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FAS 酒精 神经

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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
#1
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/29345341/novel-insights-into-fas-defects-underlying-autoimmune-lymphoproliferative-syndrome-revealed-by-studies-in-consanguineous-patients
#2
REVIEW
Imen Ben-Mustapha, Nourhen Agrebi, Mohamed-Ridha Barbouche
Autoimmune lymphoproliferative syndrome (ALPS) is a primary immunodeficiency disease due to impaired Fas-Fas ligand apoptotic pathway. It is characterized by chronic nonmalignant, noninfectious lymphadenopathy and/or splenomegaly associated with autoimmune manifestations primarily directed against blood cells. Herein, we review the heterogeneous ALPS molecular bases and discuss recent findings revealed by the study of consanguineous patients. Indeed, this peculiar genetic background favored the identification of a novel form of AR ALPS-FAS associated with normal or residual protein expression, expanding the spectrum of ALPS types...
December 27, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345064/tlr8-ligation-induces-apoptosis-of-monocytic-myeloid-derived-suppressor-cells
#3
Yushe Dang, Zina J Rutnam, Gregory Dietsch, Hailing Lu, Yi Yang, Robert Hershberg, Mary L Disis
Myeloid-derived suppressor cells (MDSCs) accumulate in tumors and the peripheral blood of cancer patients and demonstrate cancer-promoting activity across multiple tumor types. A limited number of agents are known to impact MDSC activity. TLR8 is expressed in myeloid cells. We investigated expression of TLR8 on MDSC and the effect of a TLR8 agonist, motolimod, on MDSC survival and function. TLR8 was highly expressed in monocytic MDSC (mMDSC) but absent in granulocytic MDSC (gMDSC). Treatment of human PBMC with motolimod reduced the levels of mMDSC in volunteers and cancer donors versus control (P < 0...
January 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29344176/effect-of-fraxetin-on-proliferation-and-apoptosis-in-breast-cancer-cells
#4
Guodong Liu, Zhenfang Liu, Yuexiang Yan, Haiyan Wang
The aim of the present study was to examine the effect of fraxetin on proliferation and apoptosis in the MCF-7 breast cancer cell line. Cell proliferation was measused using an MTT assay and 4',6-diamidino-2-phenylindole (DAPI) staining was used to determine shrinkage and condensation. RT-PCR was used to examine the expression of factor-associated suicide (Fas) and Fas ligand (FasL) mRNA, and western blot analysis was used to examine Bax and Bcl-2 protein. MTT showed that the proliferation of MCF-7 cells was significantly inhibited by fraxetin in a dose-dependent manner...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29344008/understanding-the-factors-that-effect-maximal-fat-oxidation
#5
REVIEW
Troy Purdom, Len Kravitz, Karol Dokladny, Christine Mermier
Lipids as a fuel source for energy supply during submaximal exercise originate from subcutaneous adipose tissue derived fatty acids (FA), intramuscular triacylglycerides (IMTG), cholesterol and dietary fat. These sources of fat contribute to fatty acid oxidation (FAox) in various ways. The regulation and utilization of FAs in a maximal capacity occur primarily at exercise intensities between 45 and 65% VO2max, is known as maximal fat oxidation (MFO), and is measured in g/min. Fatty acid oxidation occurs during submaximal exercise intensities, but is also complimentary to carbohydrate oxidation (CHOox)...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29343717/the-role-of-nf%C3%AE%C2%BAb-in-spheroid-formation-of-human-breast-cancer-cells-cultured-on-the-random-positioning-machine
#6
Sascha Kopp, Jayashree Sahana, Tawhidul Islam, Asbjørn Graver Petersen, Johann Bauer, Thomas J Corydon, Herbert Schulz, Kathrin Saar, Norbert Huebner, Lasse Slumstrup, Stefan Riwaldt, Markus Wehland, Manfred Infanger, Ronald Luetzenberg, Daniela Grimm
Human MCF-7 breast cancer cells were exposed to a Random Positioning Machine (RPM). After 24 hours (h) the cells grew either adherently within a monolayer (AD) or within multicellular spheroids (MCS). AD and MCS populations were separately harvested, their cellular differences were determined performing qPCR on genes, which were differently expressed in AD and MCS cells. Gene array technology was applied to detect RPM-sensitive genes in MCF-7 cells after 24 h. Furthermore, the capability to form multicellular spheroids in vitro was compared with the intracellular distribution of NF-kappaB (NFκB) p65...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343251/effects-of-the-isoflavone-genistein-in-early-life-stages-of-the-senegalese-sole-solea-senegalensis-role-of-the-survivin-and-proliferation-versus-apoptosis-pathways
#7
Carmen Sarasquete, María Úbeda-Manzanaro, Juan B Ortiz-Delgado
BACKGROUND: Phytochemical flavonoids are widely distributed in the environment and are derived from many anthropogenic activities. The isoflavone genistein is a naturally occurring compound found in soya products that are habitual constituents of the aquafeeds. This isoflavone possesses oestrogenic biological activity and also apoptotic properties. The present study has been performed to determine the effects of the genistein in the early life stages of the flatfish Senegalese sole during the first month of larval life, and it is focused especially at the metamorphosis, analysing the expression transcript levels and the immunohistochemical protein patterns implicated in the cell proliferation and apoptosis pathways (proliferation cellular/PCNA, anti-apoptosis Survivin/BIRC-5, death receptors/Fas, and Caspases)...
January 17, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29339218/protective-effect-of-patchoulene-epoxide-against-ethanol-induced-gastric-ulcer-in-rats-influence-on-oxidative-stress-inflammation-and-apoptosis
#8
Jiali Liang, Yaoxing Dou, Xue Wu, Huilin Li, Jiazhen Wu, Qionghui Huang, Dandan Luo, Tiegang Yi, Yuhong Liu, Ziren Su, Jianping Chen
Patchoulene epoxide (PAO), a tricyclic sesquiterpene isolated from the long-strored patchouli oil, has been demonstrated the anti-inflammatory activity in vivo based on our previous study. However, the gastroprotective effect of PAO still remains unknown. Therefore, in the present study, ethanol-induced gastric ulcer in rats was carried out to evaluate the anti-ulcerogenic activity of PAO and to elucidate the potential mechanisms that involved. According to our results, macroscopic examination revealed that pre-treatment with PAO signficantly reduced ethanol-induced gastric ulcer areas as compared with the vehicle group, which was also supported by histological evaluation...
January 12, 2018: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29339197/differential-insulin-and-steroidogenic-signaling-in-insulin-resistant-and-non-insulin-resistant-human-luteinized-granulosa-cells-a-study-in-pcos-patients
#9
Muskaan Belani, Abhilash Deo, Preeti Shah, Manish Banker, Pawan Singal, Sarita Gupta
Insulin resistance (IR) is one of the significant aberrations in polycystic ovarian syndrome (PCOS), however is only observed in 70%-80% of obese PCOS and 20%-25% of lean PCOS. Hyperinsulinemia accompanies PCOS-IR along with hyperandrogenemia against normal insulin and androgen levels in PCOS-non insulin resistance (NIR). This could possibly be due to defects in the downstream signaling pathways. The study thus aims to unravel insulin and steroidogenic signaling pathways in luteinized granulosa cells isolated from PCOS -IR and NIR vs matched controls...
January 12, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29339045/deficiency-of-dietary-pyridoxine-disturbed-the-intestinal-physical-barrier-function-of-young-grass-carp-ctenopharyngodon-idella
#10
Pei Wu, Xin Zheng, Xiao-Qiu Zhou, Wei-Dan Jiang, Yang Liu, Jun Jiang, Sheng-Yao Kuang, Ling Tang, Yong-An Zhang, Lin Feng
The aim of this study was to assess the effects of dietary pyridoxine (PN) deficiency on intestinal antioxidant capacity, cell apoptosis and intercellular tight junction in young grass carp (Ctenopharyngodon idella). A total of 540 young grass carp (231.85 ± 0.63 g) were fed six diets containing graded levels of PN (0.12-7.48 mg/kg diet) for 10 weeks. At the end of the feeding trial, the fish were challenged with Aeromonas hydrophila for 2 weeks. The results showed that compared with the optimal PN level, PN deficiency (1) increased the contents of reactive oxygen species (ROS), malondialdehyde (MDA) and protein carbonyl (PC), decreased the activities and mRNA levels of antioxidant enzymes such as copper, zinc superoxide dismutase (CuZnSOD), catalase (CAT), glutathione peroxidase (GPx), glutathione-S-transferase (GST) and glutathione reductase (GR) (P < ...
January 12, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29338314/inflammatory-cytokines-in-the-papillary-tips-and-urine-of-nephrolithiasis-patients
#11
Andrew Yang Sun, Bryan Hinck, Benjamin R Cohen, Karen Keslar, Robert L Fairchild, Manoj Monga
INTRODUCTION: Intrarenal inflammation has been implicated in the pathogenesis of nephrolithiasis, with prior work showing increased urine levels of IL-6, IL-8, and CCL-2 in stone patients. However, no studies have assessed for inflammation in the renal papillae. We sought to characterize novel papillary tip and urinary biomarkers in stone patients. METHODS: 92 patients with nephrolithiasis undergoing percutaneous nephrolithotomy were enrolled. Papillary tip biopsies, kidney urine, and bladder urine were collected, as well as voided urine from 8 healthy volunteers...
January 16, 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29336364/mechanism-of-chronic-stress-induced-reduced-atherosclerotic-medial-area-and-increased-plaque-instability-in-rabbit-models-of-chronic-stress
#12
Ze-Mou Yu, Xiao-Tao Deng, Ruo-Mei Qi, Lu-Yan Xiao, Chong-Qing Yang, Tao Gong
BACKGROUND: Chronic stress contributes to increased risks of atherosclerotic diseases including heart disease, stroke, and transient ischemic attack. However, its underline mechanisms are poorly understood. This study aimed to elucidate the mechanism via which chronic stress exerts its effect on atherosclerosis (AS). METHODS: Fifty male New Zealand white rabbits were used. Aortic balloon-injury model was applied. Both social stress and physical stress methods were adopted to establish chronic stress models...
January 20, 2018: Chinese Medical Journal
https://www.readbyqxmd.com/read/29336242/the-influence-of-fatty-acids-on-metoprolol-human-serum-albumin-interaction-in-low-affinity-binding-sites-a-multifactorial-nmr-approach
#13
Agnieszka Szkudlarek, Mariusz Mogielnicki, Danuta Pentak, Anna Ploch, Malgorzata Maciazek-Jurczyk
The aim of the study was to evaluate the mechanism of interaction between metoprolol (MTP) and human serum albumin (HSA) using 1H NMR technique. The analysis of the drug-albumin interaction was based on the observed chemical shifts in combination with correlation times, 2D NOESY 1H NMR spectra and association constants and allowed us to observe the interactions between the aromatic rings of the drug and the amino acids of the protein. The binding of the drug, both in the hydrophobic subdomain and on the surface of the albumin, increases in the presence of fatty acids (FAs)...
January 15, 2018: Protein and Peptide Letters
https://www.readbyqxmd.com/read/29335275/interplay-between-chrebp-and-srebp-1c-coordinates-postprandial-glycolysis-and-lipogenesis-in-livers-of-mice
#14
Albert G Linden, Shili Li, Hwa Y Choi, Fei Fang, Masashi Fukasawa, Kosaku Uyeda, Robert E Hammer, Jay D Horton, Luke J Engelking, Guosheng Liang
Lipogenesis in liver is highest in the postprandial state; insulin activates SREBP-1c, which transcriptionally activates genes involved in fatty acid (FA) synthesis, whereas glucose activates ChREBP, which activates both glycolysis and FA synthesis. Whether SREBP-1c and ChREBP act independently of one another is unknown. Here, we characterized mice with liver-specific deletion of ChREBP (L-Chrebp-/- mice). Hepatic ChREBP deficiency resulted in reduced mRNA levels of glycolytic and lipogenic enzymes, particularly in response to sucrose refeeding following fasting, a dietary regimen that elicits maximal lipogenesis...
January 15, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29332565/beyond-the-lock-and-key-paradigm-targeting-lipid-rafts-to-induce-the-selective-apoptosis-of-cancer-cells
#15
Anna Carolina Schneider Alves, Reinaldo Antonio Dias, Luciano Porto Kagami, Gustavo Machado das Neves, Fernando Cidade Torres, Vera Lucia Eifler-Lima, Ivone Carvalho, Carolina de Miranda Silva, Daniel Fabio Kawano
For more than 40 years, the fluid mosaic model of cellular membranes have supported our vision of an inert lipid bilayer containing membrane protein receptors that are randomly hit by extracellular molecules to trigger intracellular signaling events. However, the notion that compartmentalized cholesterol- and sphingomyelin-rich membrane microdomains (known as lipid rafts) spatially arrange receptors and effectors to promote kinetically favorable interactions necessary for the signal transduction sounds much more realistic...
January 10, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29330115/pediatric-onset-evans-syndrome-heterogeneous-presentation-and-high-frequency-of-monogenic-disorders-including-lrba-and-ctla4-mutations
#16
Caroline Besnard, Eva Levy, Nathalie Aladjidi, Marie-Claude Stolzenberg, Aude Magerus-Chatinet, Olivier Alibeu, Patrick Nitschke, Stéphane Blanche, Olivier Hermine, Eric Jeziorski, Judith Landman-Parker, Guy Leverger, Nizar Mahlaoui, Gérard Michel, Isabelle Pellier, Felipe Suarez, Isabelle Thuret, Geneviève de Saint-Basile, Capucine Picard, Alain Fischer, Bénédicte Neven, Frédéric Rieux-Laucat, Pierre Quartier
Evans syndrome (ES) is defined by the combination of autoimmune hemolytic anemia and immune thrombocytopenia. Clinical presentation includes manifestations of immune dysregulation, found in primary immune deficiencies, autoimmune lymphoproliferative syndrome with FAS (ALPS-FAS), Cytotoxic T Lymphocyte Antigen-4 (CTLA-4) and Lipopolysaccharide-Responsive vesicle trafficking Beige-like and Anchor protein (LRBA) defects. We report the clinical history and genetic results of 18 children with ES after excluding ALPS-FAS...
January 9, 2018: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/29329295/novel-signature-fatty-acid-profile-of-the-giant-manta-ray-suggests-reliance-on-an-uncharacterised-mesopelagic-food-source-low-in-polyunsaturated-fatty-acids
#17
Katherine B Burgess, Michel Guerrero, Andrea D Marshall, Anthony J Richardson, Mike B Bennett, Lydie I E Couturier
Traditionally, large planktivorous elasmobranchs have been thought to predominantly feed on surface zooplankton during daytime hours. However, the recent application of molecular methods to examine long-term assimilated diets, has revealed that these species likely gain the majority from deeper or demersal sources. Signature fatty acid analysis (FA) of muscle tissue was used to examine the assimilated diet of the giant manta ray Mobula birostris, and then compared with surface zooplankton that was collected during feeding and non-feeding events at two aggregation sites off mainland Ecuador...
2018: PloS One
https://www.readbyqxmd.com/read/29328619/characterization-of-the-polyspecific-transferase-of-murine-type-i-fatty-acid-synthase-fas-and-implications-for-polyketide-synthase-pks-engineering
#18
Alexander Rittner, Karthik S Paithankar, Khanh Vu Huu, Martin Grininger
Fatty acid synthases (FASs) and polyketide synthases (PKSs) condense acyl compounds to fatty acids and polyketides, respectively. Both, FASs and PKSs, harbor acyltransferases (ATs), which select substrates for condensation by β-ketoacyl synthases (KSs). Here, we present the structural and functional characterization of the polyspecific malonyl/acetyltransferase (MAT) of murine FAS. We assign kinetic constants for the transacylation of the native substrates, acetyl- and malonyl-CoA, and demonstrate the promiscuity of FAS to accept structurally and chemically diverse CoA-esters...
January 12, 2018: ACS Chemical Biology
https://www.readbyqxmd.com/read/29328031/metabolic-profile-of-serum-fatty-acids-in-patients-with-comorbidity-of-chro-nic-obstructive-pulmonary-disease-and-chronic-pancreatitis
#19
N Zhelezniakova, L Pasiyeshvili, T Bocharova, T Pasiieshvili, O Zhelezniakov
Objective - study of blood serum fatty acid metabolic profile in patients with comorbidity of COPD and chronic pancreatitis. 238 patients were examined, of them 131 with combined COPD and chronic pancreatitis and 107 with isolated COPD run. In study of fatty acid spectrum biological materials were prepared and gas chromatography analysis of blood serum lipid fatty acid spectrum performed according to methodology by L.V.Sazonenko et al. The study showed that COPD exacerbation was accompanied with by changes in contents of particular fatty acids both in patients with isolated COPD and in patients with comorbidity in comparison with almost healthy patients...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29326315/plasma-n-3-and-n-6-fatty-acids-are-differentially-related-to-carotid-plaque-and-its-progression-mesa-the-multi-ethnic-study-of-atherosclerosis
#20
Brian T Steffen, Weihua Guan, James H Stein, Mathew C Tattersall, Joel D Kaufman, Veit Sandfort, Moyses Szklo, Michael Y Tsai
OBJECTIVE: ω-3 (n-3) fatty acids (FAs) have long been considered healthful dietary components, yet recent clinical trials have questioned their cardiovascular benefits. By contrast, the ω-6 (n-6) FAs have been considered harmful, proatherogenic macronutrients, despite an absence of empirical evidence supporting this hypothesis. We aimed to determine whether plasma n-3 and n-6 FAs are related to risk of carotid plaque and its progression in 3327 participants of the MESA (Multi-Ethnic Study of Atherosclerosis)...
January 11, 2018: Arteriosclerosis, Thrombosis, and Vascular Biology
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