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docosahexaenoic acid

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https://www.readbyqxmd.com/read/29144430/a-correlation-study-of-dha-intake-estimated-by-a-ffq-and-concentrations-in-plasma-and-erythrocytes-in-mid-and-late-pregnancy
#1
Yu-Bo Zhou, Hong-Tian Li, Leonardo Trasande, Lin-Lin Wang, Ya-Li Zhang, Ke-Yi Si, Man-Xi Bai, Jian-Meng Liu
Adequate docosahexaenoic acid (DHA) is essential for the optimal growth and development of the fetus. Maternal DHA content fluctuates during pregnancy. The correlation of DHA content with dietary intake might be varied over the course of pregnancy. We aimed to compare the dietary DHA intake, estimated by a DHA-specific semiquantitative food frequency questionnaire (FFQ) against its blood content, among mid- and late-term pregnant women. A total of 804 Chinese pregnant women completed the tailored FFQ and provided fasting venous blood samples...
November 16, 2017: Nutrients
https://www.readbyqxmd.com/read/29142278/diet-selection-and-n-3-polyunsaturated-fatty-acid-deposition-in-lambs-as-affected-by-restricted-time-at-pasture
#2
X Q Zhang, Y M Jin, W B Badgery, Tana
This study investigates the effects of restricted grazing time on forage selectivity and meat fatty acid deposition of lambs compared to a traditional grazing system. Results showed that the animals preferred to graze pasture species that were more palatable and lower in fibre, while demonstrating a partial preference for species with high protein levels. Leymus chinensis was more preferentially selected by lambs grazing pasture for shorter periods than longer periods. Lambs that grazed for 4 h per day had a high LNA (α-linolenic acid) intake...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29142166/fish-oil-feeding-reverses-hepatomegaly-and-disrupted-hepatic-function-due-to-the-lack-of-fxr-signaling
#3
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/29142143/dha-supplementation-improves-cognitive-function-via-enhancing-a%C3%AE-mediated-autophagy-in-chinese-elderly-with-mild-cognitive-impairment-a-randomised-placebo-controlled-trial
#4
Yan-Ping Zhang, Yinyin Lou, Jing Hu, Rujuan Miao, Fei Ma
BACKGROUND: Higher docosahexaenoic acid (DHA) intake is inversely correlated with relative risk of Alzheimer's disease. The potential benefits of DHA supplementation in people with mild cognitive impairment (MCI) have not been fully examined. OBJECTIVE: Our study aimed to assess the effect of a 24-month DHA supplementation on cognitive function and amyloid beta (Aβ)-mediated autophagy in elderly subjects with MCI. METHODS: This was a randomised, double-blind, placebo-controlled trial in Tianjin, China...
November 15, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29141517/protective-effects-of-dietary-omega-3-fatty-acid-supplementation-on-organophosphate-poisoning
#5
Bahattin Avci, S Sirri Bilge, Gokhan Arslan, Omer Alici, Ozge Darakci, Turkhan Baratzada, Engin Ciftcioglu, Turker Yardan, Ayhan Bozkurt
In this study, we aimed to study the possible preventive effect of docosahexaenoic acid (DHA), a dietary omega-3 fatty acid, on toxicity caused by chlorpyrifos (CPF). Six groups of Sprague Dawley rats (200-250 g) consisting of equal numbers of males and females (n = 8) were assigned to study. The rats were orally given for 5 days. The control group was administered pure olive oil, which was the vehicle for CPF. The CPF challenge groups were administered oral physiological saline, pure olive oil, or DHA (50, 100 and 400 mg/kg dosages) for 5 days...
January 1, 2017: Toxicology and Industrial Health
https://www.readbyqxmd.com/read/29137840/resolvin-d1-attenuates-imiquimod-induced-mice-psoriasiform-dermatitis-through-mapks-and-nf-%C3%AE%C2%BAb-pathways
#6
Juntao Xu, Xiaoru Duan, Feng Hu, Devesh Poorun, Xinxin Liu, Xin Wang, Song Zhang, Lu Gan, Mengwen He, Ke Zhu, Zhangyin Ming, Hongxiang Chen
BACKGROUND: Resolvin D1 (RvD1), a pro-resolution lipid mediator derived from docosahexaenoic acid (DHA), has been described to promote several kinds of inflammatory resolution. However, the effects and anti-inflammatory mechanisms of RvD1 on psoriasis have not been previously reported. OBJECTIVE: The present study aimed to determine the protective effects and the underlying mechanisms of RvD1 on imiquimod (IMQ)-induced psoriasiform dermatitis. METHODS: Mice were topically treated with IMQ to develop psoriasiform dermatitis on their shaved back, pretreated intraperitoneally (i...
November 11, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29137149/physiological-and-biochemical-changes-reveal-differential-patterns-of-docosahexaenoic-acid-partitioning-in-two-marine-algal-strains-of-isochrysis
#7
Zheng Sun, Yong Chen, Xuemei Mao, Jin Liu
The marine microalgae Isochrysis are a good producer of natural docosahexaenoic acid (DHA). To better understand the patterns of DHA accumulation and distribution, two Isochrysis strains, CL153180 and CCMP462, were evaluated in this study. In a batch culture, CL153180 showed a decline in DHA content while CCMP462 exhibited a progressive increase during the late growth period when nitrogen was almost exhausted. In response to nitrogen deficiency (ND), both strains showed a considerable increase in neutral lipids (NL) at the expense of glycolipids (GL) but had little variation in phospholipids (PL)...
November 12, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29137111/effect-of-omega-3-fatty-acid-supplementation-on-plasma-fibroblast-growth-factor-23-levels-in-post-myocardial-infarction-patients-with-chronic-kidney-disease-the-alpha-omega-trial
#8
Martin H de Borst, Leandro C Baia, Ellen K Hoogeveen, Erik J Giltay, Gerjan Navis, Stephan J L Bakker, Johanna M Geleijnse, Daan Kromhout, Sabita S Soedamah-Muthu
Fibroblast growth factor 23 (FGF23) is an independent risk factor for cardiovascular mortality in chronic kidney disease. Omega-3 (n-3) fatty acid consumption has been inversely associated with FGF23 levels and with cardiovascular risk. We examined the effect of marine n-3 fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) and plant-derived alpha-linolenic acid (ALA) on plasma FGF23 levels in post-myocardial infarction patients with chronic kidney disease. In the randomized double-blind Alpha Omega Trial, 4837 patients with a history of myocardial infarction aged 60-80 years (81% men) were randomized to one of four trial margarines supplemented with a targeted additional intake of 400 mg/day EPA and DHA, 2 g/day ALA, EPA-DHA plus ALA, or placebo for 41 months...
November 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29134198/%C3%AF-3-polyunsaturated-fatty-acids-direct-differentiation-of-the-membrane-phenotype-in-mesenchymal-stem-cells-to-potentiate-osteogenesis
#9
Kandice R Levental, Michal A Surma, Allison D Skinkle, Joseph H Lorent, Yong Zhou, Christian Klose, Jeffrey T Chang, John F Hancock, Ilya Levental
Mammalian cells produce hundreds of dynamically regulated lipid species that are actively turned over and trafficked to produce functional membranes. These lipid repertoires are susceptible to perturbations from dietary sources, with potentially profound physiological consequences. However, neither the lipid repertoires of various cellular membranes, their modulation by dietary fats, nor their effects on cellular phenotypes have been widely explored. We report that differentiation of human mesenchymal stem cells (MSCs) into osteoblasts or adipocytes results in extensive remodeling of the plasma membrane (PM), producing cell-specific membrane compositions and biophysical properties...
November 2017: Science Advances
https://www.readbyqxmd.com/read/29133979/dietary-nutrients-associated-with-preservation-of-lung-function-in-hispanic-and-non-hispanic-white-smokers-from-new-mexico
#10
Shuguang Leng, Maria A Picchi, Yohannes Tesfaigzi, Guodong Wu, W James Gauderman, Fadi Xu, Frank D Gilliland, Steven A Belinsky
Background: COPD is the third leading cause of death in the United States. Cigarette smoking accelerates the age-related forced expiratory volume in 1 s (FEV1) decline, an important determinant for the genesis of COPD. Hispanic smokers have lower COPD prevalence and FEV1 decline than non-Hispanic whites (NHWs). Patients and methods: A nutritional epidemiological study was conducted in the Lovelace Smokers cohort (LSC; n=1,829) and the Veterans Smokers cohort (n=508) to identify dietary nutrients (n=139) associated with average FEV1 and its decline and to assess whether nutrient intakes could explain ethnic disparity in FEV1 decline between Hispanics and NHW smokers...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29129771/effects-of-antarctic-krill-docosahexaenoic-acid-on-mcf-7-cell-migration-and-invasion-induced-by-the-interaction-of-cd95-with-caveolin-1
#11
Weilong Zheng, Jingda Li, Xudong Wang, Yanping Yuan, Jianing Zhang, Zhilong Xiu
Tumor metastasis leads to a poor prognosis in breast cancer, yet the mechanisms remain unclear. Docosahexaenoic acid (DHA) extracted from Antarctic krill is an optical isomer of common DHA and has a much stronger anti-neoplastic effect. In this work, the migration and invasion abilities of MCF-7 cells treated with low concentrations of Antarctic krill DHA were evaluated. Low concentrations of Antarctic krill DHA significantly reduced the numbers of migrating and invasive MCF-7 cells, whereas the cell numbers decreased slowly in the CD95-silenced MCF-7 cells, which implies that CD95 might be involved in cell migration and invasion...
November 9, 2017: Life Sciences
https://www.readbyqxmd.com/read/29126932/docosahexaenoic-acid-dha-enhances-the-therapeutic-potential-of-neonatal-neural-stem-cell-transplantation-post-traumatic-brain-injury
#12
Hussein Ghazale, Naify Ramadan, Sara Mantash, Kazem Zibara, Sally El-Sitt, Hala Darwish, Farah Chamaa, Rose Mary Boustany, Stefania Mondello, Wassim Abou-Kheir, Jihane Soueid, Firas Kobeissy
Traumatic Brain Injury (TBI) is a major cause of death and disability worldwide with 1.5 million people inflicted yearly. Several neurotherapeutic interventions have been proposed including drug administration as well as cellular therapy involving neural stem cells (NSCs). Among the proposed drugs is docosahexaenoic acid (DHA), a polyunsaturated fatty acid, exhibiting neuroprotective properties. In this study, we utilized an innovative intervention of neonatal NSCs transplantation in combination with DHA injections in order to ameliorate brain damage and promote functional recovery in an experimental model of TBI...
November 7, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29126901/omega-3-polyunsaturated-fatty-acids-protect-human-hepatoma-cells-from-developing-steatosis-through-ffa4-gpr120
#13
Saeromi Kang, Jin Huang, Bo-Kyung Lee, Young-Suk Jung, Eunok Im, Jung-Min Koh, Dong-Soon Im
Protective effect of omega-3 polyunsaturated fatty acids (n-3 PUFA) on non-alcoholic fatty liver disease has been demonstrated. FFA4 (also known as GPR120; a G protein-coupled receptor) has been suggested to be a target of n-3 PUFA. FFA4 expression in hepatocytes has also been reported from liver biopsies in child fatty liver patients. In order to assess the functional role of FFA4 in hepatic steatosis, we used an in vitro model of liver X receptor (LXR)-mediated hepatocellular steatosis. FFA4 expression was confirmed in Hep3B and HepG2 human hepatoma cells...
November 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29126855/n-docosahexaenoylethanolamine-synaptamide-carbon-14-radiolabeling-and-metabolic-studies
#14
Shilpa Sonti, Richard I Duclos, Mansi Tolia, Samuel J Gatley
N-Docosahexaenoylethanolamine (synaptamide) is structurally similar to the endocannabinoid N-arachidonoylethanolamine (anandamide), but incorporates the omega-3 22:6 fatty acid docosahexaenoic acid (DHA) in place of the omega-6 20:4 fatty acid arachidonic acid (AA). Some brain membrane lipid effects may be mediated via synaptamide. In competition experiments with mouse brain homogenate in vitro, we found that synaptamide was an order-of-magnitude poorer inhibitor of radioactive anandamide hydrolysis than was anandamide itself...
November 7, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/29122003/docosahexaenoic-acid-mechanisms-of-action-on-the-bovine-oocyte-cumulus-complex
#15
Sebastien Elis, Mouhamad Oseikria, Anais Vitorino Carvalho, Priscila Silvana Bertevello, Emilie Corbin, Ana-Paula Teixeira-Gomes, Jérôme Lecardonnel, Catherine Archilla, Véronique Duranthon, Valérie Labas, Svetlana Uzbekova
BACKGROUND: Supplementation of bovine oocyte-cumulus complexes during in vitro maturation (IVM) with 1 μM of docosahexaenoic acid (DHA), C22:6 n-3 polyunsaturated fatty acid, was reported to improve in vitro embryo development. The objective of this paper was to decipher the mechanisms of DHA action. RESULTS: Transcriptomic analysis of 1 μM DHA-treated and control cumulus cells after 4 h IVM showed no significant difference in gene expression. MALDI-TOF mass spectrometry analysis of lipid profiles in DHA-treated and control oocytes and cumulus cells after IVM showed variations of only 3 out of 700 molecular species in oocytes and 7 out of 698 species in cumulus cells (p < 0...
November 9, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/29121093/fish-oil-omega-3-polyunsaturated-fatty-acids-attenuate-oxidative-stress-induced-dna-damage-in-vascular-endothelial-cells
#16
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/29120783/micro-emulsification-encapsulation-of-krill-oil-by-complex-coacervation-with-krill-protein-isolated-using-isoelectric-solubilization-precipitation
#17
Liu Shi, Sarah K Beamer, Hong Yang, Jacek Jaczynski
This study determined feasibility of krill protein isolated with isoelectric solubilization/precipitation (ISP) as wall material to microencapsulate krill oil by freeze-drying. Effects of krill oil/krill protein ratio on properties of microcapsules were investigated. With increased ratio, crude protein of microcapsules decreased, while total lipid increased. Although microcapsule oil loading capacity increased, loading and encapsulation efficiencies decreased. Thin layer chromatography (TLC) confirmed abundance of phospholipids, which are amphiphilic; and thus, resulted in stable emulsion (emulsion stability index)...
April 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29113747/differential-effects-of-epa-dpa-and-dha-on-cardio-metabolic-risk-factors-in-high-fat-diet-fed-mice
#18
Xiao-Fei Guo, Andrew J Sinclair, Gunveen Kaur, Duo Li
The aim of the present study was to assess and compare the effects of eicosapentaenoic acid (EPA), docosapentaenoic acid (DPA) and docosahexaenoic acid (DHA) supplementation on lipid metabolism in 4 month-old male C57BL/6J mice fed a high-fat diet. The high-fat fed mice showed evidence of fatty liver, obesity and insulin resistance after being on the high-fat diet for 6 weeks compared with the control low-fat diet fed mice. Supplementation of the high-fat diet with either EPA, DPA or DHA prevented the fatty liver, prevented high serum cholesterol and serum glucose and prevented high liver cholesterol levels...
September 22, 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/29113108/polymorphisms-in-ffar4-gpr120-gene-modulate-insulin-levels-and-sensitivity-after-fish-oil-supplementation
#19
Bastien Vallée Marcotte, Hubert Cormier, Iwona Rudkowska, Simone Lemieux, Patrick Couture, Marie-Claude Vohl
The objective was to test whether FFAR4 single nucleotide polymorphisms (SNPs) are associated with glycemic control-related traits in humans following fish oil supplementation. A total of 210 participants were given 3 g/day of omega-3 (n-3) fatty acids (FA) (1.9-2.2 g of eicosapentaenoic acid (EPA) and 1.1 g of docosahexaenoic acid (DHA)) during six weeks. Biochemical parameters were taken before and after the supplementation. Using the HapMap database and the tagger procedure in Haploview, 12 tagging SNPs in FFAR4 were selected and then genotyped using TaqMan technology...
November 6, 2017: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/29109264/epoxide-metabolites-of-arachidonate-and-docosahexaenoate-function-conversely-in-acute-kidney-injury-involved-in-gsk3%C3%AE-signaling
#20
Bing-Qing Deng, Ying Luo, Xin Kang, Chang-Bin Li, Christophe Morisseau, Jun Yang, Kin Sing Stephen Lee, Jian Huang, Da-Yong Hu, Ming-Yu Wu, Ai Peng, Bruce D Hammock, Jun-Yan Liu
Acute kidney injury (AKI) causes severe morbidity and mortality for which new therapeutic strategies are needed. Docosahexaenoic acid (DHA), arachidonic acid (ARA), and their metabolites have various effects in kidney injury, but their molecular mechanisms are largely unknown. Here, we report that 14 (15)-epoxyeicosatrienoic acid [14 (15)-EET] and 19 (20)-epoxydocosapentaenoic acid [19 (20)-EDP], the major epoxide metabolites of ARA and DHA, respectively, have contradictory effects on kidney injury in a murine model of ischemia/reperfusion (I/R)-caused AKI...
November 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
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