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1Feasibility and safety of autologous bone marrow mononuclear cell transplantation in patients with advanced chronic liver disease显示文摘AIM: To evaluate the safety and feasibility of bone marrow cell (BMC) transplantation in patients with chronic liver disease on the waiting list for liver transplantation. METHODS: Ten patients (eight males) with chronic liver disease were enrolled to receive infusion of autologous bone marrow-derived cells. Seven patients were classified as Child-Pugh B and three as Child-Pugh C. Baseline assessment included complete clinical and laboratory evaluation and abdominal MRI. Approximately 50 ml of bone marrow aspirate was prepared by centrifugation in a ficoll-hypaque gradient. At least of 100 millions of mononuclear-enriched BMCs were infused into the hepatic artery using the routine technique for arterial chemoembolization for liver tumors. Patients were followed up for adverse events up to 4 mo. RESULTS: The median age of the patients was 52 years (range 24-70 years). All patients were discharged 48 h after BMC infusion. Two patients complained ofmild pain at the bone marrow needle puncture site. No other complications or specific side effects related to the procedure were observed. Bilirubin levels were lower at 1 (2.19 ± 0.9) and 4 mo (2.10 ± 1.0) after cell transplantation that baseline levels (2.78 ± 1.2). Albumin levels 4 mo after BMC infusion (3.73 ± 0.5) were higher than baseline levels (3.47 ± 0.5). International normalized ratio (INR) decreased from 1.48 (SD = 0.23) to 1.43 (SD = 0.23) one month after cell transplantation. CONCLUSION: BMC infusion into hepatic artery of patients with advanced chronic liver disease is safe and feasible. In addition, a decrease in mean serum bilirubin and INR levels and an increase in albumin levels are observed. Our data warrant further studies in order to evaluate the effect of BMC transplantation in patients with advanced chronic liver disease.Andre Castro lyra Milena Botelho Pereira Soares luiz Flavio Maia da Silva Marcos Fraga Fortes André Goyanna Pinheiro Silva Augusto César de Andrade Mota Sheilla A Oliveira Eduardo lorens Braga Wilson Andrade de Carvalho Bernd Genser Ricardo Ribeiro dos Santos luiz Guilherme Costa lyra 2007World Journal of Gastroenterology2007,13,7:21
2Diagnosis of pancreatic tumors by endoscopic ultrasound-guided fine-needle aspiration显示文摘AIM: To evaluate the diagnostic accuracy of endoscopic ultrasound-guided fi ne-needle aspiration (EUS-FNA) for pancreatic solid tumors larger or smaller than 3 cm, and cystic lesions. METHODS: From January/1997 to December/2006, 611 patients with pancreatic tumors were subjected to EUS-FNA. The fi nal diagnosis was obtained either by surgery (356 cases) or after a mean clinical follow-up of 11.8 mo in the remaining patients. RESULTS: There were 405 solid tumors, 189 cystic lesions and 17 mixed. Pancreatic specimens for cytological assessment were successfully obtained by EUS-FNA in 595 (97.4/) cases. There were 352 (57.6/) malignancies and 259 (42.4/) benign tumors. Among the malignancies, pancreatic adenocarcinomas accounted for 67/ of the lesions. Overall, the sensitivity, specifi city, positive and negative predictive values, and accuracy of EUS-FNA were, respectively, 78.4/, 99.2/, 99.3/, 77.2/ and 87.2/. Specif ically for solid tumors, the same parameters for neoplasms larger and smaller than 3 cm were, respectively, 78.8/ vs 82.4/, 100/ vs 98.4/, 100/ vs 99/, 54.8/ vs 74.1/ and 83.1/ vs 87.8/. For cystic lesions, the values were, respectively, 72.2/, 99.3/, 97.5/, 91/ and 92.2/. CONCLUSION: EUS-FNA can be used to sample pancreatic tumors in most patients. Even though the negative predictive value is inadequate for large solid tumors, the results are rather good for small solid tumors, especially concerning the sensitivity, negative predictive value and diagnostic accuracy. Among all pancreatic lesions, EUS-FNA for cystic lesions canreveal the best negative predictive value and diagnostic accuracy, both higher than 90/.José Celso Ardengh César Vivian Lopes Luiz Felipe Pereira de Lima Juliano Rodrigues de Oliveira Filadélfi o Venco Giulio Cesare Santo José Luiz Pimenta Módena 2007World Journal of Gastroenterology2007,13,22:17
3Phase Ⅰ of cardiac rehabilitation:A new challenge for evidence based physiotherapy显示文摘Cardiac rehabilitation protocols applied during the inhospital phase(phaseⅠ)are subjective and their results are contested when evaluated considering what should be the three basic principles of exercise prescription:specificity,overload and reversibility.In this review,we focus on the problems associated with the models of exercise prescription applied at this early stage in-hospital and adopted today,especially the lack of clinical studies demonstrating its effectiveness.Moreover,we present the concept of'periodization'as a useful tool in the search for better results.Rafael Michel de Macedo JoséRocha Faria-Neto Costantino Ortiz Costantini Dayane Casali Andrea Pires Muller Costantino Roberto Costantini Katherine Athayde Teixeira de Carvalho Luiz César Guarita-Souza 2011World Journal of Cardiology2011,3,7:11
4Benefit of stem cells and skeletal myoblast cells in dilated cardiomyopathies显示文摘Although some authors suggest that there is mitotic division in the heart,most cardiomyocytes do not have the capacity to regenerate after myocardial infarction and when this occurs there is a deterioration of contractile function,and if the area of infarction is extensive ventricular remodeling may occur,leading to the development of heart failure.Cell transplantation into the myocardium with the goal of recovery of cardiac function has been extensively studied in recent years. The effects of cell therapy are based directly on the cell type used and the type of cardiac pathology.For myocardial ischemia in the hibernating myocardium, bone marrow cells have functional benefits,however these results in transmural fibrosis are not evident. In these cases there is a benefit of implantation with skeletal myoblasts,for treating the underlying cause of disease,the loss of cell contractility.Luiz César Guarita-Souza Júlio César Francisco Rossana Simeoni Jose Rocha Faria-Neto Katherine Athayde Teixeira de Carvalho 2011World Journal of Cardiology2011,3,3:4
5Glutamine and glutamate supplementation raise milk glutamine concentrations in lactating gilts显示文摘Glutamine is the most abundant amino acid in milk, and lactation is associated with increased glutamine utilization both for milk synthesis and as a fuel for the enlarged small intestine. A number of recent studies have indicated that lactation is accompanied by a mild catabolic state in which skeletal muscle proteins are degraded to provide amino acids that are used to synthesize additional glutamine. In this study we tested the hypothesis that supplemental L-glutamine or the commercially available glutamine supplement Aminogut (2.5% by weight mixed into daily feed) provided to gilts from 30 days prior to parturition until 21 days post-parturition would prevent a decrease in skeletal muscle glutamine while increasing the glutamine content of the milk. Muscle glutamine content decreased (P < 0.05) in control animals during lactation but this was prevented by supplementation with either L-glutamine or Aminogut. In this study, neither lactation nor supplementation had any effect on plasma glutamine or glutamate content. Free glutamine, and the total glutamine plus glutamate concentrations in milk from the control and the Aminogut group rose (P < 0.05) during the first 7 days of lactation, with milk concentrations in the L-glutamine supplemented group showing a similar trend (P = 0.053). Milk glutamate remained constant between day 7 and 21 of lactation in the control and L-glutamine supplemented groups, but by day 21 of lactation the free glutamine, glutamate, and glutamine plus glutamate concentrations in milk from Aminogut-treated gilts were higher than those of control gilts. Thus dietary glutamine supplementation can alleviate the fall in intramuscular glutamine content during lactation in gilts, and may alleviate some of the catabolic effects of lactation. Furthermore, the increased milk glutamine content in the supplemented gilts may provide optimum nutrition for piglet development.Helena Emilia CCC Manso Helio C Manso Filho Luiz E de Carvalho Marianne Kutschenko Eduardo T Nogueira Malcolm Watford 2012Journal of Animal Science and Biotechnology2012,3,1:3
6Potential role of Limosilactobacillus fermentum as a probiotic with anti-diabetic properties: A review显示文摘Oxidative stress,inflammation,and gut microbiota impairments have been implicated in the development and maintenance of diabetes mellitus.Strategies capable of recovering the community of commensal gut microbiota and controlling diabetes mellitus have increased in recent years.Some lactobacilli strains have an antioxidant and anti-inflammatory system capable of protecting against oxidative stress,inflammation,and diabetes mellitus.Experimental studies and some clinical trials have demonstrated that Limosilactobacillus fermentum strains can beneficially modulate the host antioxidant and anti-inflammatory system,resulting in the amelioration of glucose homeostasis in diabetic conditions.This review presents and discusses the currently available studies on the identification of Limosilactobacillus fermentum strains with anti-diabetic properties,their sources,range of dosage,and the intervention time in experiments with animals and clinical trials.This review strives to serve as a relevant and well-cataloged reference of Limosilactobacillus fermentum strains capable of inducing anti-diabetic effects and promoting health benefits.Diego Cabral Lacerda Paulo César Trindade da Costa Paula Brielle Pontes Lucas Alves Carneiro dos Santos JoséPatrocínio Ribeiro Cruz Neto Cristiane Cosmo Silva Luis Vanessa Polyana de Sousa Brito JoséLuiz de Brito Alves 2022World Journal of Diabetes2022,13,9:3
7Crohn's disease environmental factors in the developing world: A case-control study in a statewide catchment area in Brazil显示文摘AIM To identify environmental risk factors associated with the development of Crohn's disease(CD) in order to reassess the hygiene hypothesis.METHODS A hospital-based, case-control study was carried out with CD patients(n = 145) and controls(n = 163)representing a socioeconomically diverse statewide catchment area in Brazil. Controls were recruited from caregivers of patients seen in different outpatient clinics at the same hospital. A multi-item survey with 94 questions regarding family history of CD, perinatal and childhood circumstances, living conditions, tobacco use and familial socioeconomic status was carried out by interviewers. RESULTS On the univariate analysis, predictive variables for CD included being male, under age of 40, a high education level, urban dweller, smaller family size, exposure to enteric pathogens and user of treated water(P < 0.005). On the multivariate analysis, variables significantly associated with CD were male gender(OR = 2.09), under age 40(OR = 3.10), white(OR = 2.32), from a small family in childhood(OR = 2.34) and adulthood(OR = 3.02), absence of viral infections in childhood(OR = 2.23), exposure to enteric pathogens(OR = 2.41), having had an appendectomy(OR = 2.47) and prior or current smoker(OR = 2.83/1.12). CONCLUSION Most variables supporting the 'hygiene hypothesis' are associated with the development of CD but are not independent predictors of the diagnosis.Valéria Cristina Loureiro Salgado Ronir Raggio Luiz Neio Boechat Bianca C Schorr Isabella S Leao Tiago Nunes Cyrla Zaltman 2017World Journal of Gastroenterology2017,23,30:2
8FeNb在钢液中的溶化行为及在钢包精炼过程中提高Nb收得率的最佳工艺显示文摘阐述了标准铌铁(FeNb)的微观组织特性及其溶入钢液中的研究结果。在实验室的感应炉中进行了不同温度下的非连续试验,分析了固相FeNb与钢液凝固层界面的微观组织,并与原始FeNb粒子的微观组织进行了对比。这些试验研究结果可以阐释FeNb的溶解机制和它在不同炼钢温度下的融入动力学条件。标准FeNb在钢水中溶解的试验结果证实FeNb颗粒的溶解速率高于有关文献中报告的结果,它们认为FeNb粒子的熔化温度高(>1600℃),所以在其模型中假定FeNb的溶解仅是通过固相粒子的扩散实现。本项工作得到的试验证据为标准FeNb的溶解机理提供了一种新的说法:在1500~1510℃受其共晶区的熔化行为控制,在1530~1575℃温度范围内则由初始板条相的熔化行为所主导,也就是说,均低于1600℃左右的炼钢温度。根据这些研究结果和炼钢厂已有的生产经验,对于微合金化钢在二次精炼阶段加入FeNb推荐了最优的工艺。Edmundo Burgos Cruz Daniel Pallos Fridman Marcelo C Carboni Rogério Contato Guimares Marcos A Stuart Nogueira Ferdinando Luiz Cavallante 王厚昕 2010世界钢铁2010,,6:2
9Structural phase relations in perovskite-structured BiFeO_(3)-based multiferroic compounds显示文摘In this review,the state of the art in understanding the structural phase relations in perovskite-structured BiFeO_(3)-based polycrystalline solid solutions is presented and discussed.Issues about the close relation between the structural phase and overall physical properties of the reviewed systems are pointed out and discussed.It is shown that,by adjusting the structural symmetric arrangement,the ferroelectric and magnetic properties of BiFeO_(3)-based polycrystalline solid solutions can be tuned to find specific multifunctional applications.However,an intrinsic mechanism linking structural arrangement and physical properties cannot be identified,revealing that this subject still deserves further discussion and investigation.Valdirlei Fernandes FREITAS Gustavo Sanguino DIAS Otávio Algusto PROTZEK Diogo Zampieri MONTANHER Igor Barbosa CATELLANI Daniel Matos SILVA Luiz Fernando CÓTICA Ivair Aparecido dos SANTOS 2013Journal of Advanced Ceramics2013,2,2:2
10Lead Recovery from a Typical Brazilian Sludge of Exhausted Lead-acid Batteries Using an Electro-hydrometallurgical Process显示文摘Luiz C Ferracin Abel E Chacon-Sanhueza Rogerio A 2002Hydrometallurgy2002,65,42:1
11Comparative study of variable size perturbation and observation maximum power point trackers for PV systems显示文摘Neil S D Luiz A C Liu Xuejun 2010Eleclric Power Systems Research2010,,80:1
12An improved perturbation and okservation maximum power point tracking algorithm for PV arrays显示文摘Liu Xuejun Luiz A C Lopes 2004IEEE Power Electronics Specialist Con- ference2004,,3:1
13A new voltammetric method for the simultaneous determination of the antioxidants TBHQ and BHA in biodiesel using multi-walled carbon nanotube screen-printed electrodes显示文摘Ricardo P C Adriana G F A Luiz H V 2013Fuel2013,105,:1
14Structural evolution of Eucalyptus tar pitch-based carbons during carbonization显示文摘MARCOS J P VANYA M D NELCY D S CHOYU O SATIKA O LUIZ C P 2005Biomass Bioenergy2005,28,1:1
15Aspect weaving strategies 显示文摘Eduardo K P Luiz C Z 2003Journal of Universal Computer Science2003,9,8:1
16Esterification of oleic acid with ethanol by 12- tungstophosphoric acid supported on zirconia显示文摘Claudinei F Olivcira Luiz M Dezaneti Fillipe A C Garci- a 2010Applied Catalysis A : General2010,372,2:1
17Solubility of carbon dioxide in water and hexadecane: Experimental measurement and thermodynamic modeling显示文摘Eduardo Pereira Siqueira Campos C Gomes D'Amato Villardi H Luiz PeIlegrini Pessoa F 2009Journal of Chemical & Engineering Data2009,54,10:1
18Activated carbon liron oxide magnetic composites for the adsorption of contaminants in water 显示文摘Oliveira Luiz C A Rios Rachel V R A Jos D 2002Carbon2002,40,:1
19Aspectweaving strategies显示文摘Eduardo K P Luiz C Z 2003Jour-nal of Universal Computer Science2003,,8:1
20Incremental Value of Perfusion over Wall‐Motion Abnormalities with the Use of Dobutamine–Atropine Stress Myocardial Contrast Echocardiography and Magnetic Resonance Imaging for Detecting Coronary Artery Disease显示文摘Sandra Nivea dos Reis Saraiva Falc?o Carlos Eduardo Rochitte Wilson Mathias Junior Luiz Quaglia Pedro Alves Lemos Jo?o César Nunes Sbano José Antonio Franchini Ramires Roberto Kalil Filho Jeane Mike Tsutsui 2012Echocardiography2012,,:1
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