Metabolic Benefits of Plant-based N-3 Polyunsaturated Fatty Acids on Brown Thermogenesis PDF Download

Author: Kyung Ho Park
Publisher:
ISBN:
Category :
Languages : en
Pages : 90

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Book Description
There are two essential fatty acids for humans, a-linolenic acid (ALA) and linoleic acid (LA), which should be taken from foods to maintain health. Once incorporated into cells, ALA and LA, which are omega-3 poly unsaturated fatty acid (n-3 PUFA) and n-6 PUFA respectively, undergo elongation and desaturation to generate longer and more unsaturated fatty acids influencing inflammation and immunological responses. Numerous studies showed a dietary reduction of n-6/n-3 PUFA ratio improves cardiovascular health, inflammation, and insulin resistance. Fish oil, the main resource for n-3 PUFA, is shown to increase these health benefits. In our lab, we investigated the efficacy of ALA-enriched butter (n3Bu) as an alternative to fish oil for n-3 PUFA. n3Bufed mice showed increased bioconversion of ALA to long-chain n-3 PUFA (LC n-3 PUFA) and attenuated high fat (HF) diet-induced insulin resistance and inflammation. Besides, these health benefits, n-3 PUFA is shown to improve obesity and its related diseases by regulating lipid metabolism in both white adipose tissue (WAT) and brown adipose tissue (BAT). Fish oil abundant with n-3 PUFA promotes BAT formation and increases its thermogenic activity in cold acclimation. However, the impact of ALAenriched agricultural products on the BAT function is unknown. In this study, we investigated the effect of ALA-biofortified butter (n3Bu) on lipid metabolism and thermogenic functions in BAT. Intake of n3Bu significantly reduced the whitening of BAT and increased the thermogenesis in response to acute-cold treatment. Consumption of n3Bu promoted bioconversion of LC n-3 PUFA, fatty acid elongation and desaturation, and mitochondrial biogenesis. Taken together, our results support that ALA-biofortified butter is a novel source of n-3 PUFA that potentiates the BAT thermogenic function.

Author: Mahabaleshwar V. Hegde
Publisher: Humana Press
ISBN: 331940458X
Category : Medical
Languages : en
Pages : 611

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Book Description
This volume argues for the importance of essential nutrients in our diet. Over the last two decades there has been an explosion of research on the relationship of Omega-3 fatty acids and the importance of antioxidants to human health. Expert authors discuss the importance of a diet rich in Omega-3 Fatty acids for successful human growth and development and for the prevention of disease. Chapters highlight their contribution to the prevention and amelioration of a wide range of conditions such as heart disease, diabetes, arthritis, cancer, obesity, mental health and bone health. An indispensable text designed for nutritionists, dietitians, clinicians and health related professionals, Omega-3 Fatty Acids: Keys to Nutritional Health presents a comprehensive assessment of the current knowledge about the nutritional effects of Omega-3 fatty acids and their delivery in foods.

Author: Jennifer Emily Enns
Publisher:
ISBN:
Category :
Languages : en
Pages : 0

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Book Description
Dietary fat has long been implicated in the etiology of metabolic and cardiovascular disease, and both the amount of fat and the fatty acid composition of the diet play a role in disease progression. Although national health organizations have set guidelines for the recommended intake of dietary fats, questions remain regarding the optimal dietary lipid profile for maintaining health and improving disease conditions. Whether certain types of fatty acids from plant-based oils can improve metabolic and vascular disease has been studied and debated, but not fully determined. In this study, we investigated the role of dietary fatty acids from plant-based oils, and examined their effects on metabolic and vascular disease parameters. Obese fa/fa Zucker rats were fed a diet containing flaxseed oil, which resulted in smaller adipocytes and decreased adipose tissue T-cell infiltration. Obese-prone Sprague Dawley rats were fed high-fat diets with different proportions of mono- and polyunsaturated fats. Changes were observed in adipose tissue levels of fatty acid synthase, adiponectin and fatty acid receptors GPR41 and GPR43, but other metabolic and inflammatory mediators in adipose tissue and serum remained stable. A systematic review and meta-analysis on the impact of n3 fatty acids on major cardiovascular endpoints showed that little evidence exists to support their role in peripheral arterial disease. Then again, very few studies on this topic have been conducted. To address this research gap, a clinical trial was designed to investigate the effects of a dietary intervention on blood vessel properties in people with peripheral arterial disease. Participants in the Canola-PAD Study consumed 25 g/day of canola oil or a Western diet oil mixture as part of their usual diet for 8 weeks. Although the intervention altered phospholipid fatty acids, vascular function, the lipid profile and inflammatory markers stayed relatively stable. Overall, this research demonstrates that dietary fatty acids from plant-based oils can be immunomodulatory, but at the physiological doses tested they are not potent mediators of functional changes in obesity or vascular physiology.

Author: Artemis P. Simopoulos
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805576404
Category : Health & Fitness
Languages : en
Pages : 188

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Book Description
Studies on the evolutionary aspects of diet and molecular studies included in this volume indicate that human beings evolved on a diet that was balanced in the essential fatty acids (EFA). In fact, the ratio of omega-6/omega-3 EFA was 1/1 whereas present day diets in both developed and developing countries have a much higher ratio, between 5/1 and 50/1. Additional studies show that a high ratio of omega-6/omega-3 EFA is detrimental to health and may lead to the development of chronic diseases. Improving the dietary ratio by decreasing the omega-6 fatty acids and increasing the omega-3 fatty acids is essential for brain function and for the management of cardiovascular disease, arthritis and cancer. A ratio of 4/1 or less leads to lower dosage and to the reduction of adverse effects of drugs. This volume should be of interest to a large and varied audience of researchers in academia, industry, and government; cardiologists, geneticists, immunologists, neuroscientists, and cancer specialists; as well as nutritionists, dietitians, food scientists, agriculturists, economists and regulators.

Author: Graham C. Burdge
Publisher: Elsevier
ISBN: 012811231X
Category : Science
Languages : en
Pages : 256

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Book Description
Polyunsaturated Fatty Acid Metabolism explores a number of major roles of PUFA in the body, including its role as a component of cell membranes and how it provides substrates for the synthesis of lipid second messengers. Recent studies are unraveling the effect of interactions between diet and endocrine factors and genetic and epigenetic variation on the regulation of PUFA biosynthesis in animals. Together, these recent findings provide novel insights into the impact of differences in PUFA supply on health. This book captures these findings in a manner that marks the state-of-the-art, placing them in the wider context of PUFA metabolism and nutritional science. Users will find a comprehensive discussion on the topic that presents the contributions of leading researchers who combine their knowledge to create a cohesive academic resource for researchers, those involved in production, and health policymakers. Provides a comprehensive view of polyunsaturated fatty acid metabolism Describes underlying metabolism on lipids that include polyunsaturated fatty acids Includes discussions on recent findings on the genetic and epigenetic regulation of polyunsaturated fatty acid metabolism

Author: Graeme Milligan
Publisher: Springer
ISBN: 3319506935
Category : Medical
Languages : en
Pages : 258

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Book Description
This book highlights the important role free fatty acids (FFA) play as potential drug targets. While FFA have long been considered byproducts of cell metabolism, they are now recognized as ligands that regulate cell and tissue function via G-protein-coupled receptors. At least three receptors have been identified for which FFA appear to be the endogenous ligands.

Author: James M. Ntambi
Publisher: Academic Press
ISBN: 0128194057
Category : Science
Languages : en
Pages : 566

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Book Description
Lipid Signaling and Metabolism provides foundational knowledge and methods to examine lipid metabolism and bioactive lipid signaling mediators that regulate a broad spectrum of biological processes and disease states. Here, world-renowned investigators offer a basic examination of general lipid, metabolism, intracellular lipid storage and utilization that is followed by an in-depth discussion of lipid signaling and metabolism across disease areas, including obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders. Throughout, authors demonstrate how expanding our understanding of lipid mediators in metabolism and signaling enables opportunities for novel therapeutics. Emphasis is placed on bioactive lipid metabolism and research that has been impacted by new technologies and their new potential to transform precision medicine. Provides a clear, up-to-date understanding of lipid signaling and metabolism and the impact of recent technologies critical to advancing new studies Empowers researchers to examine bioactive lipid signaling and metabolism, supporting translation to clinical care and precision medicine Discusses the role of lipid signaling and metabolism in obesity, diabetes, fatty liver disease, inflammation, cancer, cardiovascular disease and mood-related disorders, among others

Author: Anne-Marie Tully
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Author: Paul A Spagnuolo
Publisher: Royal Society of Chemistry
ISBN: 1839160586
Category : Medical
Languages : en
Pages : 252

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Book Description
Nutraceuticals is a broad umbrella term used to describe any product derived from food sources with extra health benefits in addition to the basic nutritional value found in foods. This book is a comprehensive look at two themes in the area: technical and biological considerations. Technical considerations include an in-depth look at the process of bioactive identification and extraction and factors controlling bioactive concentrations in food. It also includes details of how these products are regulated and the steps necessary to utilize these products in human populations. Biological considerations include looking at how these products can be used in the prevention and treatment of chronic diseases, and a discussion on the process of formulations and how these influence bioavailability. This will be the first book to comprehensively examine the entire process of nutraceutical development from food to supplement creation and all the important considerations in between. This serves as an excellent and up-to-date reference for food scientists, food chemists, researchers in nutraceuticals and human nutrition.

Author: Alison Haller Keenan
Publisher:
ISBN: 9781267657121
Category :
Languages : en
Pages :

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Book Description
Consumption of omega-3 fatty acids (n3 FAs) has gained wide-spread popularity as a consequence of their reported ability to improve multiple health outcomes. The benefits of n3 FAs have been linked to competition with omega-6 fatty acids (n6 FAs) in metabolism; however, the mechanisms of action of n3 and n6 FAs are not fully understood. Targeted metabolomics were utilized in 3 studies to investigate the role of n3 and n6 FAs in metabolism. Specifically, quantification of oxygenated lipid metabolites (oxylipins) from both n3 and n6 fatty acids were measured to explore their production based on dietary consumption. First, a human study was conducted where n3 FAs were given as a supplement, with measurements of fatty acids and plasma oxylipins before and after the 4 week trial. Following 4 weeks of n3 FAs supplementation, n3 FAs increased in red blood cells (RBCs), platelets and plasma at the expense of n6 FAs. Oxylipins derived from n3 FAs increased, but did not significantly decrease oxylipins from n6 FAs. The second study was in Syrian hamsters fed a diet containing a 20:1 ratio of n6:n3 FAs in a low fat (LF) and a high fat (HF) diet over 14 weeks. LF animals increased fatty acid synthesis, and the n6:n3 ratio was increased in plasma in LF animals relative to HF animals. Oxylipins derived from n3 FAs were increased in HF animals. The third study explored cyclooxygenase (COX) inhibition in HF diets and HF diets supplemented with n3 FAs. Plasma oxylipin profiles of animals supplemented with n3 FAs were similar to animals on a high fat diet supplemented with aspirin. In sum, these three studies provide insight into the impact of n3 FAs on fat metabolism, which include increased n3 FAs incorporation into blood compartments, decreased n6 FAs in plasma and increased plasma n3 derived oxylipins. Physiological effects of n3 derived oxylipins are not yet fully elucidated, but documentation of their occurrence and abundance is a step towards understanding their role in health outcomes associated with n3 FAs intake.