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https://www.readbyqxmd.com/read/29222893/postprandial-long-chain-n-3-polyunsaturated-fatty-acid-response-to-krill-oil-and-fish-oil-consumption-in-healthy-women-a-randomised-controlled-single-dose-crossover-study
#1
Hyunsin H Sung, Andrew J Sinclair, Paul A Lewandowski, Xiao Q Su
BACKGROUND AND OBJECTIVES: Krill oil (KO) and fish oil (FO) are good sources of health-benefiting long chain n- 3 polyunsaturated fatty acids (LC n-3 PUFA), EPA and DHA. There are conflicting outcomes on the bioavailability of LC n-3 PUFA from KO compared with FO. This study investigated the postprandial incorporation of LC n- 3 PUFA into plasma lipids following consumption of 5 capsules of KO or FO in comparison with olive oil (OO) control in healthy women. METHODS AND STUDY DESIGN: 10 women (aged 18-45 years) consumed a high-fat (15 g) breakfast, supplemented with 5 g of KO, FO, or OO in a random order with a minimum seven-day washout period between the supplementations...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29221817/polyunsaturated-fatty-acids-in-plasma-at-8%C3%A2-years-and-subsequent-allergic-disease
#2
Jessica Magnusson, Sandra Ekström, Inger Kull, Niclas Håkansson, Sara Nilsson, Magnus Wickman, Erik Melén, Ulf Risérus, Anna Bergström
BACKGROUND: Polyunsaturated fatty acids (PUFAs) are hypothesized to modulate the risk of allergic disease. However, evidence from previous studies is inconclusive, and limited longitudinal data exist using circulating biomarkers of PUFA intake and metabolism. OBJECTIVE: We aimed to investigate associations between n-3 and n-6 PUFAs at age 8 years and asthma, rhinitis, and aeroallergen sensitization at age 16 years. METHODS: Proportions of n-3 PUFAs (very long-chain n-3 [VLC n-3; sum of eicosapentaenoic acid, docosapentaenoic acid, and docosahexaenoic acid] and α-linolenic acid) and n-6 PUFAs (linoleic acid and arachidonic acid [AA]) in blood samples at age 8 years were measured for 940 children from the prospective Swedish birth cohort BAMSE (Children, Allergy, Milieu, Stockholm, Epidemiology)...
November 29, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29217656/anti-inflammatory-effects-of-omega-3-fatty-acids-in-the-brain-physiological-mechanisms-and-relevance-to-pharmacology
#3
REVIEW
Sophie Layé, Agnès Nadjar, Corinne Joffre, Richard P Bazinet
Classically, polyunsaturated fatty acids (PUFA) were largely thought to be relatively inert structural components of brain, largely important for the formation of cellular membranes. Over the past 10 years, a host of bioactive lipid mediators that are enzymatically derived from arachidonic acid, the main n-6 PUFA, and docosahexaenoic acid, the main n-3 PUFA in the brain, known to regulate peripheral immune function, have been detected in the brain and shown to regulate microglia activation. Recent advances have focused on how PUFA regulate the molecular signaling of microglia, especially in the context of neuroinflammation and behavior...
January 2018: Pharmacological Reviews
https://www.readbyqxmd.com/read/29215589/impact-of-omega-3-fatty-acids-on-the-gut-microbiota
#4
REVIEW
Lara Costantini, Romina Molinari, Barbara Farinon, Nicolò Merendino
Long-term dietary habits play a crucial role in creating a host-specific gut microbiota community in humans. Despite the many publications about the effects of carbohydrates (prebiotic fibers), the impact of dietary fats, such as omega-3 polyunsaturated fatty acids (PUFAs), on the gut microbiota is less well defined. The few studies completed in adults showed some common changes in the gut microbiota after omega-3 PUFA supplementation. In particular, a decrease in Faecalibacterium, often associated with an increase in the Bacteroidetes and butyrate-producing bacteria belonging to the Lachnospiraceae family, has been observed...
December 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29213183/screening-of-new-british-thraustochytrids-isolates-for-docosahexaenoic-acid-dha-production
#5
Loris Fossier Marchan, Kim J Lee Chang, Peter D Nichols, Jane L Polglase, Wilfrid J Mitchell, Tony Gutierrez
Thraustochytrids isolated from hot tropical and sub-tropical waters have been well studied for DHA and biodiesel production in the last decades. However, little research has been performed on the oils of cold water thraustochytrids, in particular from the North Sea region. In this study, thraustochytrid strains from British waters showed high relative levels of omega-3 long-chain (≥C20) polyunsaturated fatty acids (LC-PUFA), including docosahexaenoic acid (DHA, 22:6ω3). The relative levels of DHA (as % of total fatty acids, TFA) in the different British strains are hitherto amongst the highest recorded from any thraustochytrid screening study, with strain TL18 reaching up to 67% DHA in modified Glucose-Yeast Extract-Peptone (GYP) medium...
2017: Journal of Applied Phycology
https://www.readbyqxmd.com/read/29211883/carcass-characteristics-meat-quality-and-fatty-acid-composition-of-wild-living-mallards-anas-platyrhynchos-l
#6
P Janiszewski, D Murawska, V Hanzal, M Gesek, D Michalik, M Zawacka
The aim of this study was to determine the carcass characteristics, meat quality, and fatty acid composition of wild-living mallards. The experimental materials comprised 30 mallards (1:1 sex ratio) harvested during the hunting season in northeastern Poland. The carcasses were transported to the laboratory where they were weighed individually, plucked, dressed, and dissected. The proximate chemical composition and physicochemical properties of meat and the fatty acid profile of breast muscle lipids were determined, and a histological analysis was performed...
December 2, 2017: Poultry Science
https://www.readbyqxmd.com/read/29211867/effects-of-corn-dried-distillers-grains-with-solubles-on-performance-egg-quality-yolk-fatty-acid-composition-and-oxidative-status-in-laying-ducks
#7
D Ruan, A M Fouad, Q L Fan, W Chen, W G Xia, S Wang, Y Y Cui, Y Wang, L Yang, C T Zheng
The study investigated the effects of increasing content of corn distillers' dried grains with solubles (DDGS) in the diets of laying ducks on oxidative status, laying performance, egg quality, and egg yolk fatty acid composition. Longyan females (1080) with similar BW at 17 wk of age were randomly assigned to 6 treatment groups, each consisting of 6 replicates of 30 birds. The basal diet (I) was a typical corn-soybean ration while the experimental diets (II to VI) substituted corn DDGS for soybean meal and wheat bran and a small reduction of corn...
November 29, 2017: Poultry Science
https://www.readbyqxmd.com/read/29210633/recent-evidence-on-the-role-of-dietary-pufas-in-cancer-development-and-prevention
#8
Massimo D'Archivio, Beatrice Scazzocchio, Rosaria Vari, Carmela Santangelo, Claudio Giovannini, Roberta Masella
During the last decades a great bulk of scientific information has been accumulated about the metabolic effects of polyunsaturated fatty acids (PUFAs) that can impact human health. In particular, a growing body of evidence from in vitro, animal, and clinical studies supporting the use of n-3 PUFAs in cancer prevention has been collected. Furthermore, a considerable effort has recently been done to evaluate the hypothesis that n-3 PUFAs might improve the efficiency of currently used anticancer drugs. The role of n-6 PUFAs, in contrast, needs to be better assessed...
December 4, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29209497/long-chain-n-3-pufa-in-vegetarian-women-a-metabolic-perspective
#9
REVIEW
Graham C Burdge, Sze-Yen Tan, Christiani Jeyakumar Henry
Vegetarian diets have been associated with health benefits, but paradoxically are low in EPA and DHA which are important for development, particularly of the central nervous system, and for health. Humans have limited capacity for synthesis of EPA and DHA from α-linolenic acid, although this is greater in women than men. Oily fish and, to a lesser extent, dairy foods and meat are the primary sources of EPA and DHA in the diet. Exclusion of these foods from the diet by vegetarians is associated consistently with lower EPA and DHA status in vegetarian women compared with omnivores...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29208059/associations-of-the-serum-long-chain-n-3-pufa-and-hair-mercury-with-resting-heart-rate-peak-heart-rate-during-exercise-and-heart-rate-recovery-after-exercise-in-middle-aged-men
#10
Behnam Tajik, Sudhir Kurl, Tomi-Pekka Tuomainen, Kai Savonen, Jyrki K Virtanen
Long-chain n-3 PUFA from fish have been associated with lower risk of CVD. Fish may also contain methylmercury, which may attenuate the inverse associations of the long-chain n-3 PUFA. However, the mechanisms underlying these associations are not fully known. We evaluated the associations of the serum long-chain n-3 PUFA (EPA, DPA and DHA) and hair Hg with resting heart rate (HR), peak HR during cycle ergometer exercise and HR recovery after exercise. A total of 1008 men from the population-based Kuopio Ischaemic Heart Disease Risk Factor Study, aged 42-60 years and free of CVD, were studied...
December 6, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/29207677/dietary-n-3-polyunsaturated-fatty-acids-fish-consumption-and-endometrial-cancer-risk-a-meta-analysis-of-epidemiological-studies
#11
Rui Hou, Shen-Shen Yao, Jia Liu, Lian-Lian Wang, Lang Wu, Luo Jiang
The relationship between intake of fish and n-3 fatty acids and endometrial cancer risk has not been consistent across epidemiological studies. We quantitatively assessed the aforementioned association through a systematic review and meta-analysis. PubMed and Embase were searched through March 2017 for eligible epidemiological studies. Fixed or random-effects models were used to pool relative risks (RRs) and 95% confidence intervals (CIs). The dose-response relationship was also evaluated. Based on the literature search, five prospective studies and 11 case-control studies were identified...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29207548/the-role-of-omega-3-fatty-acids-in-developmental-psychopathology-a-systematic-review-on-early-psychosis-autism-and-adhd
#12
REVIEW
Carlo Agostoni, Maria Nobile, Valentina Ciappolino, Giuseppe Delvecchio, Alessandra Tesei, Stefano Turolo, Alessandro Crippa, Alessandra Mazzocchi, Carlo A Altamura, Paolo Brambilla
In this systematic review, we will consider and debate studies that have explored the effects of ω-3 polyunsaturated fatty acids (PUFAs) in three major, and somehow related, developmental psychiatric disorders: Autism, Attention Deficit and Hyperactivity disorder and Psychosis. The impact of ω-3 PUFAs on clinical symptoms and, if possible, brain trajectory in children and adolescents suffering from these illnesses will be reviewed and discussed, considering the biological plausibility of the effects of omega-3 fatty acids, together with their potential perspectives in the field...
December 4, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29206462/lipidomics-reveals-dramatic-physiological-kinetic-isotope-effects-during-the-enzymatic-oxygenation-of-polyunsaturated-fatty-acids-i-ex-vivo-i
#13
Aaron R Navratil, Mikhail S Shchepinov, Edward A Dennis
Arachidonic acid (AA, 20:4) is an omega-6 polyunsaturated fatty acid (PUFA) and the main precursor to the class of lipid mediators known as eicosanoids. The enzymes that catalyze the oxygenation of AA begin by abstracting hydrogen from one of three bis-allylic carbons within 1,4- cis,cis-diene units. Substitution of deuterium for hydrogen has been shown to lead to massive kinetic isotope effects (KIE) for soybean lipoxygenase (sLOX) oxygenation of linoleic acid (LA, 18:2). Yet, experimental determination of the KIE during oxygenation of AA and LA by mammalian enzymes including cyclooxygenase (COX) and lipoxygenase (LOX) has revealed far lower values...
December 5, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29206211/the-imbalance-between-n-6-n-3-polyunsaturated-fatty-acids-and-inflammatory-bowel-disease-a-comprehensive-review-and-future-therapeutic-perspectives
#14
REVIEW
Eleonora Scaioli, Elisa Liverani, Andrea Belluzzi
Eating habits have changed dramatically over the years, leading to an imbalance in the ratio of n-6/n-3 polyunsaturated fatty acids (PUFAs) in favour of n-6 PUFAs, particularly in the Western diet. Meanwhile, the incidence of inflammatory bowel disease (IBD) is increasing worldwide. Recent epidemiological data indicate the potential beneficial effect of n-3 PUFAs in ulcerative colitis (UC) prevention, whereas consumption of a higher ratio of n-6 PUFAs versus n-3 PUFAs has been associated with an increased UC incidence...
December 5, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29203442/n-3-pufa-diet-enrichment-prevents-amyloid-beta-induced-depressive-like-phenotype
#15
M G Morgese, S Schiavone, E Mhillaj, M Bove, P Tucci, L Trabace
Among neuropsychiatric diseases, depression is one of the most prevalent. Many pathologies have been indicated as comorbid with depression and in particular, neurodegenerative disorders such as Alzheimer's diseases (AD). In this regard, several evidences endorse a strong relationship between depression and AD, so much that this mental illness has been proposed either as a risk factor for AD or as a prodromic AD phase. Furthermore, amyloid beta (Aβ) peptide, the main constituent of amyloid plaques commonly considered the principal hallmark of AD brains, has been shown to be increased, in its soluble form, in depressed patients...
December 1, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29198243/maternal-grazing-on-stubble-and-mediterranean-shrubland-improves-meat-lipid-profile-in-light-lambs-fed-on-concentrates
#16
L Mateo, P Delgado, J Ortuño, S Bañón
Concentrates-fed lamb meat is often associated with an unfavourable lipid profile (high levels of saturated and/or n-6 polyunsaturated fatty acids; SFA and PUFA). For this reason, Spanish sheep producers from Mediterranean areas are turning to traditional grazing by ewes to obtain healthier lamb meat. The objective of this research was to determine the effects of maternal grazing on the fatty acid (FA) composition of weaned lamb meat. The ewes (Segureña breed) were allocated to two different rearing systems during pregnancy (5 months) and lactation (45 days): (i) feeding indoors on barley grain and lucerne pellets; (ii) grazing on cereal stubble, fallow land and seasonal pastures consisting of Mediterranean shrubs, herbs and trees...
December 4, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29196667/a-multidisciplinary-approach-to-study-the-reproductive-biology-of-wild-prawns
#17
L Bolognini, F Donato, A Lucchetti, I Olivotto, C Truzzi, B Randazzo, M Antonucci, S Illuminati, F Grati
This work aims to provide deeper knowledge on reproductive biology of P. kerathurus in a multidisciplinary way. Upon 789 examined females, 285 were found inseminated. The logistic equation enabled to estimate the size at first maturity at 30.7 mm CL for female. The Gono-Somatic Index (GSI) showed a pronounced seasonality, ranged from 0.80 ± 0.34 to 11.24 ± 5.72. Histological analysis highlighted five stages of ovarian development. Gonadal fatty acids analysis performed with gas chromatograph evidenced a pronounced seasonal variation; total lipids varied from 1...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29195133/effects-of-fish-oils-on-ex-vivo-b-cell-responses-of-obese-subjects-upon-bcr-tlr-stimulation-a-pilot-study
#18
William Guesdon, Rasagna Kosaraju, Patricia Brophy, Angela Clark, Steve Dillingham, Shahnaz Aziz, Fiona Moyer, Kate Willson, James R Dick, Shivajirao Prakash Patil, Nicholas Balestrieri, Michael Armstrong, Nichole Reisdroph, Saame Raza Shaikh
The long-chain n-3 polyunsaturated fatty acids (LC-PUFAs) eicosapentaenoic (EPA) and docosahexaenoic acid (DHA) in fish oil have immunomodulatory properties. B cells are a poorly studied target of EPA/DHA in humans. Therefore, in this pilot study, we tested how n-3 LC-PUFAs influence B-cell responses of obese humans. Obese men and women were assigned to consume four 1-g capsules per day of olive oil (OO, n=12), fish oil (FO, n=12) concentrate or high-DHA-FO concentrate (n=10) for 12 weeks in a parallel design...
November 2, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29194350/the-marine-fungi-rhodotorula-sp-strain-cnyc4007-as-a-potential-feed-source-for-fish-larvae-nutrition
#19
M Barra, A Llanos-Rivera, F Cruzat, N Pino-Maureira, R R González-Saldía
Fish oil is used in the production of feed for cultured fish owing to its high polyunsaturated fatty acid content (PUFA). The over-exploitation of fisheries and events like "El Niño" are reducing the fish oil supply. Some marine microorganisms are considered potentially as alternative fatty acid sources. This study assesses a strain of Rhodotorula sp. (strain CNYC4007; 27% docosahexaenoic acid (DHA) of total fatty acids), as feed for fish larvae. The total length and ribonucleic acid (RNA)/deoxyribonucleic acid (DNA) ratio of Danio rerio larvae was determined at first feeding at six and 12 days old (post-yolk absorption larvae)...
December 1, 2017: Marine Drugs
https://www.readbyqxmd.com/read/29192407/de-novo-lipogenesis-and-desaturation-of-fatty-acids-during-adipogenesis-in-bovine-adipose-derived-mesenchymal-stem-cells
#20
Yongli Yue, Lichun Zhang, Xiang Zhang, Xueling Li, Haiquan Yu
Adipose-derived mesenchymal stem cells (ADSCs) are useful cell model to study adipogenesis and energy metabolism. However, the biological characteristics of bovine ADSCs (bADSCs) remain unclear. This study aimed to isolate and identify bADSCs and further investigate fatty acid (FA)-related gene expression and composition of FAs during adipogenesis. The growth curve showed the bADSCs of P5 cells had rapid proliferation superior to P10-P50. The colony formation assay showed colony number of P5 cells was higher than that of P50 cells (51...
November 30, 2017: In Vitro Cellular & Developmental Biology. Animal
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