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FAS 酒精 神经

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https://www.readbyqxmd.com/read/28434120/involvement-of-fas-fasl-pathway-in-the-murine-model-of-atopic-dermatitis
#1
Karolina Bień, Magdalena Żmigrodzka, Piotr Orłowski, Aleksandra Fruba, Łukasz Szymański, Wanda Stankiewicz, Zuzanna Nowak, Tadeusz Malewski, Małgorzata Krzyżowska
OBJECTIVE AND DESIGN: The aim of this study was to elucidate the role of apoptosis mediated through Fas/FasL pathway using the mouse model of atopic dermatitis (AD). MATERIALS AND TREATMENT: AD was induced by epicutaneous application of ovalbumin (OVA) in wild-type C57BL/6, B6. MRL-Faslpr/J (Fas-) and B6Smn.C3-Faslgld/J (FasL-) mouse strains. METHODS: Skin samples were subjected to staining for Fas/FasL expression, M30 epitope and assessment of inflammatory response via immunohistochemical staining...
April 22, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28433710/down-regulation-of-islet-amyloid-polypeptide-expression-induces-death-of-human-annulus-fibrosus-cells-via-mitochondrial-and-death-receptor-pathways
#2
Xinghuo Wu, Kun Wang, Wenbin Hua, Shuai Li, Xianzhe Liu, Wei Liu, Yu Song, Yukun Zhang, Zengwu Shao, Cao Yang
Islet amyloid polypeptide (IAPP) exerts its biological effects by participating in the regulation of glucose metabolism and cell apoptosis. The main goal of the present study was to investigate the expression of IAPP in degenerated intervertebral disc tissue and IAPP's modulation of extracellular matrix (ECM) catabolic and anabolic genes in human AF cells. We found that the expression of IAPP, the calcitonin receptor, and receptor activity modifying protein decreased considerably in AF cells during the progression of intervertebral disc degeneration (IDD)...
April 19, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28431398/decreased-calpain-activity-in-chronic-myeloid-leukemia-impairs-apoptosis-by-increasing-survivin-in-myeloid-progenitors-and-xiap1-in-differentiating-granulocytes
#3
Weiqi Huang, Ling Bei, Elizabeth E Hjort, Elizabeth A Eklund
Chronic Myeloid Leukemia (CML) is characterized by translocations between chromosomes 9 and 22, resulting in expression of Bcr-abl oncogenes. Although the clinical course of CML was revolutionized by development of Bcr-abl-directed tyrosine kinase inhibitors (TKIs), CML is not cured by these agents. Specifically, the majority of subjects relapsed in clinical trials attempting TKI discontinuation, suggesting persistence of leukemia stem cells (LSCs) even in molecular remission. Identifying mechanisms of CML-LSC persistence may suggest rationale therapeutic targets to augment TKI efficacy and lead to cure...
April 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28431280/interleukin-1-receptor-associated-kinase-1-is-a-potential-therapeutic-target-of-anti-inflammatory-therapy-for-systemic-lupus-erythematosus
#4
Mingfang Li, Datang Yu, Bing Ni, Fei Hao
Systemic lupus erythematosus (SLE) is a chronic autoimmune inflammatory disease and currently has no effective therapy. The genome-wide analyses indicate that interleukin-1 receptor associated kinase 1 (IRAK1) is associated with the susceptibility of SLE in humans. In the present study, we identified that IRAK1 was overexpressed and hyper-activated in splenic mononuclear cells from B6.MRL-Fas(lpr)/Nju (B6.lpr) mice and peripheral blood mononuclear cells (PBMCs) from SLE patients. Intraperitoneal treatment with a small molecular inhibitor of IRAK1 (IRAK1/4 inhibitor or IRAK-Inh) significantly mitigated inflammatory responses and renal injury in B6...
April 18, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28430821/dietary-dha-epa-ratio-affected-tissue-fatty-acid-profiles-antioxidant-capacity-hematological-characteristics-and-expression-of-lipid-related-genes-but-not-growth-in-juvenile-black-seabream-acanthopagrus-schlegelii
#5
Min Jin, Óscar Monroig, You Lu, Ye Yuan, Yi Li, Liyun Ding, Douglas R Tocher, Qicun Zhou
An 8-week feeding trial was conducted to investigate the effects of dietary docosahexaenoic to eicosapentaenoic acid ratio (DHA/EPA) on growth performance, fatty acid profiles, antioxidant capacity, hematological characteristics and expression of some lipid metabolism related genes of juvenile black seabream (Acanthopagrus schlegelii) of initial weight 9.47 ± 0.03 g. Five isonitrogenous and isolipidic diets (45% crude protein and 14% crude lipid) were formulated to contain graded DHA/EPA ratios of 0.65, 1...
2017: PloS One
https://www.readbyqxmd.com/read/28430250/tolerancing-the-alignment-of-large-core-optical-fibers-fiber-bundles-and-light-guides-using-a-fourier-approach
#6
Travis W Sawyer, Ryan Petersburg, Sarah E Bohndiek
Optical fiber technology is found in a wide variety of applications to flexibly relay light between two points, enabling information transfer across long distances and allowing access to hard-to-reach areas. Large-core optical fibers and light guides find frequent use in illumination and spectroscopic applications, for example, endoscopy and high-resolution astronomical spectroscopy. Proper alignment is critical for maximizing throughput in optical fiber coupling systems; however, there currently are no formal approaches to tolerancing the alignment of a light-guide coupling system...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28429574/flip-angle-optimization-for-balanced-ssfp-cardiac-cine-imaging-following-the-application-of-standard-extracellular-contrast-agent-gadobutrol
#7
Daniel L R Kuetting, Darius Dabir, Julian Luetkens, Andreas Feisst, Rami Homsi, Daniel Thomas, Hans H Schild, Alois M Sprinkart
PURPOSE: To investigate the effect of the flip angle (FA) on the blood-myocardium contrast and to define the FA leading to highest image quality in contrast-enhanced balanced steady-state free precession (bSSFP) images. bSSFP images provide excellent contrast between myocardium and blood with high signal-to-noise and contrast-to-noise ratios (SNR, CNR). In clinical practice, bSSFP images are typically acquired following the injection of extracellular contrast agents (ECAs), although ECAs decrease the blood-myocardium contrast...
April 21, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28429330/growth-kinetics-fatty-acid-composition-and-metabolic-activity-changes-of-crypthecodinium-cohnii-under-different-nitrogen-source-and-concentration
#8
Waseem Safdar, Muhammad Shamoon, Xinyi Zan, Junaid Haider, Hafiz Rizwan Sharif, Muhammad Shoaib, Yuanda Song
The effect of varying concentrations of the nitrogen source on the growth kinetics, lipid accumulation, lipid and DHA productivity, and fatty acid composition of C. cohnii was elucidated. Growth of C. cohnii was in three distinct growth stages: cell growth, lipid accumulation and a final lipid turnover stage. Most of lipids were accumulated in lipid accumulation stage (48-120 h) though, slow growth rate was observed during this stage. NaNO3 supported significantly higher lipid content (26.9% of DCW), DHA content (0...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28428545/beclin-1-mediated-autophagy-protects-against-cadmium-activated-apoptosis-via-the-fas-fasl-pathway-in-primary-rat-proximal-tubular-cell-culture
#9
Gang Liu, Yan Yuan, Mengfei Long, Tongwang Luo, Jianchun Bian, Xuezhong Liu, Jianhong Gu, Hui Zou, Ruilong Song, Yi Wang, Lin Wang, Zongping Liu
The Fas/FasL signaling pathway is one of the primary apoptosis pathways, but the involvement and regulatory mechanism of this pathway by autophagy remain unclear. Here we demonstrated that cadmium (Cd) activated the Fas/FasL apoptosis pathway in rat proximal tubular (rPT) cells; this was accompanied by simultaneous activation of autophagy resulted in reduced apoptosis. In this model, we induced autophagy through RAPA and further demonstrated that autophagy protects against activation of Fas/FasL signaling and apoptosis...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428251/loopomics-a-new-functional-approach-to-life
#10
Bruno Burlando
Living beings maintain steady state despite a complex of processes occurring at various scales, from molecules to organisms. Such a property, called homeostasis, has been known since long, but a full explanation of it is still missing. I propose to view biological systems as a complex of Functional Agents (FA), such as biomolecules, cells or organs, where each FA is controlled upstream by at least one FA, and controls downstream at least one FA. By applying this scheme to each FA, and given a finite number of them, a closed network is obtained, where every FA is involved in at least one loop...
April 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28428059/the-decreased-growth-performance-and-impaired-immune-function-and-structural-integrity-by-dietary-iron-deficiency-or-excess-are-associated-with-tor-nf-%C3%AE%C2%BAb-p38mapk-nrf2-and-mlck-signaling-in-head-kidney-spleen-and-skin-of-grass-carp-ctenopharyngodon-idella
#11
Yan-Lin Guo, Wei-Dan Jiang, Pei Wu, Yang Liu, Xiao-Qiu Zhou, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Lin Feng
This study was conducted to investigate the effects of dietary iron on the growth, and immune function and structural integrity in head kidney, spleen and skin as well as the underlying signaling of young grass carp (Ctenopharyngodon idella). Total 630 grass carp (242.32 ± 0.58 g) were fed diets containing graded levels of iron at 12.15 (basal diet), 35.38, 63.47, 86.43, 111.09, 136.37 mg/kg (diets 2-6 were added with ferrous fumarate) and 73.50 mg/kg (diet 7 was added with ferrous sulfate) diet for 60 days...
April 17, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28427299/effects-of-low-frequency-repetitive-transcranial-magnetic-stimulation-on-upper-extremity-motor-recovery-and-functional-outcomes-in-chronic-stroke-patients-a-randomized-controlled-trial
#12
Ayhan Aşkın, Aliye Tosun, Ümit Seçil Demirdal
BACKGROUND: Repetitive transcranial magnetic stimulation (rTMS) was suggested as a preconditioning method that would increase brain plasticity and that it would be optimal to combine rTMS with intensive rehabilitation. OBJECTIVE: To assess the efficacy of inhibitory rTMS on upper extremity motor recovery and functional outcomes in chronic ischemic stroke patients. METHODS: In this randomized controlled trial, experimental group received low-frequency (LF) rTMS to the primary motor cortex of the unaffected side + physical therapy (PT), and control group received PT...
April 20, 2017: Somatosensory & Motor Research
https://www.readbyqxmd.com/read/28427229/nadph-accumulation-is-responsible-for-apoptosis-in-breast-cancer-cells-induced-by-fatty-acid-synthase-inhibition
#13
Yanfen Cui, Pan Xing, Yuanyuan Wang, Miao Liu, Li Qiu, Guoguang Ying, Binghui Li
Fatty acid synthase (FAS), as a key enzyme involved in de novo lipogenesis, is highly expressed in many cancers. FAS inhibition induces cell death in vivo and in vitro, rendering FAS as an attractive target for cancer therapy, but the defined mechanism is still not well understood. Herein, we confirmed that FAS was highly expressed in breast cancers and FAS inhibition by its inhibitors or knockdown induced apoptosis in breast cancer cells. Our results showed that a significantly high level of reactive oxygen species was induced but not responsible for apoptosis in breast cancer cells by FAS inhibition...
March 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28425856/apicidin-inhibited-proliferation-and-invasion-and-induced-apoptosis-via-mitochondrial-pathway-in-non-small-cell-lung-cancer-glc-82-cells
#14
Jianye Zhang, Zhenzhu Lai, Wenjing Huang, Huiping Ling, Minting Lin, Sili Tang, Yun Liu, Yiwen Tao
Apicidin, an inhibitor of histone deacetylase obtained from the mangrove endophytic fungi Fusarium sp., showed a wide range of antiproliferative activity against various cancer cell lines. Apicidin has also been reported to induce apotosis via Fas/Fas ligand. Yet few studies have focused on mitochondrial pathway for its anti-tumor activity. Here, we evaluated its involved mitochondrial mechanism against lung cancer GLC-82 cells. Its structure was elucidated by MS and NMR spectroscopic data, and comparison of those data with published data...
April 19, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/28424702/dual-role-of-fas-fasl-mediated-signal-in-peripheral-immune-tolerance
#15
REVIEW
Akiko Yamada, Rieko Arakaki, Masako Saito, Yasusei Kudo, Naozumi Ishimaru
Fas-mediated apoptosis contributes to physiological and pathological cellular processes, such as differentiation and survival. In particular, the roles of Fas in immune cells are complex and critical for the maintenance of immune tolerance. The precise pathways and unique functions associated with Fas/FasL-mediated signaling in the immune system are known. The dual character of Fas/FasL-mediated immune regulation that induces beneficial or harmful effects is associated with the onset or development of immune disorders...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28423579/systematic-review-with-network-meta-analysis-comparative-efficacy-of-different-enteral-immunonutrition-formulas-in-patients-underwent-gastrectomy
#16
Guo-Min Song, Xiao-Ling Liu, Wei Bian, Jing Wu, Yong-Hong Deng, Hui Zhang, Xu Tian
OBJECTIVES: Optimal enteral immunonutrition (EIN) regime for gastric cancer (GC) patients underwent gastrectomy remains uncertainty. To assess comparative efficacy of different EIN formulas in GC patients underwent gastrectomy, we performed network meta-analysis. RESULTS: We included 11 RCTs enrolling 840 patients. Pairwise meta-analysis indicated that EIN (RR 0.56, 95% CI 0.36-0.86; MD -0.42, 95% CI -0.74-0.10), Arg+RNA+ω-3-FAs (RR 0.37, 95% CI 0.22-0.63; MD -0...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422956/chronic-activation-of-ppar%C3%AE-with-fenofibrate-reduces-autophagic-proteins-in-the-liver-of-mice-independent-of-fgf21
#17
Eunjung Jo, Songpei Li, Qingning Liang, Xinmei Zhang, Hao Wang, Terence P Herbert, Trisha A Jenkins, Aimin Xu, Ji-Ming Ye
Autophagy is a catabolic mechanism to degrade cellular components to maintain cellular energy levels during starvation, a condition where PPARα may be activated. Here we report a reduced autophagic capacity in the liver following chronic activation of PPARα with fenofibrate (FB) in mice. Chronic administration of the PPARα agonist FB substantially reduced the levels of multiple autophagy proteins in the liver (Atg3, Agt4B, Atg5, Atg7 and beclin 1) which were associated with a decrease in the light chain LC3II/LC3I ratio and the accumulation of p62...
2017: PloS One
https://www.readbyqxmd.com/read/28421904/effects-of-1alpha-25-dihydroxyvitamin-d3-on-programmed-cell-death-of-ishikawa-endometrial-cancer-cells-through-ezrin-phosphorylation
#18
Tae-Hee Kim, Junsik Park, Jeong-Sang Lee, Hae-Hyeog Lee
This study investigated the effects of 1α, 25-dihydroxyvitamin D3-induced cell death and its underlying molecular mechanisms in Ishikawa endometrial carcinoma cells. The effects of 1α, 25-dihydroxyvitamin D3 on Ishikawa cells were examined by 3-[4,5-dimethylthiazol-2-yl]-2.5-diphenyl-tetrazolium bromide, thiazolyl blue (MTT) assay. 1α, 25-dihydroxyvitamin D3 was shown to induce programmed cell death in Ishikawa endometrial carcinoma cells by activation of caspase-3 and caspase-9, along with elevation of Bcl-2 and Bcl-xL...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28421122/potential-antitumor-activity-and-apoptosis-induction-of-glossostemon-bruguieri-root-extract-against-hepatocellular-carcinoma-cells
#19
Mona S Alwhibi, Mahmoud I M Khalil, Mohamed M Ibrahim, Gehan A El-Gaaly, Ahmed S Sultan
Glossostemon bruguieri (moghat) is used as a nutritive and demulcent drink. This study was performed to investigate the antiproliferative effects of moghat root extract (MRE) and its apoptotic mechanism in hepatocellular carcinoma (HCC) cells, HepG2 and Hep3B. MTT assay, morphological changes, apoptosis enzyme linked immunosorbent assay, caspase and apoptotic activation, flow cytometry, and immunoblot analysis were employed. The IC50 of MRE for HepG2 (910 ± 6 μg/ml) and for Hep3B (1510 ± 5 μg/ml) induced significant growth-inhibitory effects against HCC cells, with no cytotoxic effect on normal hepatocytes...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28421037/lipid-processing-in-the-brain-a-key-regulator-of-systemic-metabolism
#20
REVIEW
Kimberley D Bruce, Andrea Zsombok, Robert H Eckel
Metabolic disorders, particularly aberrations in lipid homeostasis, such as obesity, type 2 diabetes mellitus, and hypertriglyceridemia often manifest together as the metabolic syndrome (MetS). Despite major advances in our understanding of the pathogenesis of these disorders, the prevalence of the MetS continues to rise. It is becoming increasingly apparent that intermediary metabolism within the central nervous system is a major contributor to the regulation of systemic metabolism. In particular, lipid metabolism within the brain is tightly regulated to maintain neuronal structure and function and may signal nutrient status to modulate metabolism in key peripheral tissues such as the liver...
2017: Frontiers in Endocrinology
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