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alpha-linolenic acid

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https://www.readbyqxmd.com/read/28209094/attenuation-of-arsenic-trioxide-induced-cardiotoxicity-through-flaxseed-oil-in-experimental-rats
#1
Mathews V Varghese, M Abhilash, Manju Alex, M V Sauganth Paul, A Prathapan, K G Raghu, R Harikumaran Nair
OBJECTIVES: Arsenic trioxide (As2O3) is a potent drug for acute promyelocytic leukaemia, but its clinical trials are allied with some serious adverse events mainly cardiac functional abnormalities. So the objective of our investigation is to identify the cardioprotective action of flaxseed oil (FSO), a natural compound against As2O3 induced cardiotoxicity. METHODS: Male wistar rats were treated with As2O3 (4 mg/kg) to induce cardiotoxicity. FSO (250 and 500 mg/kg) was given in combination with As2O3 for evaluating its cardioprotective efficacy...
February 17, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28185855/biphasic-effect-of-alpha-linolenic-acid-on-glucose-induced-dysmorphogenesis-and-lipoperoxidation-in-whole-rat-embryo-in-culture
#2
Gladys Chirino-Galindo, Jorge-Israel Barrera-Argüelles, Ninna-Leslie Trejo-González, Ricardo Mejía-Zepeda, Martín Palomar-Morales
Type 1 diabetes mellitus complicated with pregnancy, know as diabetic embryopathy, is the cause of neonatal malformations and low for gestational age neonates. With the use of the whole-embryo culture system, it has been demonstrated that high glucose causes embryo dysmorphogenesis, and that oxidative stress appears to be the main mechanism. In recent years, beneficial effect of omega-3 fatty acids has been demonstrated in various diabetic models, and in diabetic complications. Since diabetic embryopathy is mediated probably through membrane lipoperoxidation, This study was designed to find if omega-3 fatty acids could ameliorate the effect of high glucose over the dysmorphogenesis of whole rat embryo in culture...
February 6, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28167220/omega-3-fatty-acids-and-cytochrome-p450-derived-eicosanoids-in-cardiovascular-diseases-which-actions-and-interactions-modulate-hemodynamics
#3
REVIEW
Sara Bonafini, Cristiano Fava
Increasing interest is focused on omega-3 fatty acids (FA) because of their potential beneficial effects, particularly in cardiovascular disease prevention. Eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), two major omega-3 FA, are mainly consumed through diet, particularly from fish and seafood intake, whereas alpha-linolenic acid (ALA) is present in high amounts in leafy green vegetables, nuts and seeds. The hypothesis of a cardiovascular protective action of omega-3 FA derives mainly from observational studies, whereas the evidence from interventional studies is not always consistent...
February 3, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28157380/omega-3-fatty-acid-plasma-levels-before-and-after-supplementation-correlations-with-mood-and-clinical-outcomes-in-the-omega-3-and-therapy-studies
#4
L Eugene Arnold, Andrea S Young, Martha A Belury, Rachel M Cole, Barbara Gracious, Adina M Seidenfeld, Hannah Wolfson, Mary A Fristad
OBJECTIVE: To examine fatty acid profiles, their response to omega-3 fatty acid (Ω3) supplementation, and associations with clinical status and treatment response in youth with mood disorders. METHODS: In a placebo-controlled 2X2 design, 7-14 year-olds (N = 95) in parallel pilot trials (depression N = 72; bipolar N = 23) were randomly assigned to 12 weeks of Ω3 supplementation (1.4 g eicosapentaenoic acid [EPA], 0.2 g docosahexaenoic acid [DHA], and 0...
February 3, 2017: Journal of Child and Adolescent Psychopharmacology
https://www.readbyqxmd.com/read/28157307/lipidomic-quantitation-of-oxidized-fatty-acids-in-plant-and-algae-oils
#5
Christine E Richardson, Marie Hennebelle, Yurika Otoki, Daisy Zamora, Jun Yang, Bruce D Hammock, Ameer Y Taha
Linoleic acid (LA) and alpha-linolenic acid (ALA) in plant or algae oils are precursors to oxidized fatty acid metabolites known as oxylipins. Liquid chromatography tandem mass spectrometry was used to quantify oxylipins in soybean, corn, olive, canola and four high-oleic acid algae oils at room temperature or after heating for 10 minutes at 100°C. Flaxseed oil oxylipin concentrations were determined in a follow-up experiment that compared it to soybean, canola, corn and olive oil. Published economic disappearance data for soybean, canola, corn and olive oil were used to estimate daily oxylipin intake...
February 3, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28154349/alpha-linolenic-acid-enriched-diacylglycerol-consumption-enhances-dietary-fat-oxidation-in-healthy-subjects-a-randomized-double-blind-controlled-trial
#6
Yasutoshi Ando, Shinichiro Saito, Nami Yamanaka, Chizuka Suzuki, Takahiro Ono, Noriko Osaki, Yoshihisa Katsuragi
Consumption of alpha linolenic acid-enriched diacylglycerol (ALA-DAG) reduces visceral fat area. In this study, we performed a randomized, placebo-controlled, double-blind, crossover intervention trial to investigate the effect of ALA-DAG on dietary fat oxidation in comparison with control triacylglycerol (TAG). Each subject (n=16) consumed either 2.5 g/d of ALA-DAG or TAG for 14-d, separated by a 21-d washout period. At the end of each consumption period, we assessed dietary fat oxidation. ALA-DAG consumption significantly enhanced dietary fat utilization as energy compared to TAG consumption...
2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28146136/consumption-of-red-meat-but-not-cooking-oils-high-in-polyunsaturated-fat-is-associated-with-higher-arachidonic-acid-status-in-singapore-chinese-adults
#7
Jowy Yi Hoong Seah, Gibson Ming Wei Gay, Jin Su, E-Shyong Tai, Jian-Min Yuan, Woon-Puay Koh, Choon Nam Ong, Rob M van Dam
High arachidonic acid (AA; 20:4 n - 6) status may have adverse effects on inflammation and risk of cardiovascular diseases. Concerns about high intake of n - 6 polyunsaturated fatty acids (PUFAs) are based on the premise that endogenous conversion from linoleic acid (LA; 18:2 n - 6) is an important source of AA, but few population-based studies have investigated dietary determinants of AA status. In this study, we examined habitual food consumption in relation to plasma concentrations of AA and other PUFAs in population-based studies...
January 31, 2017: Nutrients
https://www.readbyqxmd.com/read/28132659/long-chain-alkanes-and-fatty-acids-from-ludwigia-octovalvis-weed-leaf-surface-waxes-as-short-range-attractant-and-ovipositional-stimulant-to-altica-cyanea-weber-coleoptera-chrysomelidae
#8
S Mitra, N Sarkar, A Barik
The importance of leaf surface wax compounds from the rice-field weed Ludwigia octovalvis (Jacq.) Raven (Onagraceae) was determined in the flea beetle Altica cyanea (Weber) (Coleoptera: Chrysomelidae). Extraction, thin layer chromatography and GC-MS and GC-FID analyses of surface waxes of young, mature and senescent leaves revealed 20, 19 and 19 n-alkanes between n-C15 and n-C35, respectively; whereas 14, 14 and 12 free fatty acids between C12:0 and C22:0 fatty acids were identified in young, mature and senescent leaves, respectively...
January 30, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28109294/probing-the-intermolecular-interactions-of-ppar%C3%AE-lbd-with-polyunsaturated-fatty-acids-and-their-anti-inflammatory-metabolites-to-infer-most-potential-binding-moieties
#9
Shalini Muralikumar, Umashankar Vetrivel, Angayarkanni Narayanasamy, Undurti N Das
BACKGROUND: PPARγ is an isoform of peroxisome proliferator-activated receptor (PPAR) belonging to a super family of nuclear receptors. PPARγ receptor is found to play a crucial role in the modulation of lipid and glucose homeostasis. Its commotion has been reported to play a significant role in a broad spectrum of diseases such as type 2 diabetes mellitus, inflammatory diseases, Alzheimer's disease, and in some cancers. Hence, PPARγ is an important therapeutic target. Polyunsaturated fatty acids (PUFAs) and their metabolites (henceforth referred to as bioactive lipids) are known to function as agonists of PPARγ...
January 21, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28108729/comparative-omega-3-fatty-acid-enrichment-of-egg-yolks-from-first-cycle-laying-hens-fed-flaxseed-oil-or-ground-flaxseed
#10
I J Ehr, M E Persia, E A Bobeck
When laying hen diets are enriched with omega-3 polyunsaturated fatty acids to generate value-added eggs for human consumption markets, concentrations of alpha-linolenic (ALA), eicosapentaenoic (EPA), and docosahexaenoic acids (DHA) in the yolk can reach 250 mg/50 g whole egg. Flaxseed, a rich source of ALA, is commonly used for omega-3 enrichment; however, the impact of dietary flaxseed source (extracted oil vs. milled seed) on fatty acid transfer to egg yolk in laying hens is unknown. Therefore, transfer of ALA, EPA, and DHA into egg yolk from extracted flaxseed oil or milled flaxseed was evaluated in Hy-Line W-36 laying hens over an 8-week feeding period (25 to 33 wk old)...
January 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28071699/rye-polyphenols-and-the-metabolism-of-n-3-fatty-acids-in-rats-a-dose-dependent-fatty-fish-like-effect
#11
Fayçal Ounnas, Michel de Lorgeril, Patricia Salen, François Laporte, Luca Calani, Pedro Mena, Furio Brighenti, Daniele Del Rio, Christine Demeilliers
As long-chain fatty acids (LCFA) of the n-3 series are critically important for human health, fish consumption has considerably increased in recent decades, resulting in overfishing to respond to the worldwide demand, to an extent that is not sustainable for consumers' health, fisheries economy, and marine ecology. In a recent study, it has been shown that whole rye (WR) consumption improves blood and liver n-3 LCFA levels and gut microbiota composition in rats compared to refined rye. The present work demonstrates that specific colonic polyphenol metabolites may dose dependently stimulate the synthesis of n-3 LCFA, possibly through their microbial and hepatic metabolites in rats...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28063950/dietary-alpha-linolenic-acid-linoleic-acid-ratios-modulate-immune-response-physical-barrier-and-related-signaling-molecules-mrna-expression-in-the-gills-of-juvenile-grass-carp-ctenopharyngodon-idella
#12
Yun-Yun Zeng, Lin Feng, Wei-Dan Jiang, Yang Liu, Pei Wu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou
This study was conducted to explore the possible effects of dietary ALA/LNA ratios on the gill immunity, tight junction and antioxidant capacity, and the related signaling factor mRNA levels of juvenile grass carp (Ctenopharyngodon idella). Fish were fed diets with different ALA/LNA ratios (0.01, 0.34, 0.68, 1.03, 1.41, 1.76 and 2.15) for 60 days. The present results showed that ALA/LNA ratio of 1.03 significantly enhanced lysozyme and acid phosphatase activities, complement 3 contents, promoted mRNA levels of antimicrobial peptides (Hepcidin and liver expression antimicrobial peptide-2), anti-inflammatory cytokines (interleukin 10 and transforming growth factor β1) and inhibitor protein κBα, whereas suppressed pro-inflammatory cytokines (interleukin 1β, interleukin 8, tumor necrosis factor a and interferon γ2), and signal molecules (IκB kinase β, IκB kines γ and nuclear factor κB p65) mRNA levels in the gill, indicating that optimal dietary ALA/LNA ratio improve gill immunity of juvenile fish...
January 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28058519/stimulation-of-glycerol-kinase-in-grass-carp-preadipocytes-by-epa
#13
Caixia Lei, Jingjing Tian, Hong Ji
This study was conducted to assess the effect of eicosapentaenoic acid (EPA) on grass carp preadipocyte glycerol kinase (GyK) expression, as well as to explore the mechanism. Here, we cloned partial sequence of grass carp GyK gene and analyzed its tissue distribution. The result showed that GyK gene expressed most in the liver, followed by adipose tissue and the kidney. Besides, 400 μM oleic acid (18:1n-9, OA) was used to establish a hypertrophic preadipocyte model. GyK gene expression and enzyme activity were significantly enhanced after model cells were treated with 100 μM eicosapentaenoic acid (20:5n-3, EPA) for 6, 12, and 24 h...
January 5, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/27981754/identification-of-predominant-phytochemical-compounds-and-cytotoxic-activity-of-wild-olive-leaves-olea-europaea-l-ssp-sylvestris-harvested-in-south-portugal
#14
Justyna Makowska-Wąs, Agnieszka Galanty, Joanna Gdula-Argasińska, Małgorzata Tyszka-Czochara, Agnieszka Szewczyk, Ricardo Nunes, Isabel de Carvalho, Marta Michalik, Paweł Paśko
This study has been aimed at providing a qualitative and quantitative evaluation of selected phytochemicals such as phenolic acids, flavonoids, oleuropein, fatty acids profile, and volatile oil compounds, present in wild olive leaves harvested in Portugal, as well as at determining their antioxidant and cytotoxic potential against human melanoma HTB-140 and WM793, prostate cancer DU-145 and PC-3, hepatocellular carcinoma Hep G2 cell lines, as well as normal human skin fibroblasts BJ and prostate epithelial cells PNT2...
December 16, 2016: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/27973547/regulation-of-the-omega-3-fatty-acid-biosynthetic-pathway-in-atlantic-salmon-hepatocytes
#15
Marte Avranden Kjær, Bente Ruyter, Gerd Marit Berge, Yajing Sun, Tone-Kari Knutsdatter Østbye
Limited availability of the n-3 fatty acids EPA and DHA have led to an interest in better understanding of the n-3 biosynthetic pathway and its regulation. The biosynthesis of alpha-linolenic acid to EPA and DHA involves several complex reaction steps including desaturation-, elongation- and peroxisomal beta-oxidation enzymes. The aims of the present experiments were to gain more knowledge on how this biosynthesis is regulated over time by different doses and fatty acid combinations. Hepatocytes isolated from salmon were incubated with various levels and combinations of oleic acid, EPA and DHA...
2016: PloS One
https://www.readbyqxmd.com/read/27960561/dietary-essential-%C3%AE-linolenic-acid-and-linoleic-acid-differentially-modulate-tnf%C3%AE-induced-nf%C3%AE%C2%BAb-activity-in-fads2-deficient-hek-293-cells
#16
Ruth Schübel, Anke Jaudszus, Ralf Krüger, Alexander Roth, Martin Klempt, Stephan Wilhelm Barth
The pro- or anti-inflammatory bioactivity of dietary essential linoleic acid (LA) and alpha-linolenic acid (ALA) is mainly attributed to rate-limiting delta-6 desaturase (D6D) activity. The aim of this study was to analyze mechanisms of D6D-substrates ALA, LA and D6D-product gamma-linolenic acid (GLA) under D6D-deficient conditions. Fatty acid profiles (GC-MS), D6D gene expression (real-time RT-PCR) and NFκB activity (luciferase assay) were assessed in HEK293 cells. FADS2 gene expression was approved being marginal...
December 14, 2016: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/27941179/flaxseed-oil-supplementation-manipulates-correlations-between-serum-individual-mol-free-fatty-acid-levels-and-insulin-resistance-in-type-2-diabetics-insulin-resistance-and-percent-remaining-pancreatic-%C3%AE-cell-function-are-unaffected
#17
D E Barre, K A Mizier-Barre, O Griscti, K Hafez
OBJECTIVES: Elevated total serum free fatty acids (FFAs) concentrations have been suggested, controversially, to enhance insulin resistance and decrease percent remaining β-cell function. However, concentrations of individual serum FFAs have never been published in terms of their relationship (correlation) to homeostatic model assessment-insulin resistance (HOMA-IR) and percent remaining β-cell function (HOMA-%β) in the type 2 diabetics (T2Ds). Alpha-linolenic acid consumption has a negative correlation with the insulin resistance, which in turn is negatively correlated with the remaining β-cell function...
October 1, 2016: Endocrine Regulations
https://www.readbyqxmd.com/read/27934292/rice-koji-extract-enhances-lipid-metabolism-through-proliferator-activated-receptor-alpha-ppar%C3%AE-activation-in-mouse-liver
#18
Haruya Takahashi, Hsin-Yi Chi, Shinsuke Mohri, Kosuke Kamakari, Keiji Nakata, Noriyoshi Ichijo, Rieko Nakata, Hiroyasu Inoue, Tsuyoshi Goto, Teruo Kawada
Koji is made from grains fermented with Aspergillus oryzae and is essential for the production of many traditional Japanese foods. Many previous studies have shown that koji contributes to the improvement of dyslipidemia. However, little is known regarding the underlying mechanism of this effect. Furthermore, the compound contributing to the activation of lipid metabolism is unknown. We demonstrated that rice koji extract (RKE) induces the mRNA expression of peroxisome proliferator-activated receptor alpha (PPARα) target genes, which promotes lipid metabolism in murine hepatocytes...
November 23, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27926459/dietary-omega-3-polyunsaturated-fatty-acid-supplementation-in-an-animal-model-of-anxiety
#19
Brian M Ross, Imran Malik, Slim Babay
A large body of evidence suggests that dietary supplementation with omega-3 fatty acids may ameliorate depressed mood. The magnitude of the effect varies between studies, however, ranging from none at all to being of clinical significance. Given that substantial comorbidity occurs between mood and anxiety disorders, suggesting that they have one or more pathophysiological mechanisms in common, we hypothesized that omega-3 fatty acids may be acting primarily to reduce anxiety rather than depression per se, a possibility which could underlie their variable effects on mood...
November 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/27914517/effect-of-flaxseed-oil-and-microalgae-dha-on-the-production-performance-fatty-acids-and-total-lipids-of-egg-yolk-and-plasma-in-laying-hens
#20
M Neijat, O Ojekudo, J D House
The incorporation of omega-3 polyunsaturated fatty acids (PUFA) in the egg is dependent on both the transfer efficiency of preformed dietary omega-3 fatty acids to the eggs as well as endogenous PUFA metabolism and deposition. Employing an experimental design consisting of 70 Lohmann LSL-Classic hens (n=10/treatment) in a 6-week feeding trial, we examined the impact of graded levels of either flaxseed oil (alpha-linolenic acid, ALA) or algal DHA (preformed docosahexaenoic acid, DHA), each supplying 0.20%, 0...
December 2016: Prostaglandins, Leukotrienes, and Essential Fatty Acids
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