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docosahexaenoic acid

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https://www.readbyqxmd.com/read/28101948/influence-of-the-marine-feeding-area-on-the-muscle-and-egg-fatty-acid-composition-of-atlantic-salmon-salmo-salar-spawners-estimated-from-the-scale-stable-isotopes
#1
J Torniainen, M J Kainz, R I Jones, M Keinänen, P J Vuorinen, M Kiljunen
Fatty acids in muscle tissue and eggs of female Atlantic salmon Salmo salar spawners were analysed to evaluate the dietary quality of their final feeding areas in the Baltic Sea. The final likely feeding area was identified by comparing stable carbon and nitrogen isotope composition of the outermost growth region (final annulus) of scales of returned S. salar with that of reference S. salar caught from different feeding areas. Some overlap of stable-isotope reference values among the three areas, in addition to prespawning fasting, decreased the ability of muscle tri-acylglycerols to discriminate the final likely feeding area and the area's dietary quality...
January 18, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28101457/therapeutic-effects-of-omega-3-fatty-acids-on-chronic-kidney-disease-associated-pruritus-a-literature-review
#2
REVIEW
Yunes Panahi, Simin Dashti-Khavidaki, Farahnoosh Farnood, Hamid Noshad, Mahsa Lotfi, Afshin Gharekhani
Uremic pruritus remains one of the most tormenting, frequent and potentially disabling problem in chronic kidney disease (CKD) patients. However, an area of substantial etiological interest with relation to uremic pruritus is the essential fatty acids deficiency. So we performed a literature review to elucidate the efficacy of omega-3 fatty acids on uremic pruritus. This review evaluated all of the studies published in English language, focusing on the clinical effects of omega-3 fatty acids on uremic pruritus...
December 2016: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/28100887/production-of-a-health-beneficial-food-emulsifier-by-enzymatic-partial-hydrolysis-of-phospholipids-obtained-from-the-head-of-autumn-chum-salmon
#3
A K M Azad Shah, Toshihiro Nagao, Hideyuki Kurihara, Koretaro Takahashi
Phospholipids and their partial hydrolysates, namely lysophospholipids (LPLs), have been widely used in food, pharmaceutical, and cosmetic products as highly efficient emulsifiers. This study was conducted to produce docosahexaenoic acid (DHA)-esterified LPLs by enzymatic modification of phospholipids obtained from the head of autumn chum salmon (Oncorhynchus keta). The emulsifying properties of the obtained LPLs were also evaluated. Two different types of substrates of salmon head phospholipids were prepared via silica gel and cold acetone precipitation...
January 18, 2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28095338/docosahexaenoic-acid-attenuates-lps-stimulated-inflammatory-response-by-regulating-the-ppar%C3%AE-nf-%C3%AE%C2%BAb-pathways-in-primary-bovine-mammary-epithelial-cells
#4
REVIEW
Xuexiu He, Weijian Liu, Mingyu Shi, Zhengtao Yang, Xichen Zhang, Pengtao Gong
BACKGROUND: Docosahexaenoic acid (DHA) is a major dietary n-3 polyunsaturated fatty acid (n-3 PUFA) in fish oil, and has been reported to possess a number of biological properties, such as anti-inflammatory, antitumor and immune-regulatory properties. However, whether DHA exert anti-inflammatory effect on lipopolysaccharide (LPS)-induced mastitis remains unclear. In this study, we investigate the effect and underlying mechanisms of the effects of DHA on LPS-stimulated primary bovine mammary epithelial cells (bMEC)...
January 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28095320/lethal-dysregulation-of-energy-metabolism-during-embryonic-vitamin-e-deficiency
#5
Melissa McDougall, Jaewoo Choi, Hye-Kyeong Kim, Gerd Bobe, J Frederik Stevens, Enrique Cadenas, Robert Tanguay, Maret G Traber
Vitamin E (α-tocopherol, VitE) was discovered in 1922 for its role in preventing embryonic mortality. We investigated the underlying mechanisms causing lethality using targeted metabolomics analyses of zebrafish VitE-deficient embryos over five days of development, which coincided with their increased morbidity and mortality. VitE deficiency resulted in peroxidation of docosahexaenoic acid (DHA), depleting DHA-containing phospholipids, especially phosphatidylcholine, which also caused choline depletion. This increased lipid peroxidation also increased NADPH oxidation, which depleted glucose by shunting it to the pentose phosphate pathway...
January 14, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28094560/systemic-metabolite-changes-in-wild-type-c57bl-6-mice-fed-black-raspberries
#6
Pan Pan, Chad W Skaer, Hsin-Tzu Wang, Michael A Kreiser, Steven M Stirdivant, Kiyoko Oshima, Yi-Wen Huang, Matthew R Young, Li-Shu Wang
INTRODUCTION: Freeze-dried black raspberries (BRBs) elicit chemopreventive effects against colorectal cancer in humans and in rodents. The objective of this study was to investigate potential BRB-caused metabolite changes using wild-type (WT) C57BL/6 mice. METHODS AND RESULTS: WT mice were fed either control diet or control diet supplemented with 5% BRBs for 8 wk. A nontargeted metabolomic analysis was conducted on colonic mucosa, liver, and fecal specimens collected from both diet groups...
January 17, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28089858/glucose-amino-acids-and-fatty-acids-directly-regulate-ghrelin-and-nucb2-nesfatin-1-in-the-intestine-and-hepatopancreas-of-goldfish-carassius-auratus-in-vitro
#7
Juan Ignacio Bertucci, Ayelén Melisa Blanco, Luis Fabián Canosa, Suraj Unniappan
Ghrelin and nesfatin-1 are two peptidyl hormones primarily involved in food intake regulation. We previously reported that the amount of dietary carbohydrates, protein and lipids modulates the expression of these peptides in goldfish in vivo. In the present work, we aimed to characterize the effects of single nutrients on ghrelin and nesfatin-1 in the intestine and hepatopancreas. First, immunolocalization of ghrelin and NUCB2/nesfatin-1 in goldfish hepatopancreas cells was studied by immunohistochemistry. Second, the effects of 2 and 4h-long exposures of cultured intestine and hepatopancreas sections to glucose, L-tryptophan, oleic acid, linolenic acid (LNA), eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on ghrelin and nesfatin-1 gene and protein expression were studied...
January 13, 2017: Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
https://www.readbyqxmd.com/read/28089724/potential-applications-of-lipid-peroxidation-products-f4-neuroprostanes-f3-neuroprostanesn-6-dpa-f2-dihomo-isoprostanes-and-f2-isoprostanes-in-the-evaluation-of-the-allograft-function-in-renal-transplantation
#8
Ignacio De Las Heras-Gómez, Sonia Medina, Teresa Casas-Pina, Lidia Marín-Soler, Anna Tomás, Pedro Martínez-Hernández, Camille Oger, Jean-Marie Galano, Thierry Durand, Luisa Jimeno, Santiago Llorente, Elena Lozoya, Federico Ferreres, Ángel Gil-Izquierdo
F4-neuroprostanes, F3-neuroprostanesn-6 DPA, and F2-dihomo-isoprostanes, metabolites of non-enzymatic lipid peroxidation of polyunsaturated fatty acids [docosahexaenoic acid, n-6 docosapentanoic acid, and adrenic acid respectively], have become important biomarkers for oxidative stress in several diseases like epilepsy and alzheimer. These biomarkers and the 15-F2t-isoprostane (also known as 8-iso-PGF2α), a F2-isoprostane isomer measured as reference oxidative marker at systemic level, were analyzed by UHPLC-QqQ-MS/MS in the urine of 60 renal recipients from cadaveric donors of the Nephrology Unit of the University Hospital Virgen de la Arrixaca, at six different times during the first six months after renal transplantation, and were compared with a control group of 60 healthy subjects from the same hospital...
January 12, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28089169/the-role-of-n-3-polyunsaturated-fatty-acids-n-3pufas-in-affective-disorders
#9
REVIEW
Valentina Ciappolino, Giuseppe Delvecchio, Carlo Agostoni, Alessandra Mazzocchi, Alfredo Carlo Altamura, Paolo Brambilla
BACKGROUND: Among emerging treatments for depressive disorders several studies suggested that n-3 polyunsaturated fatty acids (n-3PUFAs) supplementation can be used. However, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) differ in terms of biochemistry, metabolism and therapeutic effects. Therefore, a clear picture of their specific and different role on affective disorders has not yet emerged. OBJECTIVES: To investigate the effects of n-3PUFAs on affective disorders including major depression, bipolar disorder and perinatal depression...
December 30, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28088639/docosahexaenoic-acid-loaded-lipid-nanoparticles-with-bactericidal-activity-against-helicobacter-pylori
#10
Catarina Leal Seabra, Cláudia Nunes, Maria Gomez-Lazaro, Marta Correia, José Carlos Machado, Inês C Gonçalves, Celso A Reis, Salette Reis, M Cristina L Martins
Docosahexaenoic acid (DHA), an omega-3 polyunsaturated fatty acid present in fish oil, has been described as a promising molecule to the treatment of Helicobacter pylori gastric infection. However, due to its highly unsaturated structure, DHA can be easily oxidized loosing part of its bioactivity. This work aims the nanoencapsulation of DHA to improve its bactericidal efficacy against H. pylori. DHA was loaded into nanostructured lipid carriers (NLC) produced by hot homogenization and ultrasonication using a blend of lipids (Precirol ATO5(®), Miglyol-812(®)) and a surfactant (Tween 60(®))...
January 11, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28088293/the-essentiality-of-arachidonic-acid-in-addition-to-docosahexaenoic-acid-for-brain-growth-and-function
#11
Akiko Harauma, Hidemi Yasuda, Erisa Hatanaka, Manabu T Nakamura, Norman Salem, Toru Moriguchi
The essentiality of arachidonic acid (ARA) and docosahexaenoic acid (DHA) for growth and brain function using delta-6-desaturase knockout (D6D-KO) mice and a novel artificial rearing method was investigated. Newborn male wild type (WT) and homozygous D6D-KO pups were separated from their dams within 48h and fed artificial milk containing α-linolenic acid and linoleic acid (Cont), or supplemented with ARA, DHA or both (ARA+DHA). After weaning, each group was fed diets similar to artificial milk in fatty acid composition for 7 weeks...
January 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28087294/bioactive-metabolites-of-docosahexaenoic-acid
#12
REVIEW
Ondrej Kuda
Docosahexaenoic acid (DHA) is an essential fatty acid that is recognized as a beneficial dietary constituent and as a source of the anti-inflammatory specialized proresolving mediators (SPM): resolvins, protectins and maresins. Apart from SPMs, other metabolites of DHA also exert potent biological effects. This article summarizes current knowledge on the metabolic pathways involved in generation of DHA metabolites. Over 70 biologically active metabolites have been described, but are often discussed separately within specific research areas...
January 10, 2017: Biochimie
https://www.readbyqxmd.com/read/28086928/resolvin-rvd2-reduces-hypothalamic-inflammation-and-rescues-mice-from-diet-induced-obesity
#13
Livia B Pascoal, Bruna Bombassaro, Albina F Ramalho, Andressa Coope, Rodrigo F Moura, Felipe Correa-da-Silva, Leticia Ignacio-Souza, Daniela Razolli, Diogo de Oliveira, Rodrigo Catharino, Licio A Velloso
BACKGROUND: Diet-induced hypothalamic inflammation is an important mechanism leading to dysfunction of neurons involved in controlling body mass. Studies have shown that polyunsaturated fats can reduce hypothalamic inflammation. Here, we evaluated the presence and function of RvD2, a resolvin produced from docosahexaenoic acid, in the hypothalamus of mice. METHODS: Male Swiss mice were fed either chow or a high-fat diet. RvD2 receptor and synthetic enzymes were evaluated by real-time PCR and immunofluorescence...
January 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28078500/effects-of-different-omega-3-sources-fish-oil-krill-oil-and-green-lipped-mussel-against-cytokine-mediated-canine-cartilage-degradation
#14
Kittisak Buddhachat, Puntita Siengdee, Siriwadee Chomdej, Kumpanart Soontornvipart, Korakot Nganvongpanit
Our purpose was to evaluate the protective effect of three marine omega-3 sources, fish oil (FO), krill oil (KO), and green-lipped mussel (GLM) against cartilage degradation. Canine cartilage explants were stimulated with either 10 ng/mL interleukin-1β (IL-1β) or IL-1β/oncostatin M (10 ng/mL each) and then treated with various concentrations of docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA; 3 and 30 μg/mL), FO, KO, or GLM (250, 500, and 1000 μg/mL) for 28 days. Gene expression was then investigated in primary canine chondrocytes...
January 11, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28078253/effects-of-eicosapentaenoic-acid-and-docosahexaenoic-acid-on-mitochondrial-dna-replication-and-pgc-1%C3%AE-gene-expression-in-c2c12-muscle-cells
#15
Mak-Soon Lee, Yoonjin Shin, Sohee Moon, Seunghae Kim, Yangha Kim
Mitochondrial biogenesis is a complex process requiring coordinated expression of nuclear and mitochondrial genomes. The peroxisome proliferator-activated receptor gamma co-activator 1-alpha (PGC-1α) is a key regulator of mitochondrial biogenesis, and it controls mitochondrial DNA (mtDNA) replication within diverse tissues, including muscle tissue. The aim of this study was to investigate the effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) on mtDNA copy number and PGC-1α promoter activity in C2C12 muscle cells...
December 2016: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/28077733/identification-of-potential-plasma-biomarkers-for-nonalcoholic-fatty-liver-disease-by-integrating-transcriptomics-and-proteomics-in-laying-hens
#16
Meng-Tsz Tsai, Yu-Jen Chen, Ching-Yi Chen, Mong-Hsun Tsai, Chia-Li Han, Yu-Ju Chen, Harry J Mersmann, Shih-Torng Ding
BACKGROUND: Prevalent worldwide obesity is associated with increased incidence of nonalcoholic fatty liver disease (NAFLD) and metabolic syndrome. The identification of noninvasive biomarkers for NAFLD is of recent interest. Because primary de novo lipogenesis occurs in chicken liver as in human liver, adult chickens with age-associated steatosis resembling human NAFLD is an appealing animal model. OBJECTIVE: The objective of this study was to screen potential biomarkers in the chicken model for NAFLD by transcriptomic and proteomic analysis...
January 11, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28075380/splenic-immune-response-is-down-regulated-in-c57bl-6j-mice-fed-eicosapentaenoic-acid-and-docosahexaenoic-acid-enriched-high-fat-diet
#17
Nikul K Soni, Alastair B Ross, Nathalie Scheers, Otto I Savolainen, Intawat Nookaew, Britt G Gabrielsson, Ann-Sofie Sandberg
Dietary n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are associated with reduction of inflammation, although the mechanisms are poorly understood, especially how the spleen, as a secondary lymphoid organ, is involved. To investigate the effects of EPA and DHA on spleen gene expression, male C57BL/6J mice were fed high fat diets (HFD) differing in fatty acid composition, either based on corn oil (HFD-CO), or CO enriched with 2 g/100 g EPA and DHA (HFD-ED), for eight weeks. Spleen tissue was analyzed using transcriptomics and for fatty acids profiling...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28074891/intake-of-vitamin-c-vitamin-e-selenium-zinc-and-polyunsaturated-fatty-acids-and-upper-respiratory-tract-infection-a-prospective-cohort-study
#18
S E Raposo, E Fondell, P Ström, O Bälter, S E Bonn, O Nyrén, A Plymoth, K Bälter
BACKGROUND/OBJECTIVES: Antioxidants and polyunsaturated fatty acids (PUFAs) have a role in the human immune defense and may affect the susceptibility to upper respiratory tract infection (URTI). To examine dietary intake of vitamin C, vitamin E, selenium, zinc and PUFAs in relation to URTI incidence in a prospective cohort study. SUBJECTS/METHODS: A total of 1533 Swedish women and men aged 25-64 years were followed for nine months during 2011-2012. Information on dietary intake was assessed through a web-based food frequency questionnaire, and events of URTI were self-reported prospectively as they occurred...
January 11, 2017: European Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28074489/a-novel-nf-%C3%AE%C2%BAb-inhibitor-edasalonexent-cat-1004-in-development-as-a-disease-modifying-treatment-for-patients-with-duchenne-muscular-dystrophy-phase-1-safety-pharmacokinetics-and-pharmacodynamics-in-adult-subjects
#19
Joanne M Donovan, Michael Zimmer, Elliot Offman, Toni Grant, Michael Jirousek
In Duchenne muscular dystrophy (DMD), NF-κB is activated in skeletal muscle from infancy regardless of the underlying dystrophin mutation and drives inflammation and muscle degeneration while inhibiting muscle regeneration. Edasalonexent (CAT-1004) is a bifunctional orally administered small molecule that covalently links 2 compounds known to inhibit NF-κB, salicylic acid and docosahexaenoic acid (DHA). Edasalonexent is designed to inhibit activated NF-κB upon intracellular cleavage to these bioactive components...
January 11, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28073509/harmful-effects-of-dinophysis-to-the-ciliate-mesodinium-rubrum-implications-for-prey-capture
#20
Luiz L Mafra, Satoshi Nagai, Hajime Uchida, Camila P S Tavares, Bruno P Escobar, Toshiyuki Suzuki
Toxigenic Dinophysis spp. are obligate mixotrophic dinoflagellates that require a constant supply of prey-Mesodinium rubrum-to achieve long-term growth by means of kleptoplasty. Mesodinium rubrum is, however, a fast moving, jumping ciliate exhibiting an effective escape response from suspensivorous predators. In the present study, a series of laboratory experiments evaluating the motility and survival of M. rubrum in the presence of Dinophysis cells and/or substances contained in their culture medium was designed, in order to assess the mechanisms involved in prey capture by Dinophysis spp...
November 2016: Harmful Algae
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