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https://www.readbyqxmd.com/read/29351444/activated-human-t-lymphocytes-inhibit-tgf%C3%AE-induced-fibroblast-to-myofibroblast-differentiation-via-prostaglandins-d2-and-e2
#1
Shannon H Lacy, Amali P Epa, Stephen J Pollock, Collynn F Woeller, Thomas H Thatcher, Richard P Phipps, Patricia J Sime
In pulmonary fibrosis (PF), fibroblasts and myofibroblasts proliferate and deposit excessive extracellular matrix in the interstitium, impairing normal lung function. As most forms of PF have a poor prognosis and limited treatment options, PF represents an urgent unmet need for novel, effective therapeutics. While the role of immune cells in lung fibrosis is unclear, recent studies suggest that T lymphocyte (T cell) activation may be impaired in PF patients. Further, we have previously shown that activated T cells can produce prostaglandins with anti-scarring potential...
December 20, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29350562/enzymes-in-lipid-modification
#2
Uwe T Bornscheuer
This article reviews the application of enzymes in lipid modification. Lipases are the most established biocatalysts used for the synthesis of structured triacylglycerols, fats, and margarine for the release of flavoring fatty acids for food applications. In addition, the various enzymes, such as P450 monooxygenases, hydratases, lipoxygenases, and certain lyases, used for oxyfunctionalization and the phospholipases used for degumming are covered. Basic aspects of enzyme catalysis and the modern tools used for their discovery and improvement by protein engineering provide insight into how suitable biocatalysts can be identified and optimized for an application...
January 18, 2018: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/29350557/omega-3-polyunsaturated-fatty-acids-and-their-health-benefits
#3
Fereidoon Shahidi, Priyatharini Ambigaipalan
Omega-3 polyunsaturated fatty acids (PUFAs) include α-linolenic acid (ALA; 18:3 ω-3), stearidonic acid (SDA; 18:4 ω-3), eicosapentaenoic acid (EPA; 20:5 ω-3), docosapentaenoic acid (DPA; 22:5 ω-3), and docosahexaenoic acid (DHA; 22:6 ω-3). In the past few decades, many epidemiological studies have been conducted on the myriad health benefits of omega-3 PUFAs. In this review, we summarized the structural features, properties, dietary sources, metabolism, and bioavailability of omega-3 PUFAs and their effects on cardiovascular disease, diabetes, cancer, Alzheimer's disease, dementia, depression, visual, and neurological development, as well as maternal and child health...
January 18, 2018: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/29350428/meta-analysis-of-fish-early-life-stage-tests-association-of-toxic-ratios-and-acute-to-chronic-ratios-with-modes-of-action
#4
REVIEW
Stefan Scholz, Rene Schreiber, James Armitage, Philipp Mayer, Beate I Escher, Annegret Lidzba, Marc Léonard, Rolf Altenburger
Fish early life stage (FELS) tests (OECD test guideline 210) are widely conducted to estimate chronic fish toxicity. In these tests, fish are exposed from the embryonic to the juvenile life stage. In order to analyse whether certain modes of action are related to high toxic ratios (TR, i.e., ratios between experimental effect and baseline toxicity) and/or acute-to-chronic ratios (ACR) in the FELS test effect concentrations for 183 compounds were extracted from the US EPA ecotoxicity database. Analysis of effect concentration of narcotic compounds indicated that baseline toxicity could be observed in the FELS test at similar concentrations as in acute fish toxicity test...
January 19, 2018: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/29348518/serum-%C3%AF-3-polyunsaturated-fatty-acids-and-potential-influence-factors-in-elderly-patients-with-multiple-cardiovascular-risk-factors
#5
Wenwen Liu, Xiaochuan Xie, Meilin Liu, Jingwei Zhang, Wenyi Liang, Xiahuan Chen
Recent clinical trials failed to demonstrate that ω-3 polyunsaturated fatty acid (PUFA) supplement reduced cardiovascular events, which contradicted previous evidence. However, serum ω-3 PUFA concentrations of participants remained unclear in those studies. We aimed to investigate the definite relationship between serum concentrations of ω-3 PUFAs and coronary artery disease (CAD), and to explore the potential influence factors of ω-3 PUFAs. We selected Chinese in-patients (n = 460) with multiple cardiovascular risk factors or an established diagnosis of CAD...
January 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29348061/effects-of-wavelength-mixing-ratio-and-photoperiod-on-microalgal-biomass-and-lipid-production-in-a-two-phase-culture-system-using-led-illumination
#6
Phunlap Sirisuk, Chae-Hun Ra, Gwi-Taek Jeong, Sung-Koo Kim
Blue and red light-emitting diodes (LEDs) were used to study the effects of wavelength mixing ratios, photoperiod regimes, and green wavelength stress on Nannochloropsis salina, Isochrysis galbana, and Phaeodactylum tricornutum cell biomass and lipid production. The maximum specific growth rates of I. galbana and P. tricornutum were obtained under a 50:50 mixing ratio of blue and red wavelength LEDs; that of N. salina was obtained under red LED. Maximum cell biomass for N. salina and P. tricornutum was 0.75 and 1...
January 4, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29346149/testing-elevated-protease-activity-prospective-analysis-of-160-wounds
#7
Anike Lockmann, Tillmann Schill, Franziska Hartmann, Lisa-Lena Grönemeyer, Ricarda Holzkamp, Michael P Schön, Kai-Martin Thoms
OBJECTIVE: Given that local elevated protease activity (EPA) has been implicated in impaired wound healing, a prospective single-center study was conducted to assess protease activity in various wound types. METHODS: Protease activity was determined using an easy-to-use test system (Woundchek Protease Status Test Kit; Systagenix, Gatwick, United Kingdom) in 160 wounds in 143 patients. The assay detects the combined activity of inflammatory proteases, mainly matrix metalloproteinases 8 and 9 and human neutrophil elastase...
February 2018: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29345914/comparative-analysis-of-epa-dha-pl-forage-and-liposomes-in-orotic-acid-induced-non-alcoholic-fatty-liver-rats-and-their-related-mechanisms
#8
Mengru Chang, Tiantian Zhang, Xiuqing Han, Qingjuan Tang, Teruyoshi Yanagita, Jie Xu, Changhu Xue, YuMing Wang
Non-alcoholic fatty liver disease (NAFLD) has become one predictive factor of death from various illnesses. The present study was to comparatively investigate the effects of eicosapentaenoic acid-enriched and docosahexaenoic acid-enriched phospholipids forage (EPA-PL and DHA-PL) and liposomes (lipo-EPA and lipo-DHA) on NAFLD and demonstrate possible protective mechanisms involved. The additive doses of EPA-PL and DHA-PL in all treatment groups were 1 % of total diets, respectively. Results showed that Lipo-EPA could significantly improve hepatic function by down-regulating orotic acid-induced serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels by 55...
January 18, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29345217/statistical-analysis-of-human-microarray-data-shows-that-dietary-intervention-with-n-3-fatty-acids-flavonoids-and-resveratrol-enriches-for-immune-response-and-disease-pathways
#9
Alix Warburton, Olga Vasieva, Peter Quinn, James P Stewart, John P Quinn
n-3 Fatty acids, flavonoids and resveratrol are well publicised for their beneficial effects on human health and wellbeing. Identifying common, underlying biological mechanisms targeted by these functional foods would therefore be informative for the public health sector for advising on nutritional health and disease, food and drug product development and consumer interest. The aim of this study was to explore the potential effects of gene expression changes associated with n-3 fatty acids EPA and DHA, flavonoids and resveratrol on modifying biological systems and disease pathways...
January 18, 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29344023/eicosapentaenoic-acid-as-a-potential-therapeutic-approach-to-reduce-cardiovascular-risk-in-patients-with-end-stage-renal-disease-on-hemodialysis-a-review
#10
REVIEW
Kenneth M Borow, R Preston Mason, Krishnaswami Vijayaraghavan
Background: Patients with end-stage renal disease on hemodialysis have excess cardiovascular disease (CVD) burden with substantially increased CV event rates compared with the general population. Summary: Traditional interventions that, according to standard clinical guidelines, reduce CV risk such as antihypertensive therapy, diet, exercise, and statins are not similarly effective in the hemodialysis population. This raises the question of whether additional risk factors, such as enhanced inflammation and oxidative stress, may drive the increased CVD burden in hemodialysis patients...
December 2017: Cardiorenal Medicine
https://www.readbyqxmd.com/read/29343469/entrustable-professional-activities-a-useful-concept-for-neurology-education
#11
Holli Horak, Robert Englander, Diana Barratt, Jeff Kraakevik, Madhu Soni, Ezgi Tiryaki
Medical education is currently undergoing a paradigm shift from process-based to competency-based education, focused on measuring the desired competence of a physician. In an attempt to improve the assessment framework used for medical education, the concept of entrustable professional activities (EPAs) has gained traction. EPAs are defined as professional activities that can be entrusted to an individual in a clinical context. The Association of American Medical Colleges (AAMC) defined a set of 13 such EPAs to define the core of what all students should be able to do on day 1 of residency, regardless of specialty choice...
January 17, 2018: Neurology
https://www.readbyqxmd.com/read/29342901/omega-3-polyunsaturated-fatty-acids-time-dependently-reduce-cell-viability-and-oncogenic-microrna-21-expression-in-estrogen-receptor-positive-breast-cancer-cells-mcf-7
#12
Lauren LeMay-Nedjelski, Julie K Mason-Ennis, Amel Taibi, Elena M Comelli, Lilian U Thompson
The omega-3 polyunsaturated fatty acid (n-3 PUFA), α-linolenic acid (ALA), and its metabolites, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), independently reduce the growth of breast cancer cells in vitro, but the mechanisms, which may involve microRNA (miRNA), are still unclear. The expression of the oncomiR, miR-21, is reduced by DHA treatment, but the effects of ALA on miR-21, alone or combined with EPA and DHA under physiologically relevant concentrations, have not been investigated. The effects of ALA alone and +/-EPA and DHA at the blood molar ratios seen in either humans (1...
January 14, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29339986/seeking-optimal-nutrition-for-healthy-body-mass-reduction-among-former-athletes
#13
Dominika Maciejewska, Małgorzata Michalczyk, Maja Czerwińska-Rogowska, Marcin Banaszczak, Karina Ryterska, Karolina Jakubczyk, Jakub Piotrwski, Joanna Hołowko, Arleta Drozd, Paweł Wysokińki, Krzysztof Ficek, Krzysztof Wilk, Anna Lubkowska, Paweł Cięszczyk, Jerzy Bertrand, Ewa Stachowska
The aim of the study was to investigate the efficacy of 6 week Mediterranean diet or 30% calorie restriction on the fatty acid profile and eicosanoids (hydroxyoctadecadienoi acids and hydroxyeicosatetraenoic acids) concentration. Furthermore, basic biochemical variables such as insulin, glucose, HOMA-IR, and a lipid profile were estimated. The study enrolled 94 Caucasian former athletes aged 20-42, with body height of 179 ± 16.00 cm and body mass of 89.26 ± 13.25 kg who had not been active for at least 5 years...
December 2017: Journal of Human Kinetics
https://www.readbyqxmd.com/read/29336895/alterations-in-peripheral-fatty-acid-composition-in-bipolar-and-unipolar-depression
#14
Gustavo Scola, Amelia Versace, Adam H Metherel, Luz A Monsalve-Castro, Mary L Phillips, Richard P Bazinet, Ana C Andreazza
BACKGROUND: Lipid metabolism has been shown to play an important role in unipolar and bipolar depression. In this study, we aimed to evaluate levels of fatty acids in patients with unipolar (MDD) and bipolar depression (BDD) in comparison to patients with bipolar disorder in euthymia (BDE) and non-psychiatric controls. METHODS: Levels of saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs) and polyunsaturated fatty acids (PUFAs) were assessed in serum of (87) patients with BD (31 euthymic, 22 depressive) or MDD (34) and (31) non-psychiatric controls through GC-FID...
January 6, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29332834/direct-inlet-probe-ion-mobility-spectrometry
#15
Andriy Kuklya, Lokman Coban, Florian Uteschil, Klaus Kerpen, Ursula Telgheder
Direct inlet probe (DIP) was used as an introduction and a pre-separation step for atmospheric pressure photoionization time-of-flight ion mobility spectrometry (APPI-TOF-IMS) for the first time. IMS is an analytical technique used to separate and identify ionized molecules in the gas phase and under atmospheric pressure based on their mobility. The utilization of DIP prior to IMS gives the possibility to introduce the analytes into the gas phase and provides an additional separation based on their vapor pressure...
April 1, 2018: Talanta
https://www.readbyqxmd.com/read/29331711/omega-3-supplements-reduce-self-reported-physical-aggression-in-healthy-adults
#16
Laurent Bègue, Ap Zaalberg, Rébecca Shankland, Aaron Duke, Julie Jacquet, Perla Kaliman, Lucie Pennel, Marc Chanove, Philippe Arvers, Brad J Bushman
There is emerging evidence that Omega-3 polyunsaturated fatty acids (PUFA) supplements can decrease aggression. However, experimental studies with adults from non-specific populations are scarce. We hypothesized that Omega-3 supplements would decrease self-reported aggression among non-clinical participants. In a double-blind randomized trial, two groups of participants (N = 194) aged 18-45 from the general population followed a 6-weeks treatment with 638mg docosahexaenoic acid (DHA) and 772mg eicosapentaenoic acid (EPA) per day or the equivalent quantity of copra oil (placebo)...
December 15, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29331380/eicosapentaenoic-acid-inhibits-oxidation-of-high-density-lipoprotein-particles-in-a-manner-distinct-from-docosahexaenoic-acid
#17
Samuel C R Sherratt, R Preston Mason
The omega-3 fatty acid eicosapentaenoic acid (EPA) reduces oxidation of ApoB-containing particles in vitro and in patients with hypertriglyceridemia. EPA may produce these effects through a potent antioxidant mechanism, which may facilitate LDL clearance and slow plaque progression. We hypothesize that EPA antioxidant effects may extend to ApoA-containing particles like HDL, potentially preserving certain atheroprotective functions. HDL was isolated from human plasma and incubated at 37 °C in the absence (vehicle) or presence of EPA and/or DHA; 5...
January 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29331219/polycyclic-aromatic-hydrocarbons-in-soils-and-lichen-from-the-western-tibetan-plateau-concentration-profiles-distribution-and-its-influencing-factors
#18
Ruichen Zhou, Ruiqiang Yang, Chuanyong Jing
The Tibetan Plateau (TP) is a huge area and rarely affected by human activity, and is regarded as one of the most remote regions on the earth. Many studies about the long-range atmospheric transport (LRAT) of semi-volatile organic compounds (SVOCs) were conducted in southern and central TP. However, there are very limited studies focused on PAHs in the western TP and the concentrations profiles, distribution and its controlling factors in this area remains unclear. Thus, to explore this knowledge gap, 37 surface soil samples and 23 lichen samples were collected and analyzed for PAHs...
January 10, 2018: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/29331150/production-of-eicosapentaenoic-acid-by-application-of-a-delta-6-desaturase-with-the-highest-ala-catalytic-activity-in-algae
#19
Haisu Shi, Xue Luo, Rina Wu, Xiqing Yue
Dunaliella salina is a unicellular green alga with a high α-linolenic acid (ALA) level, but a low eicosapentaenoic acid (EPA) level. In a previous analysis of the catalytic activity of delta 6 fatty acid desaturase (FADS6) from various species, FADS6 from Thalassiosira pseudonana (TpFADS6), a marine diatom, showed the highest catalytic activity for ALA. In this study, to enhance EPA production in D. salina, FADS6 from D. salina (DsFADS6) was identified, and substrate specificities for DsFADS6 and TpFADS6 were characterized...
January 13, 2018: Microbial Cell Factories
https://www.readbyqxmd.com/read/29329100/a-web-based-system-for-bayesian-benchmark-dose-estimation
#20
Kan Shao, Andrew J Shapiro
BACKGROUND: Benchmark dose (BMD) modeling is an important step in human health risk assessment and is used as the default approach to identify the point of departure for risk assessment. A probabilistic framework for dose-response assessment has been proposed and advocated by various institutions and organizations; therefore, a reliable tool is needed to provide distributional estimates for BMD and other important quantities in dose-response assessment. OBJECTIVES: We developed an online system for Bayesian BMD (BBMD) estimation and compared results from this software with U...
January 11, 2018: Environmental Health Perspectives
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