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omega 6

Mariane Curado Borges, Fabiana de Miranda Moura Dos Santos, Rosa Weiss Telles, Marcus Vinícius Melo de Andrade, Maria Isabel Toulson Davisson Correia, Cristina Costa Duarte Lanna
BACKGROUND: Studies have shown that omega-3 fatty acids reduce the concentrations of eicosanoids, cytokines, chemokines, C-reactive protein (CRP) and other inflammatory mediators. OBJECTIVE: To investigate the effects of omega-3 fatty acids on circulating levels of inflammatory mediators and biochemical markers in women with systemic lupus erythematosus (SLE). METHODS: Experimental clinical study (clinical trial: NCT02524795); 49 women with SLE (ACR1982/1997) were randomized: 22 to the omega-3 group (daily intake of 1080mg EPA+200mg DHA, for 12 weeks) and 27 to the control group...
September 22, 2016: Revista Brasileira de Reumatologia
Bernardo Duarte, Maria Teresa Cabrita, Carla Gameiro, Ana Rita Matos, Rita Godinho, João Carlos Marques, Isabel Caçador
A profound analysis of A. tripolium photochemical traits under salinity exposure is lacking in the literature, with very few references focusing on its fatty acid profile role in photophysiology. To address this, the deep photochemical processes were evaluated by Pulse Amplitude Modulated (PAM) Fluorometry coupled with a discrimination of its leaf fatty acid profile. Plants exposed to 125-250 mM NaCl showed higher photochemical light harvesting efficiencies and lower energy dissipation rates. under higher NaCl exposure, there is evident damage of the oxygen evolving complexes (OECs)...
October 17, 2016: Plant Biology
Kate J Bowen, William S Harris, Penny M Kris-Etherton
Early secondary prevention trials of fish and omega-3 polyunsaturated fatty acid (PUFA) capsules reported beneficial effects on cardiovascular disease (CVD) outcomes, including all-cause mortality and sudden cardiac death. These clinical findings, as well as observational and experimental data, demonstrated that omega-3 PUFAs reduced the risk of coronary outcomes and overall mortality and were the basis for recommendations made in the early 2000s to increase omega-3 PUFA intake. In the last 6 years, however, results from both primary and secondary prevention trials have generally failed to show a beneficial effect of omega-3 PUFA supplementation, bringing current recommendations into question...
November 2016: Current Treatment Options in Cardiovascular Medicine
Sonika Ahlawat, Sachinandan De, Priyanka Sharma, Rekha Sharma, Reena Arora, R S Kataria, T K Datta, R K Singh
Hybrid sterility or reproductive isolation in mammals has been attributed to allelic incompatibilities in a DNA-binding protein PRDM9. Not only is PRDM9 exceptional in being the only known 'speciation gene' in vertebrates, but it is also considered to be the fastest evolving gene in the genome. The terminal zinc finger (ZF) domain of PRDM9 specifies genome-wide meiotic recombination hotspot locations in mammals. Intriguingly, PRDM9 ZF domain is highly variable between as well as within species, possibly activating different recombination hotspots...
October 15, 2016: Molecular Genetics and Genomics: MGG
Graham Mazereeuw, Nathan Herrmann, Ana C Andreazza, Gustavo Scola, David W L Ma, Paul I Oh, Krista L Lanctôt
BACKGROUND: Antidepressant efficacy of omega-3 polyunsaturated fatty acid (n-3 PUFA) treatment in coronary artery disease (CAD) patients remains unpredictable. N-3 PUFA can mitigate oxidative stress, which is common in CAD and may contribute to depressive symptoms. This study investigated whether greater pre-treatment oxidative stress, measured by the ratios of late-stage lipid peroxidation markers (malondialdehyde [MDA], 4-hydroxy-2-nonenal [4-HNE], and 8-isoprostane [8-ISO]) to an early-stage marker (lipid hydroperoxides [LPH]), predicted n-3 PUFA antidepressant benefits in CAD...
October 11, 2016: Brain, Behavior, and Immunity
A Burdzinska, B Dybowski, W Zarychta-Wisniewska, A Kulesza, R Zagozdzon, Z Gajewski, L Paczek
Cell therapy is emerging as an alternative treatment of stress urinary incontinence. However, many aspects of the procedure require further optimization. A large animal model is needed to reliably test cell delivery methods. In this study we aim to determine suitability of the goat as an experimental animal for testing intraurethral autologous cell transplantation in terms of urethral anatomy and cell culture parameters. The experiments were performed in 12 mature/aged female goats. Isolated caprine muscle derived cells (MDC) were myogenic in vitro and mesenchymal stem cells (MSC) population was able to differentiate into adipo-, osteo- and chondrogenic lineages...
October 14, 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
M Lambert, V Niehaus, C Correll
This review aims to describe the importance of i) detecting individuals at clinical high-risk for psychosis (schizophrenia) or bipolar disorder, especially in children and adolescents, in order to enable early intervention, and ii) evaluating different intervention strategies, especially pharmacotherapy, during the subsyndromal or "prodromal" stages of these severe and often debilitating disorders. The different approaches regarding the psychotic and bipolar clinical high-risk state are discussed, including reasons and evidence for early (pharmacological) intervention and risks of treatment vs...
October 13, 2016: Pharmacopsychiatry
Renata Ottes Vasconcelos, Silvina Odete Bustos, Juliana Ramos Gonzalez, Camila Wink Soares, Makely Daiane Barbosa, Roger Chammas, Ana Paula de Souza Votto, Gilma Santos Trindade
Omega 3 polyunsaturated fatty acids (omega 3 PUFA) are attracting a growing interest as potential adjuvants for cancer prevention and treatment. There is evidence about photoprotection in normal cells, but few previous studies have evaluated it in tumoral cells. Therefore, this study investigated the effect of α-linolenic acid (ALA) in normal murine melanocytic cells (Melan-a) and in tumoral murine melanocytic cells (B16F10) exposed to UVB radiation. Our results showed that ALA exhibited an antiproliferative effect in B16F10 cells, and had minimal effect in Melan-a cells, as demonstrated by MTT assay...
October 3, 2016: Journal of Photochemistry and Photobiology. B, Biology
Ivor B Asztalos, Joi A Gleason, Sakine Sever, Reyhan Gedik, Bela F Asztalos, Katalin V Horvath, Michael L Dansinger, Stefania Lamon-Fava, Ernst J Schaefer
BACKGROUND: Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), the primary omega-3 fatty acids in fish oil, have been shown to reduce cardiovascular disease (CVD) risk. OBJECTIVE: This study aimed to examine the independent effects of EPA and DHA on lipid and apolipoprotein levels, as well as on inflammatory biomarkers of CVD risk, using doses often used in the general population. DESIGN: A blinded, randomized 6-week trial was performed in 121 healthy, normolipidemic subjects who received olive oil placebo 6g/d, EPA 600mg/d, EPA 1800mg/d, or DHA 600mg/d...
November 2016: Metabolism: Clinical and Experimental
Rahul Chaudhary, Katayoon Saadin, Kevin P Bliden, William S Harris, Bao Dinh, Tushar Sharma, Udaya S Tantry, Paul A Gurbel
INTRODUCTION: We sought to determine the associations between plasma eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) levels and various cardiovascular risk factors and with the use of fish oil supplements (FOS). PATIENTS AND METHODS: Patients with suspected coronary artery disease (CAD) undergoing cardiac catheterization (n=433) were studied. Serum fatty acid (FA) composition, the concentrations of lipids and biomarkers of oxidative stress, and dietary/lifestyle factors were measured...
October 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
Michael Levine, John Flores, Seth A Seabury, Stephen Sanko, Marc Eckstein
BACKGROUND: The public commonly calls 911 for unintentional ingestions, rather than calling the local poison center. By utilizing a series of scripted questions, 911 dispatchers in Los Angeles determine if an ingestion meets "omega-1" classification. Under such circumstances, the regional poison center is contacted prior to dispatch of paramedics. If the poison center advises that the patient can remain at home, EMS is not dispatched and the patient is followed at home by the poison center...
October 7, 2016: Journal of Medical Toxicology: Official Journal of the American College of Medical Toxicology
Agata Kornek, Alicja Kucharska, Katarzyna Kamela
INTRODUCTION: Research increasingly provide evidence that vegetarian diet can have a positive impact on health. The aim of this study was to analyze the fatty acid profile of vegetarian and non-vegetarian diet and prove which of them is more optimal in the context of some diet-related diseases prevention. MATERIAL AND METHODS: The study involved 83 women (47 vegetarians and 36 non-vegetarians). Estimates of the supply of individual fatty acids in the diet was based on analysis of 3-day dietary records (calculations in a computer program DIETA 5)...
2016: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
Xi-Xi He, Xiao-Li Wu, Ren-Pin Chen, Chao Chen, Xiao-Gang Liu, Bin-Jiao Wu, Zhi-Ming Huang
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) is a clinical syndrome with the main characteristic of diffuse liver cells with fatty changes. The clinical evolution of NAFLD includes simple non-alcoholic fatty liver, non-alcoholic steatohepatitis (NASH), liver fibrosis and cirrhosis, and even hepatocellular carcinoma. METHODS AND FINDINGS: We conducted this review to identify the effectiveness of omega-3 polyunsaturated fatty acids (ω-3 PUFA) in NAFLD. We searched PubMed, Cochrane Library and Embase...
2016: PloS One
Karoline Lukaschek, Clemens von Schacky, Johannes Kruse, Karl-Heinz Ladwig
BACKGROUND: Omega-3 polyunsaturated fatty acids (PUFA) may affect the risk of cognitive decline in older adults. METHODS: Cross-sectional analysis was conducted among 720 (50.4% women) participants aged 68-92 years (mean age: 77.6, SD ±6.2) of the population-based KORA-Age study. Eicosapentaenoic acid and docosahexaenoic acid (omega-3 index) were measured in erythrocytes as a percentage of total fatty acids. The categories low (<5.7), intermediate (5.7-6.8), and high (>6...
October 5, 2016: Dementia and Geriatric Cognitive Disorders
Vincent T Martin, Brinder Vij
BACKGROUND: Comprehensive diets do not require the exclusion of a specific provocative food or ingredient, but regulate the quantities of core components of foods such as vitamins, ions, proteins, carbohydrates, and fats. OBJECTIVES: To review the evidence supporting the use of comprehensive diets in the prevention of migraine and other headache disorders and to discuss the mechanisms through which food, and ingredients within foods and beverages might trigger attacks of headache METHODS: This represents Part 2 of a narrative review of the role of diet in the prevention of migraine and other headache disorders...
October 2016: Headache
Valeria Deon, Cristian Del Bò, Federica Guaraldi, Giorgio Gargari, Andrea Bosusco, Paolo Simonetti, Patrizia Riso, Ornella Guardamagna
This study aimed at characterizing the fatty acid (FA) composition of red blood cell (RBC) phospholipids in children and adolescents with primary hyperlipidemia, and to ascertain potential association with serum lipid profile and dietary factors. At this purpose, 54 probands aged 6-17 years were recruited. Subjects showed a low omega-3 index (eicosapentaenoic acid, EPA + docosahexaenoic acid, DHA <4%). Compared to males, females had a trend toward lower levels of total monounsaturated fatty acids (MUFA) and MUFA/saturated fatty acids (SFAs) ratio in RBCs...
October 3, 2016: International Journal of Food Sciences and Nutrition
Maria Grazia Morgese, Emanuela Mhillaj, Matteo Francavilla, Maria Bove, Lucia Morgano, Paolo Tucci, Luigia Trabace, Stefania Schiavone
Increasing evidence shows that eukaryotic microalgae and, in particular, the green microalga Chlorella, can be used as natural sources to obtain a whole variety of compounds, such as omega (ω)-3 and ω-6 polyunsatured fatty acids (PUFAs). Although either beneficial or toxic effects of Chlorella sorokiniana have been mainly attributed to its specific ω-3 and ω-6 PUFAs content, the underlying molecular pathways remain to be elucidated yet. Here, we investigate the effects of an acute oral administration of a lipid extract of Chlorella sorokiniana, containing mainly ω-3 and ω-6 PUFAs, on cognitive, emotional and social behaviour in rats, analysing possible underlying neurochemical alterations...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Kathryn E Hopperton, Marc-Olivier Trépanier, Vanessa Giuliano, Richard P Bazinet
BACKGROUND: Neuroinflammation is a proposed mechanism by which Alzheimer's disease (AD) pathology potentiates neuronal death and cognitive decline. Consumption of omega-3 polyunsaturated fatty acids (PUFA) is associated with a decreased risk of AD in human observational studies and exerts protective effects on cognition and pathology in animal models. These fatty acids and molecules derived from them are known to have anti-inflammatory and pro-resolving properties, presenting a potential mechanism for these protective effects...
September 29, 2016: Journal of Neuroinflammation
Megan Arnold Gomes, Xiaoyuan Jia, Iris Kolenski, Alison M Duncan, Kelly A Meckling
BACKGROUND: The links between dietary fat intake, polyunsaturated fatty acid intake and breast cancer risk remain equivocal, with some studies pointing to improvements in risk upon omega-3 supplementation. However, the background diet is poorly controlled in most studies, potentially confounding this link. Therefore, this study examined the hypothesis that in order to see the benefits of omega-3 fatty acid supplementation, the background diet must be low in fat. METHODS: Of the 56 healthy, pre-menopausal women randomized to one of two experimental arms, consisting of a two-treatment, randomized, cross-over design, 41 completed the 10 month intervention...
September 29, 2016: Lipids in Health and Disease
James R Crandell, Christina Tartaglia, Joseph Tartaglia
OBJECTIVES: Residual cardiovascular risk and persistently elevated triglycerides (TGs) may remain despite statin therapy in patients with dyslipidemia. Prescription omega-3 fatty acid formulations containing docosahexaenoic acid (DHA) and/or eicosapentaenoic acid (EPA) have been shown to reduce TGs and may potentially lower residual cardiovascular risk. However, DHA may raise low-density lipoprotein cholesterol (LDL-C) and compromise treatment goals. Icosapent ethyl (Vascepa®), a high-purity prescription EPA formulation, has been shown to lower TGs and other lipid parameters without raising LDL-C...
October 11, 2016: Postgraduate Medicine
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