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polyunsaturated fatty acids

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https://www.readbyqxmd.com/read/28431930/quantitative-proteomics-reveals-key-proteins-regulated-by-eicosapentaenoic-acid-in-endothelial-activation
#1
Lu Zhang, Kunhong Xiao, Xuyang Zhao, Xiaoli Sun, Jianshu Zhang, Xian Wang, Yi Zhu, Xu Zhang
Eicosapentaenoic acid (EPA), an n-3 polyunsaturated fatty acid (PUFA), has been shown to decrease the risk of atherosclerosis by attenuating endothelial activation. In this study, we used mass spectrometry-based label-free quantitative proteomics to study the protective mechanisms of EPA and to identify key proteins that regulated by EPA in endothelial activation. Arachidonic acid (AA) was used as a control. HUVECs were pretreated with each of the two PUFAs, and then stimulated with TNFα as a model of endothelial activation...
April 18, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28431151/dietary-choline-and-phospholipid-supplementation-enhanced-docosahexaenoic-acid-enrichment-in-egg-yolk-of-laying-hens-fed-a-2-schizochytrium-powder-added-diet
#2
H Wang, H J Zhang, X C Wang, S G Wu, J Wang, L Xu, G H Qi
The aim of this study was to evaluate the effect of dietary phospholipid supplementation on laying hen performance, egg quality, and the fatty acid profile of egg yolks from hens fed a 2% Schizochytrium powder diet. Three-hundred-sixty 28-wk-old Hy-line W-36 laying hens were randomly allocated to one of the 5 dietary treatments, each treatment with 6 replicates of 12 birds each. All diets included 2% Schizochytrium powder (docosahexaenoic acid [DHA], 137.09 mg/g). The control group was not supplemented with any additional phospholipids, whereas the other 4 experimental diets were supplemented with 1,000 mg/kg choline (CHO), 1,000 mg/kg monoethanolamine (MEA), 1,000 mg/kg lysophosphatidylcholine (LPC), or 500 mg/kg LPC + 500 mg/kg MEA (LPC + MEA)...
April 20, 2017: Poultry Science
https://www.readbyqxmd.com/read/28427779/fish-oil-lc-pufas-do-not-affect-blood-coagulation-parameters-and-bleeding-manifestations-analysis-of-8-clinical-studies-with-selected-patient-groups-on-omega-3-enriched-medical-nutrition
#3
Stephanie Jeansen, Renger F Witkamp, Jossie A Garthoff, Ardy van Helvoort, Philip C Calder
BACKGROUND & AIMS: The increased consumption of fish oil enriched-products exposes a wide diversity of people, including elderly and those with impaired health to relatively high amounts of n-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs). There is an ongoing debate around the possible adverse effects of n-3 LC-PUFAs on bleeding risk, particularly relevant in people with a medical history of cardiovascular events or using antithrombotic drugs. METHODS: This analysis of 8 clinical intervention studies conducted with enteral medical nutrition products containing fish oil as a source of n-3 LC-PUFAs addresses the occurrence of bleeding-related adverse events and effects on key coagulation parameters (Prothrombin Time [PT], (activated) and Partial Thromboplastin Time [(a)PTT])...
March 29, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28427403/preoperative-carbohydrate-load-and-intraoperatively-infused-omega-3-polyunsaturated-fatty-acids-positively-impact-nosocomial-morbidity-after-coronary-artery-bypass-grafting-a-double-blind-controlled-randomized-trial
#4
Gibran Roder Feguri, Paulo Ruiz Lúcio de Lima, Danilo de Cerqueira Borges, Laura Ramos Toledo, Larissa Nadaf Batista, Thaís Carvalho E Silva, Neuber José Segri, José Eduardo de Aguilar-Nascimento
BACKGROUND: A strategy of limited preoperative fasting, with carbohydrate (CHO) loading and intraoperative infusion of omega-3 polyunsaturated fatty acids (ω-3 PUFA), has seldom been tried in cardiovascular surgery. Brief fasting, followed by CHO intake 2 h before anesthesia, may improve recovery from CABG procedures and lower perioperative vasoactive drug requirements. Infusion of ω-3 PUFA may reduce occurrences of postoperative atrial fibrillation (POAF) and shorten hospital stays...
April 20, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28426718/effects-of-dietary-beef-pork-chicken-and-salmon-on-intestinal-carcinogenesis-in-a-j-min-mice
#5
Christina Steppeler, Marianne Sødring, Bjørg Egelandsdal, Bente Kirkhus, Marije Oostindjer, Ole Alvseike, Lars Erik Gangsei, Ellen-Margrethe Hovland, Fabrice Pierre, Jan Erik Paulsen
The International Agency for Research on Cancer has classified red meat as "probably carcinogenic to humans" (Group 2A). In mechanistic studies exploring the link between intake of red meat and CRC, heme iron, the pigment of red meat, is proposed to play a central role as a catalyzer of luminal lipid peroxidation and cytotoxicity. In the present work, the novel A/J Min/+ mouse was used to investigate the effects of dietary beef, pork, chicken, or salmon (40% muscle food (dry weight) and 60% powder diet) on Apc-driven intestinal carcinogenesis, from week 3-13 of age...
2017: PloS One
https://www.readbyqxmd.com/read/28424949/aggressive-crosstalk-between-fatty-acids-and-inflammation-in-macrophages-and-their-influence-on-metabolic-homeostasis
#6
Kazuhiro Nishiyama, Yasuyuki Fujimoto, Tadayoshi Takeuchi, Yasu-Taka Azuma
From the immunological point of view, macrophages are required to maintain metabolic homeostasis. Recently, there has been an increased focus on the influence of macrophage phenotypes in adipose tissue on the maintenance of metabolic homeostasis in healthy conditions because dysregulated metabolic homeostasis causes metabolic syndrome. This review notes several types of inflammatory and anti-inflammatory mediators in metabolic homeostasis. M1 macrophage polarization mediates inflammation, whereas M2 macrophage polarization mediates anti-inflammation...
April 19, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28423943/high-value-added-lipids-produced-by-microorganisms-a-potential-use-of-sugarcane-vinasse
#7
Bruna Soares Fernandes, João Paulo Fernandes Vieira, Fabiano Jares Contesini, Paulo Eduardo Mantelatto, Marcelo Zaiat, José Geraldo da Cruz Pradella
This review aims to present an innovative concept of high value added lipids produced by heterotrophic microorganisms, bacteria and fungi, using carbon sources, such as sugars, acids and alcohols that could come from sugarcane vinasse, which is the main byproduct from ethanol production that is released in the distillation step. Vinasse is a rich carbon source and low-cost feedstock produced in large amounts from ethanol production. In 2019, the Brazilian Ministry of Agriculture, Livestock and Food Supply estimates that growth of ethanol domestic consumption will be 58...
April 20, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28423890/physicochemical-characteristics-and-fatty-acid-profiles-of-muscle-tissues-from-hanwoo-steers-fed-a-total-mixed-ration-supplied-with-medicinal-plant-by-products
#8
Shin Ja Lee, Do Hyung Kim, Han Sul Yang, Ki Chang Nam, Seung Kyu Ahn, Sung Kwon Park, Chang Weon Choi, Sung Sill Lee
Objective: Using medicinal plant by-products (MPBP) as feed additives may be an eco-friendly option as substitutes for feedstuffs and may assist in reducing the improper disposal of MPBP. Therefore, this study was conducted to evaluate the influences of medicinal plant by-products on the meat quality of Hanwoo steers fed a total mixed ration (TMR). Methods: Twenty seven steers (BW = 573 ± 57 kg) were randomly divided into three treatments with a control group and two tested groups as follows: control, 1000 g/kg TMR; treatment 1 (MPBP30), 970 g/kg TMR and 30 g/kg MPBP; treatment 2 (MPBP50), 950 g/kg TMR and 50 g/kg MPBP...
March 25, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28422962/docosahexaenoic-acid-blocks-progression-of-western-diet-induced-nonalcoholic-steatohepatitis-in-obese-ldlr-mice
#9
Kelli A Lytle, Carmen P Wong, Donald B Jump
BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is a major public health concern in western societies. Nonalcoholic steatohepatitis (NASH), the progressive form of NAFLD, is characterized by hepatic steatosis, inflammation, oxidative stress and fibrosis. NASH is a risk factor for cirrhosis and hepatocellular carcinoma. NASH is predicted to be the leading cause of liver transplants by 2020. Despite this growing public health concern, there remain no Food and Drug Administration (FDA) approved NASH treatments...
2017: PloS One
https://www.readbyqxmd.com/read/28422577/enrichment-of-zebrafish-danio-rerio-hamilton-1822-diet-with-polyunsaturated-fatty-acids-improves-fecundity-and-larvae-quality
#10
Joanna Nowosad, Dariusz Kucharczyk, Katarzyna Targońska
The zebrafish is a freshwater fish of the Cyprinidae family, which is frequently used in scientific research. It owes its popularity to its genome, whose structure is comparable to the human genome and, for this reason, this species is often used in human medical research. However, such research requires high-quality material to conduct tests producing repeatable results. This study examines the effect of providing feed enriched with essential fatty acids, especially docosahexaenoic acid, to zebrafish spawners on fertility as well as the survival rate and growth of their offspring...
April 19, 2017: Zebrafish
https://www.readbyqxmd.com/read/28421791/association-of-4-hydroxynonenal-with-classical-adipokines-and-insulin-resistance-in-a-chinese-non-diabetic-obese-population
#11
Lin Guo, Xi-Mei Zhang, Yun-Bo Zhang, Xiang Huang, Mei-Hua Chi
BACKGROUND: The prevalence of obesity is increasing worldwide. Oxidative stress plays an etiological role in a variety of obesity-related metabolic disorders. 4-hydroxynonenal (4-HNE) is the most abundant and reactive aldehydic product derived from the peroxidation of n-6 polyunsaturated fatty acids with diverse biological effects that are not well detailed. Obesity is associated with decreased plasma adiponectin concentrations and increased production of lipid peroxidation products, including 4-HNE, in adipose tissue...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28420476/-mechanism-of-resolvins-in-reducing-the-inflammation-reaction-in-inflammatory-diseases
#12
Shunan Cui, Shanglong Yao, You Shang
Inflammation is an important mechanism for the host to resist external infection and injury. Under normal conditions, adaptive inflammatory response not only is conducive to the repair of damaged cells and tissues, but plays an important role to promote the internal environment to restored homeostasis. However, when the immune function is damaged, the unresolved and uncontrolled inflammation will cause non-specific tissue damage, which is linked to a variety of inflammatory diseases. In the acute inflammation, resolvins, a group of endogenous small molecular lipid mediators which are biosynthesized by polyunsaturated fatty acids, possess anti-inflammatory and pro-resolving actions, which are benefit for the repair of damaged tissue...
April 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28420388/association-between-maternal-intake-of-n-6-to-n-3-fatty-acid-ratio-during-pregnancy-and-infant-neurodevelopment-at-6-months-of-age-results-of-the-moceh-cohort-study
#13
Hyejin Kim, Hyesook Kim, Eunjung Lee, Yeni Kim, Eun-Hee Ha, Namsoo Chang
BACKGROUND & AIMS: Long-chain polyunsaturated fatty acids (LC-PUFAs) are essential for infant neurodevelopment. The nutritional adequacy of dietary LC-PUFAs depends not only on the LC-PUFAs intake but also on the n-6 to n-3 fatty acid ratio (n-6/n-3 PUFAs). This study aimed to identify the association between the maternal dietary n-6/n-3 PUFAs and motor and cognitive development of infants at 6 months of age. METHODS: We used data from 960 participants in the Mothers and Children's Environmental Health (MOCEH) study, which is a multi-center prospective cohort study...
April 18, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28420234/raman-spectroscopy-of-fish-oil-capsules-pufa-quantitation-plus-detection-of-ethyl-esters-and-oxidation
#14
Daniel P Killeen, Susan N Marshall, Elaine J Burgess, Keith C Gordon, Nigel B Perry
Fish oils are the primary dietary source of ω-3 polyunsaturated fatty acids (PUFA), but these compounds are prone to oxidation, and commercial fish oil supplements sometimes contain less PUFA than claimed. These supplements are predominantly sold in softgel capsules. In this work we show that Fourier-Transform (FT)-Raman spectra of fish oils (n=5) and ω-3 PUFA concentrates (n=6) can be acquired directly through intact softgel (gelatin) capsules. These spectra could be used to rapidly distinguish supplements containing ethyl esters from those triacylglyceride oils...
April 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28420147/intake-levels-of-fish-in-the-uk-paediatric-population
#15
Sibylle Kranz, Nicholas R V Jones, Pablo Monsivais
The United Kingdom (UK) is an island and its culture, including diet, is heavily influenced by the maritime resources. Dietary guidance in the UK recommends intake of fish, which provides important nutrients, such as long-chain omega-3 polyunsaturated fatty acids (n-3 PUFA). This study was designed to describe the fish intake habits of UK children using a nationally representative sample. Dietary and socio-demographic data of children 2-18 (N = 2096) in the National Diet and Nutrition Survey Rolling Program (NDNS) Years 1-4 (2008-2012) were extracted...
April 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28418808/effects-of-maternal-supplementation-with-omega-3-precursors-on-human-milk-composition
#16
Evelyne Mazurier, Virginie Rigourd, Paul Perez, Rachel Buffin, Leslie Couedelo, Carole Vaysse, Wafae Belcadi, Rémi Sitta, Fabienne Nacka, Delphine Lamireau, Gilles Cambonie, Jean-Charles Picaud, Claude Billeaud
BACKGROUND: Long-chain polyunsaturated fatty acids (LC-PUFAs) are important for newborn neurosensory development. Supplementation of breastfeeding mothers' diets with omega-3 PUFAs, such as alpha-linolenic acid (ALA), may increase their concentration in human milk. Research aim: This study aimed to assess human milk composition after 15-day supplementation regimens containing either omega-3 PUFAs or olive oil, which does not provide ALA. METHODS: A multicenter factorial randomized trial was conducted with four groups of breastfeeding women, with each group containing 19 to 22 women...
May 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28417511/algal-supplementation-of-vegetarian-eating-patterns-improves-plasma-and-serum-docosahexaenoic-acid-concentrations-and-omega-3-indices-a-systematic-literature-review
#17
REVIEW
J C Craddock, E P Neale, Y C Probst, G E Peoples
BACKGROUND: Vegetarians are likely to have lower intakes of preformed docosahexaenoic acid (DHA) than omnivorous populations who consume fish and animal products. As such, vegetarian populations have omega-3 indices up to 60% lower than those who consume marine products. Algae, the primary producer of DHA in the marine food chain, offer an alternative source of DHA for those who do not consume marine or animal products. This systematic review aims to examine the evidence for the relationship between supplementation with algal forms of DHA and increased DHA concentrations in vegetarian populations...
April 17, 2017: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/28416579/inflammatory-stimuli-induce-acyl-coa-thioesterase-7-and-remodeling-of-phospholipids-containing-unsaturated-long-%C3%A2-c20-acyl-chains-in-macrophages
#18
Valerie Z Wall, Shelley Barnhart, Farah Kramer, Jenny E Kanter, Anuradha Vivekanandan-Giri, Subramaniam Pennathur, Chiara Bolego, Jessica M Ellis, Miguel A Gijón, Michael J Wolfgang, Karin E Bornfeldt
Acyl-CoA thioesterase 7 (ACOT7) is an intracellular enzyme that converts acyl-CoAs to free fatty acids. ACOT7 is induced by lipopolysaccharide (LPS), thus we investigated downstream effects of LPS-induced induction of ACOT7 and its role in inflammatory settings in myeloid cells. Enzymatic thioesterase activity assays in wildtype and ACOT7-deficient macrophage lysates indicated that endogenous ACOT7 contributes a significant fraction of total acyl-CoA thioesterase activity towards C20:4-CoA, C20:5-CoA and C22:6-CoA, but contributes little activity towards shorter acyl-CoA species...
April 17, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28416387/differential-regulation-of-the-lipoxygenase-pathway-in-shrimp-hepatopancreases-and-ovaries-during-ovarian-development-in-the-black-tiger-shrimp-penaeus-monodon
#19
Wananit Wimuttisuk, Punsa Tobwor, Pacharawan Deenarn, Chakapong Intaraudom, Thapanee Pruksatrakul, Sutichai Nithithanasilp, Somjai Wongtripop, Suwanchai Phomklad, Panomkorn Chaithongsakul, Vanicha Vichai
Dietary polyunsaturated fatty acids (PUFAs) are critical to the success of ovarian development in marine crustaceans, especially for domesticated species such as the black tiger shrimp Penaeus monodon. These fatty acids are stored in a midgut gland called the hepatopancreas and subsequently serve as an energy source or are incorporated in yolk during ovarian development. PUFAs are known precursors of hydroxy fatty acids, including hydroxyeicosatetraenoic acid and hydroxyeicosapentaenoic acid (HEPE), which are catalyzed by lipoxygenases (LOX)...
April 14, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28411954/n-3-polyunsaturated-fatty-acids-for-the-management-of-patients-with-chronic-kidney-disease
#20
EDITORIAL
My Svensson, Juan Jesús Carrero
No abstract text is available yet for this article.
May 2017: Journal of Renal Nutrition
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