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fish oil and oxidation

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https://www.readbyqxmd.com/read/29144994/gene-pathways-associated-with-mitochondrial-function-oxidative-stress-and-telomere-length-are-differentially-expressed-in-the-liver-of-rats-fed-lifelong-on-virgin-olive-sunflower-or-fish-oils
#1
Alfonso Varela-Lopez, María Patricia Pérez-López, César Luis Ramirez-Tortosa, Maurizio Battino, Sergio Granados-Principal, María Del Carmen Ramirez-Tortosa, Julio José Ochoa, Laura Vera-Ramirez, Francesca Giampieri, José Luis Quiles
This study investigates the effect of lifelong intake of different fat sources rich in monounsaturated (virgin olive oil), n6 polyunsaturated (sunflower oil) or n3 polyunsaturated (fish oil) fatty acids in the aged liver. Male Wistar rats fed lifelong on diets differing in the fat source were killed at 6 and at 24 months of age. Liver histopathology, mitochondrial ultrastructure, biogenesis, oxidative stress, mitochondrial electron transport chain, relative telomere length and gene expression profiles were studied...
September 20, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29142166/fish-oil-feeding-reverses-hepatomegaly-and-disrupted-hepatic-function-due-to-the-lack-of-fxr-signaling
#2
Masaaki Miyata, Kouhei Shinno, Tomoki Kinoshita, Yuichi Kinoshita, Yoshimasa Sugiura
Mice lacking farnesoid X receptor (FXR) are used as a model for nonalcoholic fatty liver disease because their livers exhibit hepatomegaly, hepatic steatosis, and hepatic inflammation. The influence of fish oil feeding on hepatomegaly and disrupted hepatic function was investigated using female Fxr-null mice and wild-type mice fed a fish oil diet (2% fish oil and 2% corn oil) or a control diet (4% corn oil) for 4 weeks. Hepatic n-3 polyunsaturated fatty acid (PUFA) levels, including 22:6 n-3 docosahexaenoic acid (DHA) and 20:5 n-3 eicosapentaenoic acid (EPA) were significantly higher in the fish oil group than those in the control group of Fxr-null mice and wild-type mice...
2017: Journal of Toxicological Sciences
https://www.readbyqxmd.com/read/29128114/saturated-or-unsaturated-fat-supplemented-maternal-diets-influence-omental-adipose-tissue-proteome-of-suckling-goat-kids
#3
Laura Restelli, Andreia T Marques, Giovanni Savoini, Guido Invernizzi, Michela Carisetti, Cristina Lecchi, Emoke Bendixen, Fabrizio Ceciliani
The aim of the present study was to investigate how maternal diet can influence the adipose tissue of goat kids. Omental adipose tissue proteomes of goat-kids from mothers fed with diet enriched with stearic acid (ST-kids), fish oil (FO-kids) and standard diets (CTRL) were determined by quantitative iTRAQ 2D-LC-MS/MS analysis. Twenty proteins were found to be differentially expressed in suckling kids' omental adipose tissue. Stearic acid induces changes in a higher number of proteins when compared to fish oil...
November 3, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29125626/impact-of-air-frying-on-cholesterol-and-fatty-acids-oxidation-in-sardines-protective-effects-of-aromatic-herbs
#4
Fernanda S Ferreira, Geni R Sampaio, Laura M Keller, Alexandra C H F Sawaya, Davy W H Chávez, Elizabeth A F S Torres, Tatiana Saldanha
The high temperatures used to fry fish may induce thermo-oxidation of cholesterol, forming cholesterol oxidation products (COPs). COPs have been associated to coronary heart diseases, atherosclerosis, and other chronic diseases. Air fryers are an alternative thermal process technology to fry foods without oil, and are considered a healthier cooking method. This study is the 1st to evaluate the formation of COPs and the degradation of polyunsaturated fatty acids (PUFAs) in air-fried sardine fillets. Furthermore, we evaluated the effect of fresh herbs added as natural antioxidants to sardines subjected to air frying...
November 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/29124388/measuring-the-impact-of-olive-pomace-enriched-biscuits-on-the-gut-microbiota-and-its-metabolic-activity-in-mildly-hypercholesterolaemic-subjects
#5
Lorenza Conterno, Francesca Martinelli, Matteo Tamburini, Francesca Fava, Andrea Mancini, Maddalena Sordo, Massimo Pindo, Stefan Martens, Domenico Masuero, Urska Vrhovsek, Claudia Dal Lago, Gabriele Ferrario, Mario Morandini, Kieran Tuohy
PURPOSE: Olive pomace is a major waste product of olive oil production but remains rich in polyphenols and fibres. We measured the potential of an olive pomace-enriched biscuit formulation delivering 17.1 ± 4.01 mg/100 g of hydroxytyrosol and its derivatives, to modulate the composition and metabolic activity of the human gut microbiota. METHODS: In a double-blind, controlled parallel dietary intervention 62 otherwise healthy hypercholesterolemic (total plasma cholesterol 180-240 mg/dl) subjects were randomly assigned to eat 90 g of olive pomace-enriched biscuit (olive-enriched product, OEP) or an isoenergetic control (CTRL) for 8 weeks...
November 9, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29121093/fish-oil-omega-3-polyunsaturated-fatty-acids-attenuate-oxidative-stress-induced-dna-damage-in-vascular-endothelial-cells
#6
Chiemi Sakai, Mari Ishida, Hideo Ohba, Hiromitsu Yamashita, Hitomi Uchida, Masao Yoshizumi, Takafumi Ishida
OBJECTIVE: Omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), likely prevent cardiovascular disease, however their mechanisms remain unclear. Recently, the role of DNA damage in atherogenesis has been receiving considerable attention. Here, we investigated the effects of EPA and DHA on DNA damage in vascular endothelial cells to clarify their antiatherogenic mechanisms. METHODS AND RESULTS: We determined the effect of EPA and DHA on H2O2-induced DNA damage response in human aortic endothelial cells...
2017: PloS One
https://www.readbyqxmd.com/read/29092397/alpha-linolenic-acid-from-perilla-frutescens-var-japonica-oil-protects-a%C3%AE-induced-cognitive-impairment-through-regulation-of-app-processing-and-a%C3%AE-degradation
#7
Ah Young Lee, Myoung Hee Lee, Sanghyun Lee, Eun Ju Cho
Alzheimer's disease (AD) is characterized by progressive cognitive and memory impairment. The major pathological hallmark of AD is the accumulation of amyloid beta (Aβ), which is produced from the amyloid precursor protein (APP) through cleavage of β- and γ-secretase. Recently, dietary plant oil containing ω-3 polyunsaturated fatty acid has become attractive alternative sources to fish oil containing eicosapentaenoic acid or docosahexaenoic acid (DHA). We investigated whether ALA isolated from perilla oil has direct effects on improvement of cognitive ability and molecular mechanisms in APP processing in comparison with DHA...
November 2, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29080687/a-comparative-study-difference-in-omega-6-omega-3-balance-and-saturated-fat-in-diets-for-atlantic-salmon-salmo-salar-affect-immune-fat-metabolism-oxidative-and-apoptotic-gene-expression-and-eicosanoid-secretion-in-head-kidney-leukocytes
#8
Elisabeth Holen, Pedro Araujo, Nini H Sissener, Grethe Rosenlund, Rune Waagbø
The aim of this study was to compare how different dietary vegetable oil n-6/n-3 ratios affect gene responses involved in inflammation, signaling pathways, fatty acid synthesis and oxidation, oxidation and apoptosis as well as eicosanoid production in salmon head kidney tissues and isolated head kidney leukocytes. Salmon smolts (200 g) were fed four different diets where the main lipid components were palm oil (n-6/n-3 ratio = 0.7), rapeseed oil (n-6/n-3 ratio = 0.9), and soybean oil (n-6/n-3 ratio = 2...
October 30, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29058947/the-oxidative-stability-of-omega-3-oil-in-water-nanoemulsion-systems-suitable-for-functional-food-enrichment-a-systematic-review-of-the-literature
#9
Linda Bush, Leo Stevenson, Katie E Lane
There is growing demand for functional food products enriched with long chain omega-3 fatty acids (LCω3PUFA). Nanoemulsions, systems with extremely small droplet sizes have been shown to increase LCω3PUFA bioavailability. However, nanoemulsion creation and processing methods may impact on the oxidative stability of these systems. The present systematic review collates information from studies that evaluated the oxidative stability of LCω3PUFA nanoemulsions suitable for use in functional foods. The systematic search identified seventeen articles published during the last 10 years...
October 23, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/29051014/furan-fatty-acids-beneficial-or-harmful-to-health
#10
REVIEW
Long Xu, Andrew J Sinclair, Muniba Faiza, Daoming Li, Xianlin Han, Huiyong Yin, Yonghua Wang
Furan fatty acids are found in plants, algae, and fish, and reported to have some positive health benefits, including anti-oxidant and anti-inflammatory activities, and inhibition of non-enzymatic lipid peroxidation. A major metabolite of furan fatty acids, 3-carboxy-4-methyl-5-propyl-2-furanpropanoic acid (CMPF), has been reported to be increased in patients who progress from prediabetes to type 2 diabetes, although CMPF is not necessarily associated with impaired glucose metabolism. Other studies report that CMPF levels are lower in subjects with diabetes than control subjects...
October 16, 2017: Progress in Lipid Research
https://www.readbyqxmd.com/read/29048172/effects-of-different-lipophilized-ferulate-esters-in-fish-oil-enriched-milk-partitioning-interaction-protein-and-lipid-oxidation
#11
Xujian Qiu, Charlotte Jacobsen, Pierre Villeneuve, Erwann Durand, Ann-Dorit Moltke Sørensen
Antioxidant effects of ferulic acid and lipophilized ferulate esters were investigated in fish oil-enriched milk. Methyl ferulate (C1) and ethyl ferulate (C2) more efficiently prevented lipid oxidation than dodecyl ferulate (C12) did, followed by ferulic acid (C0). The combination of C1 or C2 with C12 could have a "synergistic" effect indicated by peroxide value, hexanal, and 1-penten-3-ol analysis results. These antioxidants also showed protein oxidation inhibition effects. The most effective antioxidants (C1 and C2) had the highest concentration in the precipitate phase but the lowest concentration in the aqueous phase, which was the opposite of the partitioning of C0...
October 19, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29039041/evaluation-of-antioxidant-potential-of-essential-oils-of-some-commonly-used-indian-spices-in-in-vitro-models-and-in-food-supplements-enriched-with-omega-6-and-omega-3-fatty-acids
#12
Anwesa Bag, Rabi Ranjan Chattopadhyay
The aim of this study was to evaluate and compare the antioxidant potential of essential oils of some commonly used Indian spices (black pepper, cinnamon, clove, coriander and cumin) in various in vitro models and in food supplements enriched with omega-6 and omega-3 fatty acids. In vitro antioxidant potential was evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging and Fe(2+) ion-chelating methods and lipid oxidation stabilisation potential was evaluated in bulk soybean oil-fish oil mixture and their oil-in-water emulsions using peroxide value (PV), p-anisidine value (p-AV) and total oxidation value as indicators of oxidation...
October 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29035816/docosahexaenoic-acid-attenuates-carbon-tetrachloride-induced-hepatic-fibrosis-in-rats
#13
Jianlin He, Kaikai Bai, Bihong Hong, Feng Zhang, Shizhong Zheng
Fish oil containing docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) has been reported to exert beneficial health effects, including hepatoprotection. However, the effect of DHA alone has not been well studied, and the mechanism is not fully understood. In the present study, we reported the protective effect of DHA on carbon tetrachloride (CCl4) induced hepatic fibrosis. Compared with the control group, the CCl4 group showed hepatic damage as evidenced by histological changes and elevation in serum transaminase activity, fibrosis, inflammation and oxidative stress levels...
October 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/29030883/polyunsaturated-fatty-acids-influence-inflammatory-markers-in-a-cellular-model-for-canine-osteoarthritis
#14
N Adler, A Schoeniger, H Fuhrmann
Although it is well recognized that dietary supplementation with fish oil improves clinical symptoms in dogs suffering from osteoarthritis, the molecular basis for the dietary benefit is not yet completely resolved in dogs. This study was designed to further clarify how polyunsaturated fatty acids (PUFA) affect key factors of cartilage degeneration in a canine cell culture system mimicking osteoarthritis. Canine chondrocytes were incubated either without or with 10 μm of eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), arachidonic acid (AA) or 3...
October 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29023751/the-use-of-factorial-design-to-evaluate-the-oxidation-of-oils-containing-different-types-of-omega-3-fatty-acids
#15
Thamyris Dias Fabiano Agnes, Gabriela Grassmann Roschel, Inar Alves Castro
N3 FA promote beneficial effects on cardiovascular diseases, but they are highly susceptible to oxidation, which leads to the formation of potentially toxic secondary products. In this study, the antioxidant capacity of natural compounds (sinapic acid and rutin) was evaluated using an accelerated model to oxidize the oils. Five inducers (Temperature, Fe(2+) , AAPH, Ascorbyl palmitate and AMVN) were combined in a factorial design to accelerate the oxidation of three oils (flaxseed, echium and fish) containing different sources of n3 FA...
October 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28987035/the-psychoneuroimmunological-role-of-omega-3-polyunsaturated-fatty-acids-in-major-depressive-disorder-and-bipolar-disorder
#16
Ian Hunter Rutkofsky, Anser Saeed Khan, Sindhu Sahito, Vikram Kumar
Context • Psychoneuroimmunology is the interdisciplinary study that links behavioral health with the neuroendocrinal system and investigates that link's bidirectional impact on the human immune system. Mechanistic studies have shown how omega-3 polyunsaturated fatty acids (PUFAs), like those found in fish oil, can modulate key pathways involved in inflammation, sympathetic activity, oxidative stress, transcription factors, and inflammatory cytokine production. Objective • The research team intended to investigate the effects that PUFAs have on the brain and the immune system, including the effects of proinflammatory cytokines and oxidative stress, and their therapeutic benefits in major depressive disorder (MDD) and bipolar disorder, either as an alternative monotherapy or a complementary adjunct treatment...
July 2017: Advances in Mind-body Medicine
https://www.readbyqxmd.com/read/28958559/improved-oxidative-stability-of-fish-oil-emulsion-by-grafted-ovalbumin-catechin-conjugates
#17
Jin Feng, He Cai, Hua Wang, Chunyang Li, Songbai Liu
Conjugates of ovalbumin (OVA) with (+)-catechin (C), (-)-epigallocatechin (EGC) or (-)-epigallocatechin gallate (EGCG) were synthesized through a free-radical grafting approach. The covalent binding between OVA and catechins was confirmed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). OVA-catechin conjugates were further characterized by a combination of steady-state fluorescence spectroscopy, differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy and circular dichroism (CD) analyses...
February 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28954545/effects-of-dietary-sesame-oil-on-growth-performance-chemical-composition-lipid-oxidation-and-sensory-characteristics-of-rainbow-trout-oncorhynchus-mykiss
#18
Azar Hematzadeh, Mohamad Ali Jalali Sayed
The present study, the effects of dietary sesame oil (SO) on growth performance and fillet composition of rainbow trout (Oncorhynchus mykiss) were investigated. Twenty-five fish were randomly allocated in three groups by three replication, in mean initial weight 53.3 g in each tank. Experimental diets consisted of fish oil (FO), sesame oil (SO) and 1:1 blends of two oils, fish oil and sesame oil (FOSO). Dietary sesame oil had no significant effect on growth rate or feed conversion ratio. Similarly, no significant differences were observed between dietary treatments for ash content in fillet of fish...
September 28, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28942825/a-single-administration-of-fish-oil-inhibits-the-acute-inflammatory-response-in-rats
#19
Laura Lícia Milani de Arruda, Franciele Queiroz Ames, Damila Rodrigues de Morais, Renata Grespan, Ana Paula Maziero Gil, Maria Angélica Raffaini Covas Pereira Silva, Jesuí Vergílio Visentainer, Roberto Kenji Nakamura Cuman, Ciomar Aparecida Bersani-Amado
OBJECTIVE: To investigate the antiinflammatory effects of a single administration of fish oil (FO) on the acute inflammatory response. METHODS: The paw edema and pleurisy models were used to evaluate the effects of FO dissolved in olive oil (FOP) orally administered in a single dose in rats. Nitric oxide (NO) concentrations in the pleural exudate were performed according to the Griess method and the cytokine concentrations were determined by Luminex bead-based multiplex assay...
August 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28893413/fish-oil-emulsion-supplementation-might-improve-quality-of-life-of-diabetic-patients-due-to-its-antioxidant-and-anti-inflammatory-properties
#20
Lucia Laubertová, Katarína Koňariková, Helena Gbelcová, Zdeňka Ďuračková, Jana Muchová, Iveta Garaiova, Ingrid Žitňanová
Diabetes-related complications, including cardiovascular disease, retinopathy, nephropathy, and neuropathy, are a significant cause of increased morbidity and mortality among people with diabetes. Previous studies have confirmed that hyperglycemia has pro-oxidative and proinflammatory properties which cause diabetic complications. We hypothesized that supplementation of fish oil emulsion (FOE), rich in omega-3 polyunsaturated fatty acids, to diabetic patients might reduce hyperglycemia-induced pathological changes due to specific properties of FOE...
August 3, 2017: Nutrition Research
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