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125篇 您的检索式:作者名="LUZ S"
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1Comparison between endoscopic sclerotherapy and band ligation for hemostasis of acute variceal bleeding显示文摘AIM:To compare band ligation(BL) with endoscopic sclerotherapy(SCL) in patients admitted to an emergency unit for esophageal variceal rupture. METHODS:A prospective,randomized,single-center study without crossover was conducted.After endoscopic diagnosis of esophageal variceal rupture,patients were randomized into groups for SCL or BL treatment.Sclerotherapy was performed by ethanolamine oleate intravascular injection both above and below the rupture point,with a maximum volume of 20 mL.For BL patients,banding at the rupture point was attempted,followed by ligation of all variceal tissue of the distal esophagus.Primary outcomes for both groups were initial failure of bleeding control(5 d) ,early re-bleeding(5 d to 6 wk),and complications,including mortality.From May 2005 to May 2007,100 patients with variceal bleeding were enrolled in thestudy:50 SCL and 50 BL patients.No differences between groups were observed across gender,age,ChildPugh status,presence of shock at admission,mean hemoglobin levels,and variceal size. RESULTS:No differences were found between groups for bleeding control,early re-bleeding rates,complications,or mortality.After 6 wk,36(80%) SCL and 33(77 %) EBL patients were alive and free of bleeding.A statistically significant association between Child-Pugh status and mortality was found,with 16%mortality in Child A and B patients and 84%mortality in Child C patients(P<0.001) . CONCLUSION:Despite the limited number of patients included,our results suggest that SCL and BL are equally efficient for the control of acute variceal bleeding.Gustavo Oliveira Luz Fauze Maluf-Filho Sérgio Eiji Matuguma Fábio Yuji Hondo Edson Ide Jeane Martins Melo Spencer Cheng Paulo Sakai 2011World Journal of Gastrointestinal Endoscopy2011,3,5:20
2Arachidyl amido cholanoic acid improves liver glucose and lipid homeostasis in nonalcoholic steatohepatitis via AMPK and mTOR regulation显示文摘BACKGROUND Arachidyl amido cholanoic acid(Aramchol)is a potent downregulator of hepatic stearoyl-CoA desaturase 1(SCD1)protein expression that reduces liver triglycerides and fibrosis in animal models of steatohepatitis.In a phase IIb clinical trial in patients with nonalcoholic steatohepatitis(NASH),52 wk of treatment with Aramchol reduced blood levels of glycated hemoglobin A1c,an indicator of glycemic control.AIM To assess lipid and glucose metabolism in mouse hepatocytes and in a NASH mouse model[induced with a 0.1%methionine and choline deficient diet(0.1MCD)]after treatment with Aramchol.METHODS Isolated primary mouse hepatocytes were incubated with 20μmol/L Aramchol or vehicle for 48 h.Subsequently,analyses were performed including Western blot,proteomics by mass spectrometry,and fluxomic analysis with 13C-uniformly labeled glucose.For the in vivo part of the study,male C57BL/6J mice were randomly fed a control or 0.1MCD for 4 wk and received 1 or 5 mg/kg/d Aramchol or vehicle by intragastric gavage for the last 2 wk.Liver metabolomics were assessed using ultra-high-performance liquid chromatography-time of flight-MS for the determination of glucose metabolism-related metabolites.RESULTS Combination of proteomics and Western blot analyses showed increased AMPK activity while the activity of nutrient sensor mTORC1 was decreased by Aramchol in hepatocytes.This translated into changes in the content of their downstream targets including proteins involved in fatty acid(FA)synthesis and oxidation[PACCα/β(S79),SCD1,CPT1A/B,HADHA,and HADHB],oxidative phosphorylation(NDUFA9,NDUFB11,NDUFS1,NDUFV1,ETFDH,and UQCRC2),tricarboxylic acid(TCA)cycle(MDH2,SUCLA2,and SUCLG2),and ribosome(P-p70S6K[T389]and P-S6[S235/S236]).Flux experiments with 13Cuniformely labeled glucose showed that TCA cycle cataplerosis was reduced by Aramchol in hepatocytes,as indicated by the increase in the number of rounds that malate remained in the TCA cycle.Finally,liver metabolomic analysis showed that glucose homeostasis was improved by Aramchol in 0.1MCD fed mice in a dose-dependent manner,showing normalization of glucose,G6P,F6P,UDP-glucose,and Rbl5P/Xyl5P.CONCLUSION Aramchol exerts its effect on glucose and lipid metabolism in NASH through activation of AMPK and inhibition of mTORC1,which in turn activate FAβ-oxidation and oxidative phosphorylation.David Fernández-Ramos Fernando Lopitz-Otsoa Laura Delacruz-Villar Jon Bilbao Martina Pagano Laura Mosca Maider Bizkarguenaga Marina Serrano-Macia Mikel Azkargorta Marta Iruarrizaga-Lejarreta Jesús Sot Darya Tsvirkun Sebastiaan Martijn van Liempd Felix M Goni Cristina Alonso María Luz Martínez-Chantar Felix Elortza Liat Hayardeny Shelly C Lu JoséM Mato 2020World Journal of Gastroenterology2020,26,34:5
3Neutrophile-to-lymphocyte,lymphocyte-to-monocyte,and platelet-tolymphocyte ratios as prognostic and response biomarkers for resectable locally advanced gastric cancer显示文摘BACKGROUND Perioperative fluorouracil plus leucovorin,oxaliplatin,and docetaxel(FLOT)improves prognosis in locally advanced gastric cancer(LAGC).Neutrophil-to-lymphocyte(NLR),lymphocyte-tomonocyte(LMR),and platelet-to-lymphocyte(PLR)ratios are prognostic biomarkers but not predictive factors.AIM To assess blood ratios’(NLR,LMR and PLR)potential predictive response to FLOT and survival outcomes in resectable LAGC patients.METHODS This was a multicentric retrospective study investigating the clinical potential of NLR,LMR,and PLR in resectable LAGC patients,treated with at least one preoperative FLOT cycle,from 12 Portuguese hospitals.Means were compared through non-parametric Mann-Whitney tests.Receiver operating characteristic curve analysis defined the cut-off values as:High PLR>141 for progression and>144 for mortality;high LMR>3.56 for T stage regression(TSR).Poisson and Cox regression models the calculated relative risks/hazard ratios,using NLR,pathologic complete response,TSR,and tumor regression grade(TRG)as independent variables,and overall survival(OS)as the dependent variable.RESULTS This study included 295 patients(mean age,63.7 years;59.7% males).NLR was correlated with survival time(r=0.143,P=0.014).PLR was associated with systemic progression during FLOT(P=0.022)and mortality(P=0.013),with high PLR patients having a 2.2-times higher risk of progression[95% confidence interval(CI):0.89-5.26]and 1.5-times higher risk of mortality(95%CI:0.92-2.55).LMR was associated with TSR,and high LMR patients had a 1.4-times higher risk of achieving TSR(95%CI:1.01-1.99).OS benefit was found with TSR(P=0.015)and partial/complete TRG(P<0.001).Patients without TSR and with no evidence of pathological response had 2.1-times(95%CI:1.14-3.96)and 2.8-times(95%CI:1.6-5)higher risk of death.CONCLUSION Higher NLR is correlated with longer survival time.High LMR patients have a higher risk of decreasing T stage,whereas high PLR patients have higher odds of progressing under FLOT and dying.Patients with TSR and a pathological response have better OS and lower risk of dying.Tiago Cruz Tomás Ines Eiriz Marina Vitorino Rodrigo Vicente Joao Gramaca Alicia Guadalupe Oliveira Paulo Luz Mafalda Baleiras Ana Sofia Spencer Luísa Leal Costa Patrícia Liu Joana Mendonca Magno Dinis Teresa Padrao Marisol Correia Goncalo Atalaia Michelle Silva Teresa Fiúza 2022World Journal of Gastrointestinal Oncology2022,14,7:2
4Photoluminescence emissions of Ca_(1-x)WO_(4):xEu^(3+):Bridging between experiment and DFT calculations显示文摘In this work,the impact of the doping process on the photoluminescence emission of CaWO_(4) as a function of the concentration of Eu^(3+) cation(0.01 mol%,0.02 mol%,0.04 mol%,0.06 mol%,0.08 mol%,and 0.10 mol%) is discussed in detail.Ca_(1-x)WO~4:xEu^(3+) samples were successfully synthesized by a simple coprecipitation method followed by microwave irradiation.The blue shift in the absorption edge confirms the quantum confinement effect and the band gap energy covers the range from 3.91 to 4.18 eV,as the amount of Eu^(3+) cations increases.The experimental results are sustained by first-principles calculations,at the density functional theory level,to decipher the geometry and electronic properties,thereby enabling a more accurate and direct comparison between theory and experiment for the Ca_(1-x)WO_(4):xEu^(3+) structure.Amanda Fernandes Gouveia Marcelo Assis Lara Kelly Ribeiro Aline Estefany Brandao Lima Eduardo de Oliveira Gomes Daniele Souza Yara Gobato Galvao Ieda Lucia Viana Rosa Geraldo Eduardo da Luz Jr Eva Guillamón Elson Longo Juan Andrés Miguel Angel San-Miguel 2022Journal of Rare Earths2022,40,10:1
5Tahynavirus and human infection, China显示文摘LuZ LuXJ Fu S H 2009Emerg Infect Dis2009,15,:1
6Adhesion abilities of dairy Lactobacillus plantarum strains showing an aggregation phenotype显示文摘Tomás García-Cayuela Ahmed M. Korany Irene Bustos Luz P. Gómez de Cadi?anos Teresa Requena Carmen Peláez M. Carmen Martínez-Cuesta 2014Food Research International2014,,:1
7Distribution of polycyclic aromatic hydrocarbons in marine sediments and their potential toxic effects显示文摘Froehner S Maceno M Luz E C D 2010Environmental Monitoring and Assessment2010,168,14:1
8Meeting browsing state-of-the- art review显示文摘Bouamrane M M and Luz S 2007Multimedia Systems2007,12,45:1
9Struc-tural characterization of coagulant Moringa oera Lectin and its effect on hemostatic param- eters显示文摘Luz L A Silva M C Ferreira R S 2013Int J Biol Macromol2013,58,:1
10Feasibility of copper up- take by the yeast Pichia guiUiermondii isolated from sewage sludge显示文摘Maria-Isabel S Luz B Cristina A 2002Research in Microbiology2002,153,:1
11Prognostic sigmificanae of anemia and role of erythropoietin in radiation therapy显示文摘Smaniotto D Luz S Morganti A G 2000Tumori2000,86,1:1
12Morphology and safety of LiO2 显示文摘Jouanneau S MacNeil DD LuZ 2003J ElectrochemSoc2003,150,:1
13On the transport properties in granular or weakl, coupled superconductors显示文摘C A M dos Santos M S da Luz B Ferreira 2003Physica C2003,391,:1
14Hormonal changes throughout maturation and ageing in Pinus pinea显示文摘Ana ElisaValdés Belén Fernández María Luz Centeno 2004Plant Physiology and Biochemistry2004,42,4:1
15Single-source dual-ener- gy computed tomography: use of monoenergetic extrapolation for a reduction of metal artifacts 显示文摘Mangold S Gatidis S Luz O 2014Invest Radiol2014,49,12:1
16Cellulose and cellulignin from sugarcane bagasse reinforced polypropylene composites: Effect of acetylation on mechanical and thermal properties 显示文摘Luz S M Tio I D Rocha G I M 2008Composites Part A: Applied Science and Manufacturing2008,39,9:1
17Improvements in the statistical approach to random Lévy flight searches显示文摘da Luz M G E Buldyrev S V Havlin S 2001Physica A:Statistical Mechanics and Its Applications2001,295,12:1
18Wetting behaviour of silicon nitride ceramics by Ti-Cu alloys 显示文摘Luz A P Ribeiro S 2008Ceramics International2008,34,:1
19Increased ALK Gene Copy Number and Amplification are Frequent in Non-small Cell Lung Cancer显示文摘Marta Salido Lara Pijuan Luz Martínez-Avilés Ana B. Galván Israel Ca?adas Ana Rovira Montserrat Zanui Alejandro Martínez Raquel Longarón Francisco Sole Sergio Serrano Beatriz Bellosillo Murry W. Wynes Joan Albanell Fred R. Hirsch Edurne Arriola 2011Journal of Thoracic Oncology2011,,1:1
20Imatinib mesylate‐induced neutrophilic folliculitis in a teenager显示文摘Maria Teresa García‐Romero Carola Durán‐McKinster Marimar Sáez de Ocariz Daniel Carrasco‐Daza Carolina Palacios‐López Luz Orozco‐Covarrubias Ramón Ruiz‐Maldonado 2012International Journal of Dermatology2012,,12:1
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