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FAS 酒精 神经

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https://www.readbyqxmd.com/read/27920274/adipose-fatty-acid-binding-protein-promotes-saturated-fatty-acid-induced-macrophage-cell-death-through-enhancing-ceramide-production
#1
Yuwen Zhang, Enyu Rao, Jun Zeng, Jiaqing Hao, Yanwen Sun, Shujun Liu, Edward R Sauter, David A Bernlohr, Margot P Cleary, Jill Suttles, Bing Li
Macrophages play a critical role in obesity-associated chronic inflammation and disorders. However, the molecular mechanisms underlying the response of macrophages to elevated fatty acids (FAs) and their contribution to metabolic inflammation in obesity remain to be fully elucidated. In this article, we report a new mechanism by which dietary FAs, in particular, saturated FAs (sFAs), are able to directly trigger macrophage cell death. We demonstrated that excess sFAs, but not unsaturated FAs, induced the production of cytotoxic ceramides (Cers) in macrophage cell lines...
December 5, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27919962/ascorbyl-stearate-promotes-apoptosis-through-intrinsic-mitochondrial-pathway-in-hela-cancer-cells
#2
Shirish D Mane, Maikho Thoh, Deepak Sharma, Santosh K Sandur, K Akhilender Naidu
BACKGROUND: Ascorbic acid is proposed to have antitumor potential against certain cancer types but has the limitation of requiring high doses for treating cancer. Ascorbyl stearate (ASC-S) is a fatty acid ester derivative of ascorbic acid with comparable potent apoptotic activity. The present study was aimed at understanding the pathway involved in apoptotic activity of ASC-S in cervical cancer cells. MATERIALS AND METHODS: The effect of ASC-S on reactive oxygen species (ROS), and mitochondrial membrane potential (MMP) was studied in HeLa cells...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919821/specific-micrornas-comparisons-in-hypoxia-and-morphine-preconditioning-against-hypoxia-reoxgenation-injury-with-and-without-heart-failure
#3
Hai-Juan Zhu, Zheng-Yi Han, Shu-Fang He, Shi-Yun Jin, Shi-Jin Xu, Xiang-Dong Fang, Ye Zhang
AIMS: Ischemia reperfusion (I/R) injury is an inevitable event arising during the cardiovascular diseases development and the process of potent surgical treatments. microRNAs (miRNAs) are critical regulators of multiple cell processes including I/R injury. The present study aims to quantify miRNA alterations and regulated genes upon hypoxia-reoxygenation (H/R) injury in a rat heart failure model comparing with normal cardiomyocytes. MAIN METHODS: Chronic heart failure was established by injecting doxorubicin (2mg/kg/week) for 6weeks, then H/R was performed on primary cultured cardiomyocytes isolated from normal and failed heart...
December 2, 2016: Life Sciences
https://www.readbyqxmd.com/read/27917529/accuracy-precision-and-reproducibility-of-myocardial-t1-mapping-a-comparison-of-four-t1-estimation-algorithms-for-modified-look-locker-inversion-recovery-molli
#4
Jiaxin Shao, Dapeng Liu, Kyunghyun Sung, Kim-Lien Nguyen, Peng Hu
PURPOSE: To compare the accuracy and precision of four different T1 estimation algorithms for modified Look-Locker inversion recovery (MOLLI). METHODS: Four T1 estimation algorithms, including the original fit, inversion group (IG) fit, instantaneous signal loss simulation (InSiL), and Bloch equation simulation with slice profile correction (BLESSPC) were studied. T1 estimation accuracy, precision, reproducibility, and sensitivity to heart rate (HR), flip angle (FA), and acquisition scheme (AcS) variations were compared in simulation, phantom, and volunteer studies...
December 4, 2016: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/27916091/-tryptase-inhibits-cell-apoptosis-through-upregulating-par-2-and-rho-kinase-in-rheumatoid-arthritis-synovial-fibroblasts
#5
Qianqian Zheng, Shigang Li, Yunli Jia, Wei Liu, Lingling Yu, Xianyong Chen, Jinling Wang
Objective To investigate the regulatory effects of tryptase on protease-activated receptors 2 (PAR-2), Rho signal pathway and apoptosis of MH7A rheumatoid arthritis synovial fibroblasts. Methods In MH7A cells, the expression of PAR-2 was measured by flow cytometry; cell apoptosis was examined by annexin V- FITC/PI staining combined with flow cytometry; the expression of Rho kinase was detected by Pull-down assay and Western botting. Results Tryptase upregulated the expression of PAR-2 in MH7A cells, and suppressed Fas-mediated apoptosis of MH7A cells in a dose-dependent manner...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27915365/now-you-make-false-memories-now-you-do-not-the-order-of-presentation-of-words-in-drm-lists-influences-the-production-of-the-critical-lure-in-alzheimer-s-disease
#6
Christelle Evrard, Anne-Laure Gilet, Fabienne Colombel, Elodie Dufermont, Yves Corson
Why do some Alzheimer's patients produce fewer false memories than healthy older participants in the Deese-Roediger-McDermott paradigm, which was especially designed for the study of false memories in a laboratory setting? Using a very simple methodology, this study examines a new explanatory factor inherent in the paradigm itself: the order of presentation of the words in the lists. A sample comprising 149 participants (36 younger, 40 middle-aged, 37 healthy older adults, and 36 Alzheimer's patients) performed a DRM task with either a classic descending forward associative strength (FAS) presentation order of the words or an ascending FAS presentation order...
December 3, 2016: Psychological Research
https://www.readbyqxmd.com/read/27914293/diethylcarbamazine-attenuates-lps-induced-acute-lung-injury-in-mice-by-apoptosis-of-inflammatory-cells
#7
Ingrid Tavares Fragoso, Edlene Lima Ribeiro, Fabiana Oliveira Dos Santos Gomes, Mariana Aragão Matos Donato, Amanda Karolina Soares Silva, Amanda Costa O de Oliveira, Shyrlene Meiry da Rocha Araújo, Karla Patrícia Sousa Barbosa, Laise Aline Martins Santos, Christina Alves Peixoto
BACKGROUND: Acute lung injury (ALI) is characterized by extensive neutrophil infiltration, and apoptosis delay considered part of the pathogenesis of the condition. Despite great advances in treatment strategies, few effective therapies are known for ALI. Diethylcarbamazine (DEC) is used against lymphatic filariasis, a number of studies have described its anti-inflammatory activities and pro-apoptotic effect. These properties have been associated with nuclear factor kappa-B inactivation...
September 24, 2016: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/27913584/nitro-fatty-acid-pharmacokinetics-in-the-adipose-tissue-compartment
#8
Marco Fazzari, Nicholas K H Khoo, Steven R Woodcock, Diane K Jorkasky, Lihua Li, Francisco J Schopfer, Bruce A Freeman
Electrophilic nitro-fatty acids (NO2-FAs) promote adaptive and anti-inflammatory cell signaling responses as a result of an electrophilic character that supports post-translational protein modifications. A unique pharmacokinetic profile is expected for NO2-FAs because of an ability to undergo reversible reactions including Michael additions with biological cysteine-containing proteins and esterification into complex lipids. Herein we report via quantitative whole-body autoradiography analysis of rats gavaged with radiolabeled 10-nitro-[14C]oleic acid, preferential accumulation in adipose tissue over two weeks...
December 2, 2016: Journal of Lipid Research
https://www.readbyqxmd.com/read/27911915/marathon-race-affects-neutrophil-surface-molecules-role-of-inflammatory-mediators
#9
Vinicius Coneglian Santos, Ana Paula Renno Sierra, Rodrigo Oliveira, Kim Guimarães Caçula, César Miguel Momesso, Fabio Takeo Sato, Maysa Braga Barros Silva, Heloisa Helena Oliveira, Maria Elizabeth Pereira Passos, Diego Ribeiro de Souza, Olivia Santos Gondim, Marino Benetti, Adriana Cristina Levada-Pires, Nabil Ghorayeb, Maria Augusta Peduti Dal Molin Kiss, Renata Gorjão, Tânia Cristina Pithon-Curi, Maria Fernanda Cury-Boaventura
The fatigue induced by marathon races was observed in terms of inflammatory and immunological outcomes. Neutrophil survival and activation are essential for inflammation resolution and contributes directly to the pathogenesis of many infectious and inflammatory conditions. The aim of this study was to investigate the effect of marathon races on surface molecules related to neutrophil adhesion and extrinsic apoptosis pathway and its association with inflammatory markers. We evaluated 23 trained male runners at the São Paulo International Marathon 2013...
2016: PloS One
https://www.readbyqxmd.com/read/27910756/fatty-acid-composition-of-different-collections-of-coprinoid-mushrooms-agaricomycetes-and-their-nutritional-and-medicinal-values
#10
Susanna M Badalyan
Qualitative and quantitative analyses of the free fatty acid (FA) composition of ethanol extracts obtained from mycelia of 30 genetically identified strains of 18 species of coprinoid mushrooms (CMs) or coprini belonging to clades Coprinellus (C. bisporus, C. curtus, C. disseminatus, C. domesticus, C. ellisii, C.flocculosus, C. micaceus, C. aff radians I, C. aff radians II, C. aff radians III, C. xanthothrix, Coprinellus sp. 4), Coprinopsis (C. cinerea, C. cothurnata, C. gonophylla, C. lagopides, C. maysoidispora, C...
2016: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/27909561/korean-solar-salts-reduce-obesity-and-alter-its-related-markers-in-diet-induced-obese-mice
#11
Jaehyun Ju, Jia-Le Song, Eui-Seong Park, Myoung-Sool Do, Kun-Young Park
BACKGROUND/OBJECTIVES: The aim of this experiments was to show anti-obesity effects of Korean solar salt from different salt fields in diet-induced obese mice. SUBJECTS/METHODS: Diet-induced obesity (DIO) was induced by a high-fat diet (HFD; 45% cal from fat) in C57BL/6J mice for eight weeks. The mice were fed with the designated diets (chow diet for Normal, HFD for Control, 0.47%-salt-mixed HFD for purified salt (PS), Guerande solar salt from France (SS-G), solar salt from Y salt field (SS-Y), solar salts from T salt field (SS-T) and S salt field (SS-S)) for another eight weeks...
December 2016: Nutrition Research and Practice
https://www.readbyqxmd.com/read/27909160/evaluation-of-polymorphic-variants-in-apoptotic-genes-and-their-role-in-susceptibility-and-clinical-progression-to-systemic-lupus-erythematosus
#12
N Glesse, P Vianna, L M G Paim, M C C Matte, A K K Aguiar, P L Palhano, O A Monticielo, C V Brenol, R M Xavier, J A B Chies
BACKGROUND: Systemic lupus erythematosus (SLE) is an autoimmune disease marked by the disruption of the immune homeostasis. Patients exhibit a wide range of clinical manifestations, and environmental and genetic factors are involved in SLE pathogenesis. Evidence suggests that abnormalities in the cellular and molecular events that coordinate apoptosis may favour the generation of autoantigens involved in autoimmunity. In this way, the apoptotic deregulation may be affected by polymorphic variants in apoptotic-related genes...
November 30, 2016: Lupus
https://www.readbyqxmd.com/read/27909023/characterizing-student-perceptions-of-and-buy-in-toward-common-formative-assessment-techniques
#13
Kathleen R Brazeal, Tanya L Brown, Brian A Couch
Formative assessments (FAs) can occur as preclass assignments, in-class activities, or postclass homework. FAs aim to promote student learning by accomplishing key objectives, including clarifying learning expectations, revealing student thinking to the instructor, providing feedback to the student that promotes learning, facilitating peer interactions, and activating student ownership of learning. While FAs have gained prominence within the education community, we have limited knowledge regarding student perceptions of these activities...
2016: CBE Life Sciences Education
https://www.readbyqxmd.com/read/27908063/simulation-study-of-axial-ultrasonic-wave-propagation-in-heterogeneous-bovine-cortical-bone
#14
Toshiho Hata, Yoshiki Nagatani, Koki Takano, Mami Matsukawa
The effect of the heterogeneity of the long cortical bone is an important factor when applying the axial transmission technique. In this study, the axial longitudinal wave velocity distributions in specimens from the mid-shaft of a bovine femur were measured, in the MHz range. Bilinear interpolation and the piecewise cubic Hermite interpolating polynomial method were used to construct three-dimensional (3D) axial velocity models with a resolution of 40 μm. By assuming the uniaxial anisotropy of the bone and using the results of previous experimental studies [Yamato, Matsukawa, Yanagitani, Yamazaki, Mizukawa, and Nagano (2008b)...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27907035/exendin-4-inhibits-hepatic-lipogenesis-by-increasing-%C3%AE-catenin-signaling
#15
Mi Hae Seo, Jinmi Lee, Seok-Woo Hong, Eun-Jung Rhee, Se Eun Park, Cheol Young Park, Ki Won Oh, Sung Woo Park, Won-Young Lee
The aim of this study is to investigate whether the beneficial effect of exendin-4 on hepatic steatosis is mediated by β-catenin signaling. After the HepG2 human hepatoma cells were treated with PA for 24 hours, total triglycerides levels were increased in a dose-dependent manner, and the expression levels of perilipin family members were upregulated in cells treated with 400 μM PA. For our in vitro model of hepatic steatosis, HepG2 cells were treated with 400 μM palmitic acid (PA) in the presence or absence of 100 nM exendin-4 for 24 hours...
2016: PloS One
https://www.readbyqxmd.com/read/27905606/a-qm-mm-study-of-the-reaction-mechanism-of-human-%C3%AE-ketoacyl-reductase
#16
Fabiola E Medina, Rui P P Neves, Maria J Ramos, Pedro A Fernandes
Human fatty acid synthase (hFAS) is a multifunctional enzyme involved in a wide diversity of biological functions. For instance, it is a precursor of phospholipids and other complex processes such as the de novo synthesis of long chain fatty acid. Human FAS is also a component of biological membranes and it is implicated in the overexpression of several types of cancers. In this work, we describe the catalytic mechanism of β-ketoreductase (KR), which is a catalytic domain of the hFAS enzyme that catalyzes the reduction of β-ketoacyl to β-hydroxyacyl with the concomitant oxidation of the NADPH cofactor...
December 1, 2016: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/27905210/erythrocyte-fatty-acid-composition-does-not-influence-levels-of-free-bioavailable-and-total-25-hydroxy-vitamin-d
#17
Martin Carlsson, Ingela Nilsson, Lars Brudin, Siv-Ping Von, Pär Wanby
In vitro, mono- and polyunsaturated fatty acids (FAs) may decrease the binding affinity of vitamin D metabolites for vitamin D-binding protein, which in turn may influence their bioavailability. FAs incorporated as phospholipids in erythrocyte (ery-) cell membranes reflect dietary intake. The purpose of this study was to investigate ery-FA composition in relation to markers for vitamin D. In healthy females (age 22.6 ± 2.0 years) total 25(OH)D was measured by LC-MS/MS (n = 78), free 25(OH)D with ELISA (n = 64 of 78), and bioavailable 25(OH)D was calculated...
December 1, 2016: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/27904731/clinical-usefulness-of-long-term-application-of-fentanyl-matrix-in-chronic-non-cancer-pain-improvement-of-pain-and-physical-and-emotional-functions
#18
Jaewon Lee, Joon Shik Yoon, Jae Hyup Lee, So-Hak Chung, Kyu-Yeol Lee, Young Yul Kim, Jong Moon Kim, Min Ho Kong, Ung Gu Kang, Ye-Soo Park
BACKGROUND: Opioids are recently recommended for those who do not gain adequate pain relief from the use of acetaminophen or nonsteroidal anti-inflammatory drugs. Medical opioids are administered in various routes, and transdermal opioid products that can make up for the weaknesses of the oral or intravenous products have been developed. This study is to evaluate the clinical usefulness of fentanyl matrix in terms of the long-term improvement in pain and physical and mental functions...
December 2016: Clinics in Orthopedic Surgery
https://www.readbyqxmd.com/read/27903654/carbon-and-acyl-chain-flux-during-stress-induced-triglyceride-accumulation-by-stable-isotopic-labeling-of-the-polar-microalga-coccomyxa-subellipsoidea-c169
#19
James W Allen, Concetta C DiRusso, Paul N Black
Deriving biofuels and other lipoid products from algae is a promising future technology directly addressing global issues of atmospheric CO2 balance. To better understand the metabolism of triglyceride synthesis in algae, we examined their metabolic origins in the model species, Coccomyxa subellipsoidea C169, using stable isotopic labeling. Labeling patterns arising from (13)C-U-glucose, (13)CO2, or D2O supplementation were analyzed by GC-MS and/or LC-MS over time courses during nitrogen (N) starvation to address the roles of catabolic carbon (C) recycling, acyl chain redistribution, and de novo fatty acid (FA) synthesis during the expansion of the lipid bodies...
November 30, 2016: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27903451/fatty-acid-synthase-plays-a-positive-role-in-shrimp-immune-responses-against-vibrio-parahaemolyticus-infection
#20
Hongliang Zuo, Jiefeng Gao, Jia Yuan, Hengwei Deng, Linwei Yang, Shaoping Weng, Jianguo He, Xiaopeng Xu
Fatty acid synthase (FAS) is an important enzyme that catalyzes the synthesis of fatty acids. In this study, the role of the FAS gene from pacific white shrimp Litopenaeus vannamei (LvFAS) in immune responses against Vibrio parahaemolyticus infection was studied. The expression of LvFAS could be up-regulated upon infection of V. parahaemolyticus and stimulation of lipopolysaccharide and poly (I:C). The promoter of LvFAS was predicted to harbor a NF-κB binding site and dual-luciferase reporter assays demonstrated that the NF-κB family proteins Relish, sRelish and Dorsal could activate the transcription of LvFAS...
November 27, 2016: Fish & Shellfish Immunology
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