Formulation Development of Flaxseed Oil Beads Containing ω-Fatty Acid

Tissue Omega-6/Omega-3 Fatty Acid Ratio and Risk for Coronary Artery Disease

Effects of flaxseed and flax oil diets in a rat-5/6 renal ablation model

Milk Production and Composition, Ovarian Function, and Prostaglandin Secretion of Dairy Cows Fed Omega-3 Fats

Omega-3 Fatty Acids for Maintenance of Remission of Crohn's Disease

Ultrasound-assisted preparation of flaxseed oil nanoemulsions coated with alginate-whey protein for targeted delivery of omega-3 fatty acids into the lower sections of gastrointestinal tract to enrich broiler meat

A randomized trial of the effects of ezetimibe on the absorption of omega-3 fatty acids in cardiac disease patients: A pilot study

Omega-3 fatty acids represent essential nutrients for animals and humans. The most common plant-derived precursor for the bioactive long-chain omega-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) is alpha-linolenic acid (ALA). ALA is the only omega-3 fatty acid available in vegetable oils that are produced in substantial volumes. However, conversion of ALA to EPA and DHA is inefficient in humans due to a metabolic bottleneck represented by the Δ6-desaturase enzyme that converts ALA to stearidonic acid (SDA), the first intermediate in the metabolic pathway that converts ALA to EPA and DHA. SDA is present in small amounts in the oil of some herbs such as borage oil or hemp oil; however, these oils are not available in large quantities. Compared to the main vegetable oils that contain ALA, a more efficient source for long-chain omega-3 fatty acids is provided by marine cold water fish that contain substantial amounts of EPA and DHA in membrane and storage lipids. These fish do not have the metabolic capacity to synthesize omega-3 fatty acids from central intermediates of their metabolism themselves. Instead they acquire EPA and DHA through their food chain that is founded on marine algae as primary producers. Unfortunately the human consumption of fish is limited by an increasingly finite supply of marine stocks, by encumbrance of some marine fish with environmental toxins, and by dietary preferences in the Western cultures that tend to avoid fish as food source. This chapter reviews the discovery and relevance of omega-3 fatty acids as an essential human nutrient, the limitations of the marine ecosystem in providing the bioactive omega-3 fatty acids EPA and DHA in sufficient quantities for human consumption, and the development of SDA soybeans that are soybeans with substantially improved omega-3 profile. SDA soybeans contain 20 % of their total fatty acids as SDA. As such, they represent a much more efficient source of omega-3 fatty acids than traditional vegetable oils that contain ALA only. SDA soybean oil has been shown to perform similar as conventional soybean when incorporated into human foods. In contrast to specialty oils, production of SDA soybean oil is more economical and can easily be ramped up to produce large quantities. In contrast to marine omega-3 sources SDA soybean oil is free of environmental toxins and not tied to the volume limitations of the marine ecosystem. This positions SDA soybean oil as an environmentally friendly sustainable source of essential omega-3 fatty acids for the increasing demand of a growing human population.

There is growing evidence that inflammation is an important mediator of pathophysiology in bipolar disorder. The omega-3 (n-3) and omega-6 (n-6) polyunsaturated fatty acid (PUFA) metabolic pathways participate in several inflammatory processes and have been linked through epidemiologic and clinical studies to bipolar disorder and its response to treatment. We review the data on PUFAs as biomarkers in bipolar disorder and n-3 PUFA used as treatment for bipolar disorder. PubMed and CINAHL were searched for articles on PUFA and bipolar disorder published in the English language through November 6, 2013, with an updated search conducted on August 20, 2015. Keywords searched included omega 3 fatty acids and bipolar disorder, omega 3 fatty acids and bipolar mania, omega 3 fatty acids and bipolar depression, omega 3 fatty acids and mania, omega 3 fatty acids and cyclothymia, omega 3 fatty acids and hypomania, fatty acids and bipolar disorder, essential fatty acids and bipolar disorder, polyunsaturated fatty acids and bipolar disorder, DHA and bipolar disorder, and EPA and bipolar disorder. Studies selected measured PUFAs as biomarkers or introduced n-3 PUFA as treatment. We identified 17 relevant human clinical articles that either compared PUFA levels between a bipolar disorder group and a control group or used a PUFA intervention to treat depression or mania in bipolar disorder. Human studies suggest low n-3 red blood cell PUFA concentrations and correlations with clinical severity in studies of plasma concentrations in symptomatic bipolar disorder. Results of published n-3 PUFA dietary supplementation trials for bipolar disorder indicate efficacy in treatment for mania or depression in 5 of 5 open-label trials, efficacy in treatment of depression in 1 of 7 randomized controlled trials, and a signal for treatment of depression in 1 meta-analysis. Biomarker studies of PUFA and treatment studies of n-3 PUFA in bipolar disorder show promise for indicating a way forward in the study of PUFA in bipolar disorder. Investigation of the intake and metabolism of the n-3 and n-6 PUFA when supplementation is provided in treatment trials might offer clues for identification of when and how PUFA may be important for treatment in bipolar disorder.

Introduction As noted earlier (Chapter 5), an increase in Bipolar II Disorder (BP II) is suggested. Any prevalence increase could be artefactual, reflecting changes in attribution, definition, destigmatisation, help-seeking or other factors. Alternately, there may have been a real increase and numerous determinants have been proposed, including genetic factors, greater use of illicit drugs and many social and environmental factors. In relation to the last, there has been considerable interest in a dietary contribution, particularly involving omega-3 fatty acids. What are omega-3 fatty acids? Omega-3 ( n -3) fatty acids are long-chain polyunsaturated fatty acids (PUFAs) found in various plant and marine life. The marine-based n -3 PUFAs primarily consist of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), and appear to be highly biologically active. In contrast, plant-based n -3 PUFAs, from flaxseed, walnuts and canola oil, are usually in the form of the parent n -3 PUFA, alpha-linolenic acid (ALA). Although dietary ALA can be endogenously converted to EPA and DHA (see the metabolic pathways in Figure 11.1), this process occurs inefficiently, with only 10–15% of ALA being metabolised in this way. The history of n-3 PUFAs In the last 150 years, rapid expansion in western populations has been associated with a change in diet, with n -3 PUFAs from fish, wild game and plants being replaced by saturated fats from domestic animals and omega-6 ( n -6) PUFAs from common vegetable oils (corn, safflower and soybean) and other sources such as wheat germ.

Development of meat spread with omega-3 fatty acids derived from flaxseed oil for the elderly: Physicochemical, textural, and rheological properties

Over the past 100 years, changes in the food supply in Western nations have resulted in alterations in dietary fatty acid consumption, leading to a dramatic increase in the ratio of omega-6 (omega6) to omega3 polyunsaturated fatty acids (PUFA) in circulation and in tissues. Increased omega6/omega3 ratios are hypothesized to increase inflammatory mediator production, leading to higher incidence of inflammatory diseases, and may impact inflammatory gene expression. To determine the effect of reducing the omega6/omega3 ratio on expression of inflammatory pathway genes in mononuclear cells, healthy humans were placed on a controlled diet for 1 week, then given fish oil and borage oil for an additional 4 weeks. Serum and neutrophil fatty acid composition and ex vivo leukotriene B(4) production from stimulated neutrophils were measured at the start and end of the supplementation period and after a 2-week washout. RNA was isolated from mononuclear cells and expression of PI3K, Akt, NFkappaB, and inflammatory cytokines was measured by real-time PCR. A marked increase was seen in serum and neutrophil levels of long-chain omega3 PUFA concomitant with a reduction in the omega6/omega3 PUFA ratio (40%). The ex vivo capacity of stimulated neutrophils to produce leukotriene B(4) was decreased by 31%. Expression of PI3Kalpha and PI3Kgamma and the quantity of PI3Kalpha protein in mononuclear cells was reduced after supplementation, as was the expression of several proinflammatory cytokines. These data reveal that PUFA may exert their clinical effects via their capacity to regulate the expression of signal transduction genes and genes for proinflammatory cytokines.

Background: Omega-3 fatty acid supplementation has been shown to help maintain muscle function and reduce muscle soreness after exercise-induced muscle damage. However, the relationship between the dietary and biological status of omega-3 fatty acids in rugby players remains unclear. Objectives: This study aimed to investigate the connection between the dietary and biological status of omega-3 fatty acids in university rugby players. Methods: We conducted a cross-sectional study involving university rugby players and age-matched sedentary controls. We assessed diets, including omega-3 and omega-6 polyunsaturated fatty acids, using self-administered dietary questionnaires. Whole blood lipidomics was performed before and after a single training session. Results: The rugby group (n = 29) had significantly higher intakes of omega-3 and omega-6 fatty acids compared to the control group (n = 31). While the blood omega-6 relative concentration did not differ between the groups, the rugby group had lower omega-3 fatty acid levels than the control group (4.4 ± 1.1 vs. 6.2 ± 1.8%). Approximately 48% of rugby players had an omega-3 index (O3i) considered as high risk for cardiovascular disease, and 52% were classified as intermediate risk. None of the players had a low-risk O3i. A single training session had an impact on the omega-3 and omega-6 metabolic pathways. Conclusions: Despite having a higher omega-3 fatty acid intake than controls, rugby football players may still be deficient in omega-3 fatty acids. Further nutritional interventions are needed to address these issues.

The omega (omega)-3 fatty acids are essential nutrients, explained by the absence of a Delta-15 desaturase in mammalian cells. The omega-3 fatty acids are found in the diet as alpha-linolenic acid (18:3omega-3) and eicosapentaenoic acid (20:5omega-3), as well as docosahexaenoic acid (DHA), with different functions of each of the omega-3 fatty acids in different cells. One essential role of the omega-3 fatty acids is fulfilled by the 22 carbon DHA (22:6omega-3). Depletion of DHA from brain and retina interferes with normal neurogenesis and neurological function, and visual signaling pathways. Observation and intervention studies with pregnant and lactating women, and with infants fed some formulas show that dietary DHA is associated with higher scores on tests of visual and neural development in infants and children. The estimated average requirement and variability in requirement among individuals both of which are needed to set dietary recommended intakes (DRIs) for the different omega-3 fatty acids are unknown. However, because omega-3 fatty acids are essential, adequate intakes to minimize risk of poor neural development and function can be justified, but dose-response data to provide a safe upper limit with different omega-6 fatty acid intakes are needed. Dietary recommendations do affect the food supply and supplements and are used in labeling, all impacting population health. When scientific information is incomplete, consideration must be given to the implications of recommendations that focus on individual nutrients, rather than dietary patterns such as breast-feeding and consuming fish that promote health and minimize disease risk.

Introduction and aims: Taking into account the sanitary importance of the contribution of omega-3 and omega-6 fatty acids and given the scarcity of studies on the subject in Spanish collectives, the aims of the present study were to determine the intake of these fatty acids, their adequacy to the established nutritional goals and food sources in a representative sample of the Spanish population. Methods: A group of 1,068 adults (521 men and 547 women) with ages ranging from 17 and 60 years were studied. The subjects were selected from ten Spanish provinces to constitute a representative sample of the nationwide population. The intakes of polyunsaturated fatty acids (PUFA), omega-3 fatty acids, α-linolenic acid (ALA), eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), omega-6 fatty acids, linoleic acid (LA) and arachidonic acid, expressed in g/day and percentage of the total energy intake, were determined by using a food record for 3 consecutive days, including a Sunday. Personal, anthropometric and sanitary data of individuals were also studied. Results and Discussion: The intake of total fat and saturated fat was higher than the established as advisable in 89.2% and 93.3% of the studied subjects, respectively. The opposite was observed for the intake of PUFA, where an insufficient contribution was most frequent (79.2% of the subjects have an intake less than the 6% of the energy). The contribution of omega-3 fatty acids (1.85±0.82 g/day) is particularly low, and provides less than 1% of the energy in 85.3% of subjects. Specifically the ALA (1.40±0.55 g/day) did not exceed the 0.5% of energy in 53.7% of the cases, and the EPA + DHA (0.55±0.58 g/day) did not exceed 0.5 g/day in 64.6%. On the other hand, the contribution of omega-6 was more appropriate (10.95 ± 3.79 g/day), specifically for LA intake (10.77 ± 3.76 g/day), representing less than 3% of the energy in the 25.5% of subjects. The main food sources for omega-3 were fish, followed by meat, dairy and fats/oils, whereas for omega-6 were fats/oils, meat and cereals. Taking into account that the low consumption of omega-3 fatty acids is noteworthy in the studied group, especially for EPA + DHA, the influence of the fish Resumen Introduccion y Objetivos: Teniendo en cuenta la importancia sanitaria del aporte de acidos grasos omega-3 y omega-6, y ante la escasez de estudios sobre el tema en colectivos espanoles, se plantea la conveniencia de conocer la ingesta de estos acidos grasos, su adecuacion a los objetivos nutricionales marcados y sus fuentes alimentarias en una muestra representativa de la poblacion espanola. Metodos: Se ha estudiado un colectivo de 1068 adultos (521 varones y 547 mujeres) de 17 a 60 anos, seleccionados en diez provincias espanolas, que constituyen una muestra representativa de la poblacion, a nivel nacional. Se determino la ingesta de acidos grasos poliinsaturados (AGP), acidos grasos omega-3, α-linolenico (ALA), acido eicosapentaenoico (EPA) y docosahexaenoico (DHA), acidos grasos omega-6, acido linoleico (LA) y araquidonico, en g/dia y en porcentaje de la energia, utilizando un “Registro del consumo de alimentos” durante 3 dias consecutivos, inclu

Flaxseed is also known as linseed which is derived from linseed plant. This has in folk medicine been used as Fiber and oil for health benefits in health and nutrition in treating a number of diseases. Flaxseed oil contains unsaturated fatty acids such as omega-3 fatty acids, α linolenic acid (ALA), oleic acid and palmitic and stearic acid. The various uses of flaxseed oil include cardiovascular health, diabetes, weight management, cancer, digestive problems, anti-inflammatory properties, high blood pressure, hormonal imbalance, obesity, neurological disorders and others. Flaxseed oil also aids in strengthening the immune system. It has also become more popular due to its benefits to the health of individuals. Flaxseed biochemical composition includes protein (20-30%), Dietary Fibers, Lignans, and Minerals. It is used in bakery products as food ingredient flaxseed oil. Flaxseed oil can also be applied in the formulation of skin care products for moisturizing, anti-aging and skin conditions. It acts as an anti-inflammatory and has positive effects on wound healing that impacts the size of wounds on burn patients. It can also be used as a Dietary Supplement as it is a powerful supplement which can be beneficial in so many health disorders. The concentration and potential effect of flaxseed oil depend on research done on animals and humans recently and the uses in commerce. This review will summarize the preclinical and clinical studies investigating flaxseed oil and its potential uses and therapeutic effects for various diseases. Thus, the primary source of data analyzed in the present paper was the literature review based on articles that concerned the topic of flaxseed oil and its impact on the human body. Information was obtained from preclinical studies, RCTs, and meta-analyses in the peer-reviewed literature.