to estimate cardiac fatty acid status in humans.
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Vasantha Rupasinghe HP, Yasmin A. Inhibition of oxidation of aqueous emulsions of omega-3 fatty acids and fish oil by phloretin and phloridzin. Molecules 2010; 15:251-7. [PMID: 20110888 PMCID: PMC6257126 DOI: 10.3390/molecules15010251] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Revised: 12/24/2009] [Accepted: 01/08/2010] [Indexed: 11/16/2022] Open
Abstract
The antioxidant properties of two apple dihydrochalcones, namely phloretin and phloridzin, were evaluated and compared with those of alpha-tocopherol and butylated hydroxytoluene (BHT). The effects were studied in an oil-in-water emulsion system containing methyl linolenate (ML), methyl eicosapentaenoate (MEPA), and methyl docosahexaenoate (MDHA) in which oxidation was initiated by the peroxyl radical generator 2,2-azobis(2-amidinopropane) dihydrochloride (AAPH) and in fish oil where oxidation was initiated thermally. In the emulsion system, phloretin (1 and 5 mM) completely inhibited the oxidation of ML tested as evidenced by the thiobarbituric acid reactive substances (TBARS) assay. Under the same conditions, phloridzin was less effective than phloretin, but still more effective than alpha-tocopherol. Both phloretin and phloridzin molecules had a marginal inhibitory effect against oxidation of fish oil induced by heating at 70 degrees C for 3 hours, when compared to BHT. These results indicate that phloretin and phloridzin have the potential to suppress lipid oxidation in polyunsaturated fatty acid (PUFA) containing foods.
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Affiliation(s)
- H P Vasantha Rupasinghe
- Tree Fruit Bio-product Research Program, Nova Scotia Agricultural College, P.O. Box 550, Truro, NS B2N5E3, Canada.
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Morse NL. A meta-analysis of blood fatty acids in people with learning disorders with particular interest in arachidonic acid. Prostaglandins Leukot Essent Fatty Acids 2009; 81:373-89. [PMID: 19819683 DOI: 10.1016/j.plefa.2009.09.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2009] [Accepted: 09/05/2009] [Indexed: 11/17/2022]
Abstract
Small individual studies report that people with learning disorders have lower than normal blood concentrations of docosahexaenoic acid and arachidonic acid. The origin and consequence of the subnormal docosahexaenoic acid have been much speculated. However, relatively little attention has been paid to the significance of the low arachidonic acid concentration. Studies were identified through a literature search including subjects with various learning disorders or symptoms thereof and age-matched controls. A meta-analysis of pooled data from the red blood cell and plasma/serum showed that red blood cell arachidonic acid and docosahexanoic acid concentrations were significantly lower than normal [-3.93 and -18.92, respectively (weighted mean difference as a % of weighted mean control)]. Plasma/serum arachidonic acid and docosahexaenoic acid concentrations were also significantly lower than normal [-6.99 and -15.66, respectively (weighted mean difference as a % of weighted mean control)]. However, in absolute amounts the arachidonic acid was as severely depressed as docosahexanoic acid within red blood cells 0.57mg/100mg of fatty acid below normal verses 0.59mg/100mg for docosahexaenoic acid. Plasma/serum arachidonic acid was even lower; 0.71mg/100mg of fatty acid below normal verses 0.34mg/100mg for docosahexaenoic acid. The origin, consequences and relative importance of subnormal arachidonic acid to brain function bears further investigation.
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Affiliation(s)
- N L Morse
- Efamol Ltd., 14 The Mole Business Park, Leatherhead, Surrey KT22 7BA, UK.
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Alpha-linolenic acid and its conversion to longer chain n-3 fatty acids: benefits for human health and a role in maintaining tissue n-3 fatty acid levels. Prog Lipid Res 2009; 48:355-74. [PMID: 19619583 DOI: 10.1016/j.plipres.2009.07.002] [Citation(s) in RCA: 357] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Revised: 06/13/2009] [Accepted: 07/14/2009] [Indexed: 11/22/2022]
Abstract
There is little doubt regarding the essential nature of alpha-linolenic acid (ALA), yet the capacity of dietary ALA to maintain adequate tissue levels of long chain n-3 fatty acids remains quite controversial. This simple point remains highly debated despite evidence that removal of dietary ALA promotes n-3 fatty acid inadequacy, including that of docosahexaenoic acid (DHA), and that many experiments demonstrate that dietary inclusion of ALA raises n-3 tissue fatty acid content, including DHA. Herein we propose, based upon our previous work and that of others, that ALA is elongated and desaturated in a tissue-dependent manner. One important concept is to recognize that ALA, like many other fatty acids, rapidly undergoes beta-oxidation and that the carbons are conserved and reused for synthesis of other products including cholesterol and fatty acids. This process and the differences between utilization of dietary DHA or liver-derived DHA as compared to ALA have led to the dogma that ALA is not a useful fatty acid for maintaining tissue long chain n-3 fatty acids, including DHA. Herein, we propose that indeed dietary ALA is a crucial dietary source of n-3 fatty acids and its dietary inclusion is critical for maintaining tissue long chain n-3 levels.
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Bioavailability of alpha-linolenic acid from flaxseed diets as a function of the age of the subject. Eur J Clin Nutr 2009; 63:1123-9. [PMID: 19584895 DOI: 10.1038/ejcn.2009.41] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Dietary flaxseed may have beneficial cardiovascular effects. An aged population has a higher incidence of cardiovascular disease, but they may react differently to flaxseed in the diet. OBJECTIVE To investigate the response, over a period of 4 weeks, of subjects aged 18-29 or 45-69 years to a diet containing the same amount of alpha-linolenic acid (ALA) (6 g) introduced in the form of ground flaxseed (30 g) or flaxseed oil. RESULTS All subjects who received flaxseed oil showed a significant increase in plasma ALA and eicosapentaenoic acid (EPA) concentrations over the course of this study. Subjects who received ground flaxseed in the 18-29-year-old group showed a statistically significant increase in their plasma ALA levels, and although there was a trend in the same direction for the 45-69-year-old subjects, this did not achieve statistical significance. The diets induced no major changes in platelet aggregation, plasma total cholesterol, low-density lipoprotein or high-density lipoprotein cholesterol levels in any of the groups. Younger subjects showed a decrease in triglyceride (TG) values compared with older subjects. There were no significant side effects that caused compliancy issues. CONCLUSION Subject age does not seem to be a major determining factor in influencing ALA absorption from a flaxseed-supplemented diet nor in the metabolism of ALA to EPA in the groups fed flaxseed oil. Concerns about side effects in older subjects administered a higher fiber load in a flaxseed-supplemented diet are not justified. However, younger but not older subjects showed a beneficial decrease in circulating TGs due to flaxseed supplementation.
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Sioen I, Hacquebard M, Hick G, Maindiaux V, Larondelle Y, Carpentier YA, De Henauw S. Effect of ALA-enriched food supply on cardiovascular risk factors in males. Lipids 2009; 44:603-11. [PMID: 19452183 DOI: 10.1007/s11745-009-3307-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Accepted: 04/22/2009] [Indexed: 10/20/2022]
Abstract
The outcome of a total dietary approach using a wide range of n-3 polyunsaturated fatty acids (PUFA) enriched food items on cardiovascular diseases called for further investigation. The study objective was to assess the effect of an ALA-enriched food supply on cardiovascular risk factors in healthy males. A dietary intervention (single-blind field trial with pre- and post-measurements) was performed with 59 healthy males in a Belgian prison. Over a period of 12 weeks they were supplied with an n-3 enriched diet (containing 6.5 g n-3 PUFA/day compared to 4 g n-3 PUFA/day in the standard diet) that was substituted for their regular diet, increasing mainly the alpha-linolenic acid intake (from 2.8 to around 5 g/day). The results indicated no impact on subjects waist circumference, weight and BMI or systolic blood pressure. In contrast, the diastolic blood pressure significantly decreased during the intervention period (from 74.6 +/- 8.2 to 71.7 +/- 10.1 mmHg; P < 0.02). Moreover, the HDL-cholesterol level increased in non-smoking participants (from 0.97 +/- 0.25 to 1.06 +/- 0.23 mmol/l; P < 0.03). In summary, the study demonstrated that enrichment of commonly eaten food items with n-3 fatty acids provides the opportunity to increase the n-3 fatty acid intake and to decrease the n-6/n-3 ratio which results in a decreasing diastolic blood pressure and an increase of HDL-cholesterol (in non-smokers).
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Affiliation(s)
- Isabelle Sioen
- Department of Public Health, Faculty of Medicine and Health Science, Ghent University, UZ-2 Blok A, De Pintelaan 185, 9000 Ghent, Belgium.
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Martini S, Thurgood J, Brothersen C, Ward R, McMahon D. Fortification of reduced-fat Cheddar cheese with n-3 fatty acids: Effect on off-flavor generation. J Dairy Sci 2009; 92:1876-84. [DOI: 10.3168/jds.2008-1871] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Pires C, Batista I, Fradinho P, Costa S. Utilization of Alkaline-Recovered Proteins from Cape Hake By-Products in the Preparation of Frankfurter-Type Fish Sausages. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2009. [DOI: 10.1080/10498850802629135] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Abstract
The long-chain (LC)n-3 PUFA content of pork, particularly DHA, can be increased by including 15 % PorcOmega®(a fortified tuna fishmeal product) in pig finisher diets. The aim of the present study was to see whether this enriched pork could deliver cardiovascular health benefits to consumers. In a double-blind intervention trial, thirty-three healthy adult volunteers (sixteen female and seventeen male) were randomised to consume eithern-3-enriched or regular (control) pork (a selection of five fresh cuts totalling 1000 g/week) for 12 weeks. Fasting blood samples were collected every 4 weeks and analysed for serum lipids, maximally stimulated thromboxane production and erythrocyte fatty acid composition. Then-3-enriched pork provided subjects with 1·3 g LCn-3 PUFA per week. Erythrocyte DHA levels rose 15 % in then-3 group and fell 5 % in the control group over 12 weeks (P = 0·001). Compared with the control group, serum TAG decreased to a greater extent in then-3 group (P = 0·02) and serum thromboxane production increased to a lesser extent (P = 0·004). Changes in the latter were inversely associated with changes in incorporation of DHA into erythrocytes (r − 0·54;P < 0·05). Thus the modest increases in LCn-3 PUFA intake resulting from regular consumption of enriched pork can improve cardiovascular risk factors.
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Cohen BE, Garg SK, Ali S, Harris WS, Whooley MA. Red blood cell docosahexaenoic acid and eicosapentaenoic acid concentrations are positively associated with socioeconomic status in patients with established coronary artery disease: data from the Heart and Soul Study. J Nutr 2008; 138:1135-40. [PMID: 18492846 PMCID: PMC2675885 DOI: 10.1093/jn/138.6.1135] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Traditional cardiac risk factors only partially explain the biological mechanisms by which persons of lower socioeconomic status (SES) have higher cardiovascular risk. Dietary factors, resulting in lower circulating levels of (n-3) fatty acids, may also contribute to the increased risk of cardiovascular disease (CVD) in patients with low SES. We tested whether low SES is associated with RBC levels of (n-3) fatty acids in patients with coronary heart disease. We performed a cross-sectional analysis of 987 adults with stable coronary artery disease (CAD) recruited from San Francisco area outpatient clinics. Four SES measures (household income, education, occupation, and housing status) were assessed by self-report. RBC fatty acid levels of 2 (n-3) fatty acids, docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA), were measured in venous blood samples from fasting subjects. Participants with lower household income, education, occupation, and housing status had lower RBC levels of (n-3) fatty acids (P < 0.001 for all 4 measures). In multivariable models, household income, education, and occupation remained strongly associated with DHA and EPA levels after adjustment for demographic factors, BMI, physical activity, statin use, and kidney function (P < 0.001 for all 3 measures). Housing status was not associated with DHA or EPA after multivariable adjustment. Among patients with CAD, 3 indicators of low SES, household income, education, and occupation, were strongly associated with lower RBC levels of (n-3) fatty acids. Our results raise the possibility that (n-3) fatty acids may be an important mediating factor in the association between low SES and CVD.
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Affiliation(s)
- Beth E. Cohen
- Department of Veterans Affairs Medical Center, San Francisco, CA 94121;, Division of General Internal Medicine, University of California, San Francisco, CA 94143;,To whom correspondence should be addressed. E-mail:
| | - Sachin K. Garg
- Emory University School of Medicine, Atlanta, GA 30322 and
| | - Sadia Ali
- Department of Veterans Affairs Medical Center, San Francisco, CA 94121
| | - William S. Harris
- Sanford School of Medicine, University of South Dakota, Sioux Falls, SD 50175
| | - Mary A. Whooley
- Department of Veterans Affairs Medical Center, San Francisco, CA 94121;, Division of General Internal Medicine, University of California, San Francisco, CA 94143
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Dose-dependent effects of docosahexaenoic acid-rich fish oil on erythrocyte docosahexaenoic acid and blood lipid levels. Br J Nutr 2008; 99:1083-8. [DOI: 10.1017/s000711450785344x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Consumption of long-chainn-3 PUFA, particularly DHA, has been shown to improve cardiovascular risk factors but the intake required to achieve benefits is unclear. We sought to determine the relationship between DHA intake, increases in erythrocyte DHA content and changes in blood lipids. A total of sixty-seven subjects (thirty-six male, thirty-one female, mean age 53 years) with fasting serum TAG ≥ 1·1 mmol/l and BMI>25 kg/m2completed a 12-week, randomized, double-blind, placebo-controlled parallel intervention. Subjects consumed 2, 4 or 6 g/d of DHA-rich fish oil (26 % DHA, 6 % EPA) or a placebo (Sunola oil). Fasting blood lipid concentrations and fatty acid profiles in erythrocyte membranes were assessed at baseline and after 6 and 12 weeks. For every 1 g/d increase in DHA intake, there was a 23 % reduction in TAG (mean baseline concentration 1·9 (sem0·1) mmol/l), 4·4 % increase in HDL-cholesterol and 7·1 % increase in LDL-cholesterol. Erythrocyte DHA content increased in proportion to the dose of DHA consumed (r0·72,P < 0·001) and the increase after 12 weeks was linearly related to reductions in TAG (r− 0·38,P < 0·01) and increases in total cholesterol (r0·39,P < 0·01), LDL-cholesterol (r0·33,P < 0·01) and HDL-cholesterol (r0·30,P = 0·02). The close association between incorporation of DHA in erythrocytes and its effects on serum lipids highlights the importance of erythrocyte DHA as an indicator of cardiovascular health status.
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Seasonal variability in intake of fish oil dietary supplements among inhabitants of Warsaw. Nutr Res 2008; 28:245-50. [DOI: 10.1016/j.nutres.2008.02.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2007] [Revised: 12/20/2007] [Accepted: 02/04/2008] [Indexed: 11/22/2022]
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Metcalf RG, Sanders P, James MJ, Cleland LG, Young GD. Effect of dietary n-3 polyunsaturated fatty acids on the inducibility of ventricular tachycardia in patients with ischemic cardiomyopathy. Am J Cardiol 2008; 101:758-61. [PMID: 18328835 DOI: 10.1016/j.amjcard.2007.11.007] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2007] [Revised: 11/07/2007] [Accepted: 11/07/2007] [Indexed: 10/22/2022]
Abstract
Increased consumption of fish and/or fish oil was associated with decreased risk of sudden cardiac death (SCD). The study aim was to evaluate the antiarrhythmic effect of dietary fish oil on the inducibility of ventricular tachycardia (VT) at high risk of SCD. Patients with coronary artery disease undergoing defibrillator implantation were recruited if sustained monomorphic VT could be induced by programmed extra stimuli at 2 cycle lengths. After the initial study, 12 patients consumed 3 g/d of encapsulated fish oil for approximately 6 weeks before a repeated electrophysiologic study. To control for fluctuations in the inducibility of VT, an additional 14 patients with no dietary manipulation were also studied. Aggressiveness of stimulation required to induce VT was ranked from least aggressive to most aggressive based on cycle length and number of extra stimuli, with noninducibility ranked highest. At the repeated electrophysiologic study, in the fish-oil group, 42% had no inducible VT, 42% required more aggressive stimulation to induce VT, 8% required identical stimulation, and 8% required less stimulation compared with 7%, 36%, 36%, and 21% in the control group, respectively. Overall, there was a change to noninducible or less inducible VT in the fish-oil group, but no change in the control group (p = 0.003 and p = 0.65, respectively; Wilcoxon's sign-rank test). In conclusion, dietary n-3 fatty acid supplementation decreased the inducibility of VT in patients at risk of SCD. These findings suggest that dietary fish oil can have an antiarrhythmic effect.
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Possibilities of Fisherman’s Friend Type Lozenges Fortification with Omega-3 LC PUFA by Addition of Microencapsulated Fish Oil. J AM OIL CHEM SOC 2008. [DOI: 10.1007/s11746-008-1203-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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46
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Schram LB, Nielsen CJ, Porsgaard T, Nielsen NS, Holm R, Mu H. Food matrices affect the bioavailability of (n−3) polyunsaturated fatty acids in a single meal study in humans. Food Res Int 2007. [DOI: 10.1016/j.foodres.2007.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Damsgaard CT, Frøkiaer H, Lauritzen L. The effects of fish oil and high or low linoleic acid intake on fatty acid composition of human peripheral blood mononuclear cells. Br J Nutr 2007; 99:147-54. [PMID: 17663804 DOI: 10.1017/s0007114507791900] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Dietary intake of 18: 2n-6 and 18: 3n-3 may affect endogenous production and incorporation of n-3 long-chain PUFA (LCPUFA) from fish oils (FO). This double-blinded controlled 2 x 2-factorial 8-week intervention investigates the effects of high and low 18: 2n-6 intake in combination with FO-supplementation on tissue fatty acid composition. Healthy young men (n 64) were randomized to capsules with FO or olive oil (control) (4.4 (2.0-5.6) ml/d) and to either sunflower oil and margarine (S/B) or rapeseed oil and a butter spread (R/K) to provide a high or a low 18: 2n-6 intake. Diet was measured by 4-d weighed dietary records at baseline, during and 8 weeks after the intervention and tissue incorporation as fatty acid composition of peripheral blood mononuclear cells (PBMC). The fat intervention gave a mean difference in the 18: 2n-6 intake of 7.3 g/d (95 % CI 4.6, 10.0) and a similar 18: 3n-3 intake in the groups. The R/K groups had a 0.2 % fatty acid (FA%) (95 % CI 0.0, 0.4, P = 0.02) higher content of 22: 5n-3 in the PBMC, a tendency of slightly higher 20: 5n-3 (P = 0.06), but no more 22: 6n-3 (P = 0.83) than the S/B groups. FO effectively raised the PBMC content of all n-3 LCPUFA (P < 0.001). The fat intervention did not markedly influence the effect of FO; the mean PBMC content of n-3 LCPUFA was 10.3 (sem 0.3) FA% in the FO+S/B group and 10.6 (sem 0.2) FA% in the FO+R/K group. In conclusion, increasing the 18: 2n-6 intake did not have any pronounced effect on incorporation of n-3 LCPUFA in PBMC, either alone or with simultaneous FO supplementation.
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Affiliation(s)
- Camilla T Damsgaard
- Department of Human Nutrition, Faculty of Life Sciences, Copenhagen University, DK-1958 Frederiksberg C, Denmark.
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Metcalf RG, James MJ, Gibson RA, Edwards JR, Stubberfield J, Stuklis R, Roberts-Thomson K, Young GD, Cleland LG. Effects of fish-oil supplementation on myocardial fatty acids in humans. Am J Clin Nutr 2007; 85:1222-8. [PMID: 17490956 DOI: 10.1093/ajcn/85.5.1222] [Citation(s) in RCA: 162] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Increased fish or fish-oil consumption is associated with reduced risk of cardiac mortality, especially sudden death. This benefit putatively arises from the incorporation of the long-chain n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) into cardiomyocyte phospholipids. OBJECTIVE The study examined the kinetics of incorporation of n-3 fatty acids into human myocardial membrane phospholipids during supplementation with fish oil and alpha-linolenic acid-rich flaxseed oil. DESIGN Patients with low self-reported fish intake (<1 fish meal/wk and no oil supplements) accepted for elective cardiac surgery involving cardiopulmonary bypass were randomly allocated to 1 of 6 groups: no supplement; fish oil (6 g EPA+DHA/d) for either 7, 14, or 21 d before surgery; flaxseed oil; or olive oil (both 10 mL/d for 21 d before surgery). Right atrial appendage tissue removed during surgery and blood collected at enrollment and before surgery were analyzed for phospholipid fatty acids. RESULTS Surgery rescheduling resulted in a range of treatment times from 7 to 118 d. In the fish-oil-treated subjects, accumulation of EPA and DHA in the right atrium was curvilinear with time and reached a maximum at approximately 30 d of treatment and displaced mainly arachidonic acid. Flaxseed oil supplementation yielded a small increase in atrial EPA but not DHA, whereas olive oil did not significantly change atrial n-3 fatty acids. CONCLUSION The results of the present study show that dietary n-3 fatty acids are rapidly incorporated into human myocardial phospholipids at the expense of arachidonic acid during high-dose fish-oil supplementation.
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Affiliation(s)
- Robert G Metcalf
- Rheumatology Unit, Royal Adelaide Hospital, Adelaide, Australia.
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Murphy KJ, Meyer BJ, Mori TA, Burke V, Mansour J, Patch CS, Tapsell LC, Noakes M, Clifton PA, Barden A, Puddey IB, Beilin LJ, Howe PRC. Impact of foods enriched withn-3 long-chain polyunsaturated fatty acids on erythrocyten-3 levels and cardiovascular risk factors. Br J Nutr 2007; 97:749-57. [PMID: 17349088 DOI: 10.1017/s000711450747252x] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Consumption of fish or fish oils rich in then-3 long chain PUFA EPA and DHA may improve multiple risk factors for CVD. The objective of this study was to determine whether regular consumption of foods enriched withn-3 long-chain PUFA can improven-3 long-chain PUFA status (erythrocytes) and cardiovascular health. Overweight volunteers with high levels of triacylglycerols (TG; >1·6 mmol/l) were enrolled in a 6-month dietary intervention trial conducted in Adelaide (n47) and Perth (n39), and randomised to consume control foods orn-3-enriched foods to achieve an EPA + DHA intake of 1 g/d. Test foods were substituted for equivalent foods in their regular diet. Erythrocyte fatty acids, plasma TG and other CVD risk factors were monitored at 0, 3 and 6 months. There were no significant differences between groups for blood pressure, arterial compliance, glucose, insulin, lipids, C-reactive protein (CRP) or urinary 11-dehydro-thromboxane B2(TXB2) over 6 months, even though regular consumption ofn-3-enriched foods increased EPA + DHA intake from 0·2 to 1·0 g/d. However, then-3 long-chain PUFA content of erythrocytes increased by 35 and 53 % at 3 and 6 months, respectively, in subjects consuming then-3-enriched foods. These increases were positively associated with measures of arterial compliance and negatively associated with serum CRP and urinary 11-dehydro-TXB2excretion. Sustainable increases in dietary intakes and erythrocyte levels ofn-3 long-chain PUFA can be achieved through regular consumption of suitably enriched processed foods. Such increases may be associated with reduced CV risk.
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Affiliation(s)
- Karen J Murphy
- Nutritional Physiology Research Centre, Division of Health Sciences, University of South Australia and School of Molecular & Biomedical Science, University of Adelaide, Adelaide, SA
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