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fish oil and oxidation

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https://www.readbyqxmd.com/read/28604588/docosahexaenoic-acid-induces-expression-of-heme-oxygenase-1-and-nad-p-h-quinone-oxidoreductase-through-activation-of-nrf2-in-human-mammary-epithelial-cells
#1
Hye-Yoon Bang, Sin-Aye Park, Soma Saeidi, Hye-Kyung Na, Young-Joon Surh
Docosahexaenoic acid (DHA), an ω-3 fatty acid abundant in fish oils, has diverse health beneficial effects, such as anti-oxidative, anti-inflammatory, neuroprotective, and chemopreventive activities. In this study, we found that DHA induced expression of two representative antioxidant/cytoprotective enzymes, heme oxygenase-1 (HO-1) and NAD(P)H:quinone oxidoreductase (NQO1), in human mammary epithealial (MCF-10A) cells. DHA-induced upregulation of these enzymes was accompanied by enhanced translocation of the redox-sensitive transcription factor Nrf2 into the nucleus and its binding to antioxidant response element...
June 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28602741/disease-resistance-and-response-against-vibrio-anguillarum-intestinal-infection-in-european-seabass-dicentrarchus-labrax-fed-low-fish-meal-and-fish-oil-diets
#2
S Torrecillas, M J Caballero, D Mompel, D Montero, M J Zamorano, L Robaina, F Rivero-Ramírez, V Karalazos, S Kaushik, M Izquierdo
The aim of this study was to assess the effects of low levels of dietary fish meal (FM) and fish oil (FO) on disease resistance and gut associated lymphoid tissue (GALT) response after an experimental intestinal infection with V. anguillarum in European sea bass (Dicentrarchus labrax) For that purpose, sea bass juveniles were fed one of four diets containing combined levels of FO and FM as follows: 20%FM/6%FO, 20%FM/3%FO, 5%FM/6%FO and 5%FM/3%FO during 153 days. At the end of the feeding trial, fish were subjected to either an in vivo exposure to a sub-lethal dose of V...
June 7, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28601011/developmental-toxicity-of-hydroxylated-chrysene-metabolites-in-zebrafish-embryos
#3
Graciel Diamante, Gabrielle do Amaral E Silva Müller, Norma Menjivar-Cervantes, Elvis Genbo Xu, David C Volz, Afonso Celso Dias Bainy, Daniel Schlenk
One of the primary sources of polycyclic aromatic hydrocarbons (PAHs) in marine environments is oil. Photochemical oxidation and microbial transformation of PAH-containing oils can result in the formation of oxygenated products. Among the PAHs in crude oil, chrysene is one of the most persistent within the water column and may be transformed to 2- and 6-hydroxychrysene (OHCHR). Both of these compounds have been shown to activate (2-OHCHR) and antagonize (6-OHCHR) the estrogen receptor (ER). Previous studies in our lab have shown that estrogen can significantly alter zebrafish development...
June 3, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28573726/effect-of-curry-leaf-and-clove-bud-essential-oils-on-textural-and-oxidative-stability-of-chill-stored-sutchi-catfish-fillets
#4
P K Binsi, George Ninan, C N Ravishankar
Effect of coating with curry leaf and clove essential oils (EO) on oxidative and textural stability of sutchi catfish fillets were evaluated during chilled storage. The changes in parameters associated with textural and lipid degradation was also evaluated to ascertain the interactive effect of polyphenols with muscle proteins. Further, the results were compared against vacuum and conventional polyethylene packaging practices. Prior to coating, the properties of antioxidants were evaluated in vitro based on total phenolic and flavonoid contents, 2, 2-diphenyl-1- picrylhydrazyl radical scavenging activity, inhibition of linoleic acid peroxidation, iron reducing power, and metal chelating ability...
June 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28571622/reprint-of-development-of-methods-for-avian-oil-toxicity-studies-using-the-double-crested-cormorant-phalacrocorax-auritus
#5
Fred Cunningham, Karen Dean, Katie Hanson-Dorr, Kendal Harr, Kate Healy, Katherine Horak, Jane Link, Susan Shriner, Steven Bursian, Brian Dorr
Oral and external dosing methods replicating field exposure were developed using the double crested cormorant (DCCO) to test the toxicity of artificially weathered Deepwater Horizon Mississippi Canyon 252 oil. The majority of previous oil dosing studies conducted on wild-caught birds used gavage methods to dose birds with oil and determine toxicity. However, rapid gut transit time of gavaged oil likely reduces oil absorption. In the present studies, dosing relied on injection of oil into live feeder fish for oral dosing of these piscivorous birds, or applying oil to body contour feathers resulting in transdermal oil exposure and oral exposure through preening...
May 29, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28566223/oxidative-and-biochemical-responses-in-brycon-amazonicus-anesthetized-and-sedated-with-myrcia-sylvatica-g-mey-dc-and-curcuma-longa-l-essential-oils
#6
Etiane M H Saccol, Érika P Londero, Caroline A Bressan, Joseânia Salbego, Luciane T Gressler, Lenise V F Silva, Rosa H V Mourão, Ricardo B Oliveira, Susana F Llesuy, Bernardo Baldisserotto, Maria A Pavanato
OBJECTIVE: To investigate the effects of rapid anesthesia and long-term sedation with the essential oils (EOs) of Myrcia sylvatica (EOMS) and Curcuma longa (EOCL) on biochemical and oxidative parameters in matrinxã. STUDY DESIGN: Prospective, randomized, laboratory experiment. ANIMALS: A total of 72 matrinxã (Brycon amazonicus) adults weighing 404.8 ± 27.9 g were divided into eight groups of nine fish. METHODS: Biochemical and oxidative effects were investigated in plasma and tissues of matrinxã subjected to rapid anesthesia (5 minutes) or long-term sedation (360 minutes, simulating the practice of transport) with EOMS (200 μL L(-1) and 10 μL L(-1), respectively) and EOCL (500 μL L(-1) and 40 μL L(-1), respectively)...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28559122/reprint-of-overview-of-avian-toxicity-studies-for-the-deepwater-horizon-natural-resource-damage-assessment
#7
S J Bursian, C R Alexander, D Cacela, F L Cunningham, K M Dean, B S Dorr, C K Ellis, C A Godard-Codding, C G Guglielmo, K C Hanson-Dorr, K E Harr, K A Healy, M J Hooper, K E Horak, J P Isanhart, L V Kennedy, J E Link, I Maggini, J K Moye, C R Perez, C A Pritsos, S A Shriner, K A Trust, P L Tuttle
The Oil Pollution Act of 1990 establishes liability for injuries to natural resources because of the release or threat of release of oil. Assessment of injury to natural resources resulting from an oil spill and development and implementation of a plan for the restoration, rehabilitation, replacement or acquisition of natural resources to compensate for those injuries is accomplished through the Natural Resource Damage Assessment (NRDA) process. The NRDA process began within a week of the Deepwater Horizon oil spill, which occurred on April 20, 2010...
May 27, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28558855/high-quality-fish-oil-has-a-more-favourable-effect-than-oxidised-fish-oil-on-intermediate-density-lipoprotein-and-ldl-subclasses-a-randomised-controlled-trial
#8
Amanda Rundblad, Kirsten B Holven, Inger Ottestad, Mari C Myhrstad, Stine M Ulven
Fish oil (FO) supplementation reduces the risk of CVD. However, it is not known if FO of different qualities have different effects on lipoprotein subclasses in humans. We aimed at investigating the effects of oxidised FO and high-quality FO supplementation on lipoprotein subclasses and their lipid concentrations in healthy humans. In all, fifty-four subjects completed a double-blind randomised controlled intervention study. The subjects were randomly assigned to receive high-quality FO (n 17), oxidised FO (n 18) or high-oleic sunflower oil capsules (HOSO, n 19) for 7 weeks...
May 31, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28526935/diabetes-induced-abnormalities-of-mitochondrial-function-in-rat-brain-cortex-the-effect-of-n-3-fatty-acid-diet
#9
Maria Chomova, Maria Balazova, Jana Muchova
Diabetic encephalopathy, a proven complication of diabetes is associated with gradually developing end-organ damage in the CNS increasing the risk of stroke, cognitive dysfunction or Alzheimer's disease. This study investigated the response of rat cortical mitochondria to streptozotocin-induced diabetes and the potential for fish oil emulsion (FOE) to modulate mitochondrial function. Diabetes-induced deregulation of the respiratory chain function as a result of diminished complex I activity (CI) and cytochrome c oxidase hyperactivity was associated with attenuation of antioxidant defense of isolated cortical mitochondria, monitored by SOD activity, the thiol content, the dityrosine and protein-lipid peroxidation adduct formation...
May 19, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28515386/autoxidation-of-fish-oil-blended-with-rice-bran-oil
#10
Shigeo Nakajima, Marie Takai, Chieko Hayashi, Takuo Tsuno, Yasushi Endo
Effects of rice bran oil on the oxidative and flavor stability of fish oil were investigated by the gas liquid chromatography-head space method. When fish oil blending with different ratio of rice bran oils was oxidized at room temperature in the dark, volatile compounds produced during autoxidation was measured by gas liquid chromatography. The amounts of volatile compounds were decreased with increased the ratio of blended rice bran oil as well as peroxide value. The level of propanal and acrolein which gave unpleasant flavor was also decreased with increased the ratio of blended rice bran oil...
May 17, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28506517/fish-oil-supplementation-benefits-the-murine-host-during-the-acute-phase-of-a-parasitic-infection-from-trypanosoma-cruzi
#11
Maria I Lovo-Martins, Aparecida D Malvezi, Rosiane V da Silva, Nágela G Zanluqui, Vera L H Tatakihara, Niels O S Câmara, Ana Paula L de Oliveira, Jean P S Peron, Marli C Martins-Pinge, Kevin L Fritsche, Phileno Pinge-Filho
Long-chain omega-3 polyunsaturated fatty acids (LC n-3 PUFA) are known to modulate a variety of immune cell functions. On occasion, this has led to diminished host resistance to certain viral and bacterial infections. Little is known about the impact of n-3 PUFA on host resistance to parasitic infection, however, based on results from a small study conducted more than two decades ago, we hypothesized that providing mice LC n-3 PUFA will diminish host resistance to Trypanosoma cruzi, the parasitic pathogen responsible for Chagas disease...
May 2017: Nutrition Research
https://www.readbyqxmd.com/read/28504166/functionality-of-chitosan-in-batter-formulations-for-coating-of-fish-sticks-effect-on-physicochemical-quality
#12
K A Martin Xavier, Hauzoukim, Nagalakshmi Kannuchamy, Amjad K Balange, M K Chouksey, Venkateshwarlu Gudipati
Chitosan is a natural polymer having diverse applications in food industry. The present study was undertaken to evaluate chitosan as a hydrocolloid in batter composition in developing enrobed fish sticks with better functional properties and improved quality. Different concentrations of chitosan gel were made in acetic acid medium and incorporated into batter for making enrobed fish sticks. Coating parameters, fat uptake, oil reduction, chemical quality parameters, instrumental texture analysis and colour were studied...
August 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28490088/antioxidant-activities-of-aqueous-extract-from-stevia-rebaudiana-stem-waste-to-inhibit-fish-oil-oxidation-and-identification-of-its-phenolic-compounds
#13
Hui Yu, Gangqiang Yang, Minoru Sato, Toshiyasu Yamaguchi, Toshiki Nakano, Yinci Xi
We investigated the potential for exploiting Stevia rebaudiana stem (SRS) waste as a source of edible plant-based antioxidants finding for the first time that the hot water extract of SRS had significantly higher antioxidant activity against fish oil oxidation than that of the leaf, despite SRS extract having lower total phenolic content, DPPH radical scavenging activity and ORAC values. To locate the major antioxidant ingredients, SRS extract was fractionated using liquid chromatography. Five phenolic compounds (primary antioxidant components in activity-containing fractions) were identified by NMR and HR-ESI-MS: vanillic acid 4-O-β-d-glucopyranoside (1), protocatechuic acid (2), caffeic acid (3), chlorogenic acid (4) and cryptochlorogenic acid (5)...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28488192/effects-of-dietary-green-tea-camellia-sinensis-l-supplementation-on-growth-performance-lipid-metabolism-and-antioxidant-status-in-a-sturgeon-hybrid-of-sterlet-huso-huso-%C3%A2-%C3%A2-%C3%A3-%C3%A2-acipenser-ruthenus-%C3%A2-fed-oxidized-fish-oil
#14
Soleiman Hasanpour, Amir Parviz Salati, Bahram Falahatkar, Hamid Mohammadi Azarm
Lipid content of diet is very susceptible to oxidation, especially when stored for a long time, so for evaluating protective effects of green tea in fish received oxidized oil, this study was done. Lipid content of diet was replaced by oxidized fish oil (OFO) in 0, 50, and 100%. Green tea extract (GTE) was added to diet in three levels, 0, 5, and 100 mg/kg giving a total of nine experimental diets. Two hundred and seventy sturgeon hybrid of Sterlet (Huso huso ♀ × Acipenser ruthenus ♂) with initial weight of 212...
May 10, 2017: Fish Physiology and Biochemistry
https://www.readbyqxmd.com/read/28487227/melaleuca-alternifolia-essential-oil-nanoparticles-ameliorate-the-hepatic-antioxidant-oxidant-status-of-silver-catfish-experimentally-infected-with-pseudomonas-aeruginosa
#15
Carine F Souza, Matheus D Baldissera, Naiara S Guarda, Yãnaí S Bollick, Rafael N Moresco, Isabel Cristina M Brusque, Roberto C V Santos, Bernardo Baldisserotto
Oxidative stress has been recognized as a conjoint pathological mechanism that contributes to initiation and progression of liver injury, such as that caused by bacterial diseases. Natural antioxidants are considered a rational curative strategy to prevent and cure hepatic diseases involved with oxidative stress. Thus, the aim of this study was to evaluate, for the first time, whether treatment with bactericidal Melaleuca alternifolia essential oil (TTO) nanoparticles prevents or reduces the hepatic damage in silver catfish (Rhamdia quelen) experimentally infected with Pseudomonas aeruginosa (PAO1)...
July 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28469193/omega-3-long-chain-polyunsaturated-fatty-acid-content-and-oxidation-state-of-fish-oil-supplements-in-new-zealand
#16
Gerard Bannenberg, Craig Mallon, Holly Edwards, Derek Yeadon, Kevin Yan, Holly Johnson, Adam Ismail
Forty-seven fish oil products available on the New Zealand market were analyzed for eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) content, as well as for oxidative status in a collaborative effort by several analytical laboratories. Of the tested products, 72%, 86% and 77% complied with voluntary industry-set maximum limits on Peroxide Value (PV), para-Anisidine Value (p-AV), and TOTOX, respectively. 91% of the products complied with EPA/DHA content claims. All fish oils complied with a p-AV limit of 30, 98% with a PV limit of 10 meq O2/kg, and 96% with a calculated TOTOX value of 50, which are less stringent limits used by the European and British Pharmacopeia and the Australian authorities...
May 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28460917/healthy-spanish-salchich%C3%A3-n-enriched-with-encapsulated-n-3-long-chain-fatty-acids-in-konjac-glucomannan-matrix
#17
Jose M Lorenzo, Paulo Eduardo Sichetti Munekata, Mirian Pateiro, Paulo Cezar Bastianello Campagnol, Ruben Domínguez
Reduction of fat content and improving fatty acid composition were the strategies used to reformulate Spanish salchichón with better lipid content by partial substitution of pork backfat by microencapsulated fish oil in konjac glucomannan matrix. For the present study, four different batches were manufactured: control (CO) with 100% of pork backfat and ME25, ME50 and ME75 where the pork backfat was replaced with 25, 50 and 75% by microencapsulated fish oil, respectively. The fat replacement by microencapsulated fish oil was accompanied by a decrease (P<0...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28455142/a-fish-oil-diet-induces-mitochondrial-uncoupling-and-mitochondrial-unfolded-protein-response-in-epididymal-white-adipose-tissue-of-mice
#18
Shylesh Bhaskaran, Archana Unnikrishnan, Rojina Ranjit, Rizwan Qaisar, Gavin Pharaoh, Stephanie Matyi, Michael Kinter, Sathyaseelan S Deepa
White adipose tissue (WAT) mitochondrial dysfunction is linked to the pathogenesis of obesity driven insulin resistance. Dietary conditions that alter fat mass are known to affect white adipocyte mitochondrial function, however, the impact of high calorie diets on white adipocyte mitochondria is not fully understood. The aim of this study is to assess the effect of a diet rich in saturated or polyunsaturated fat on mitochondrial unfolded protein response (UPR(mt)), a retrograde signaling response that maintains mitochondrial homeostasis, in epididymal WAT (eWAT)...
April 26, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28449985/encapsulation-of-fish-oil-into-hollow-solid-lipid-micro-and-nanoparticles-using-carbon-dioxide
#19
Junsi Yang, Ozan Nazim Ciftci
Fish oil was encapsulated in hollow solid lipid micro- and nanoparticles formed from fully hydrogenated soybean oil (FHSO) using a novel green method based on atomization of supercritical carbon dioxide (SC-CO2)-expanded lipid. The highest fish oil loading efficiency (97.5%, w/w) was achieved at 50%, w/w, initial fish oil concentration. All particles were spherical and in the dry free-flowing form; however, less smooth surface with wrinkles was observed when the initial fish oil concentration was increased up to 50%...
September 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28420234/raman-spectroscopy-of-fish-oil-capsules-polyunsaturated-fatty-acid-quantitation-plus-detection-of-ethyl-esters-and-oxidation
#20
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 containing triacylglyceride oils...
May 3, 2017: Journal of Agricultural and Food Chemistry
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