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Can gadoxetic acid–enhanced magnetic resonance imaging be used to avoid liver biopsy in patients with nonalcoholic fatty liver disease?

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World Journal of Hepatology 2020年第9期12卷 661-671页

作者： Viviane Brandão Amorim Daniella Braz Parente Fernando Fernandes Paiva Jaime Araújo oliveira Neto Amanda Almeida Miranda Cláudia Cravo Moreira Flávia Ferreira Fernandes Carlos Frederico FerreiraCampos Nathalie Carvalho leite Renata de Mello Perez Rosana Souza Rodrigues Research Department D’Or Institute for Research and EducationRio de Janeiro 22281Brazil Radiology Department Brazilian National Cancer InstituteRio de Janeiro 20230-130Brazil Radiology Department Fleury Group S.A.Rio de Janeiro 20765-000Brazil Radiology Department Hospital Universitário Clementino Fraga FilhoFederal University of Rio de JaneiroRio de Janeiro 21941-590Brazil São Carlos Institute of Physics University of São PauloSão Carlos 13560-970Brazil Radiology Department Quinta D'Or HospitalRio de Janeiro 20941-150Brazil Radiology Department Centro de Diagnóstico Médico do MaranhãoMaranhão 65074-441Brazil Department of Clinical Medicine Hospital Universitário Clementino Fraga FilhoFederal University of Rio de JaneiroRio de Janeiro 21941-590Brazil Gastroenterology and Hepatology Department Hospital Federal de BonsucessoRio de Janeiro 21041-030Brazil Department of Pathology and Laboratories University of the State of Rio de JaneiroRio de Janeiro 20551-030Brazil Internal Medicine Department Hospital Universitário Clementino Fraga FilhoFederal University of Rio de JaneiroRio de Janeiro 21941-590Brazil Gastroenterology Department Hospital Universitário Pedro ErnestoUniversity of the State of Rio de JaneiroRio de Janeiro 20551-030Brazil

BACKGROUND Nonalcoholic fatty liver disease(NAFLD)is a major cause of liver disease *** diagnosis of nonalcoholic steatohepatitis(NASH),the most severe form of NAFLD,is crucial and has prognostic and therapeutic ***,currently this diagnosis is based on liver biopsy and has several *** To evaluate the performance of gadoxetic acid–enhanced magnetic resonance imaging(GA-MRI)in differentiating isolated steatosis from NASH in patients with *** In this prospective study,56 patients with NAFLD(18 with isolated steatosis and 38 with NASH)underwent *** contrast enhancement index(CEI)was calculated as the rate of increase of the liver-to-muscle signal intensity ratio from before and 20 min after intravenous GA ***-group differences in mean CEI were examined using Student's t *** area under the receiver operator characteristic curve and the diagnostic performance of gadoxetic acid–enhanced magnetic resonance imaging were *** The mean CEI for all subjects was 1.82±*** mean CEI was significantly lower in patients with NASH than in those with isolated steatosis(P=0.008).Two CEI cut-off points were used:2.00(89%sensitivity)to characterize isolated *** values between 1.66 and 2.00 indicated liver biopsy,and the procedure could be avoided in 40%of patients with *** GA-MRI is an effective noninvasive method that may be useful for the differentiation of NASH from isolated steatosis,and could help to avoid liver biopsy in patients with NAFLD.

关键词： Fatty liver Nonalcoholic fatty liver disease Nonalcoholic steatohepatitis Gadoxetic

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What we have learned from urinary bladder cancer models

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Journal of Cancer Metastasis and Treatment 2016年第1期2卷 51-58页

作者： Carina Bernardo Céu Costa Carlos Palmeira Rosário Pinto-leite Paula oliveira Rui Freitas Francisco Amado Lúcio L.Santos Experimental Pathology and Therapeutics Group-Research Center Portuguese Oncology Institute-Porto(IPO-Porto)Rua Dr.António Bernardino de Almeida4200-072 PortoPortugal Mass Spectrometry Group QOPNADepartment of ChemistryUniversity of AveiroCampus Universitário de Santiago3810-193 AveiroPortugal Department of Immunology Portuguese Oncology Institute-Porto(IPO-Porto)Rua Dr.António Bernardino de Almeida4200-072 PortoPortugal School of Health Sciences Fernando Pessoa University4249-004 PortoPortugal Genetic Service Cytogenetic LaboratoryHospital Center of Trás-os-Montes e Alto Douro5000-508 Vila RealPortugal Department of Veterinary Sciences CITABUniversity of Trás-os-Montes e Alto Douro5001-801 Vila RealPortugal Department of Urology Portuguese Oncology Institute-Porto(IPO-Porto)Rua Dr.António Bernardino de Almeida4200-072 PortoPortugal Department of Surgical Oncology Portuguese Oncology Institute-Porto(IPO-Porto)Rua Dr.António Bernardino de Almeida4200-072 PortoPortugal

Urinary bladder cancer(UBC)is a heterogeneous disease with highly variable clinical outcomes and responses to *** some advances in the molecular understanding of UBC,this knowledge still has not been translated to the clinic in terms of improvements in the prognosis and treatment of *** urinary bladder tumor models representative of the human disease in terms of histology and behavior are needed to study factors involved in tumor initiation,progression and ***,accurate model systems would facilitate identification of new therapeutic targets and predictive markers that could lead to optimization of existing therapies and development of new *** established cancer cell lines derived from human urinary bladder tumors representing different grades and stages have been used as experimental models for UBC *** cell lines reflect some of the genetic and morphologic alterations observed in human urothelial carcinoma and serve as simplified models to study the behavior of cancer cells in ***,their translational potential is limited due to the artificial conditions,in which the cells are maintained,grown and *** models offer a more complex and realistic model for the establishment,development,and progression of tumors as well as to evaluate new therapeutic *** the years,the authors'group has worked with several UBC cell lines,established and characterized chemically induced UBC models,and patient-derived xenografts *** this study,the authors will provide a summary of the UBC models developed by their group,analyze their translational potential and weaknesses,and define areas that remain to be explored.

关键词： Animal models cell lines tumor behavior urothelial bladder cancer xenografts

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Is Pulmonary Auscultation Alone Sufficient for Clinical Practice?

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Open Journal of Respiratory Diseases 2020年第3期10卷 49-58页

作者： Waldo Luis leite Dias de Mattos João Vitor Pinotti Dallasen ana Gabriela Goularte Juchem Douglas da Silva Pinos3, Fabiana Jaeger Federal University of Health Sciences of Porto Alegre (UFCSPA) Porto Alegre Brazil Santa Casa de Misericórdia Hospital Porto Alegre Brazil Nossa Senhora da Conceiç ã o Hospital Porto Alegre Brazil

Objective: The clinical examination is the basis for the diagnosis and rational choice of complementary tests. The aim of the study was to evaluate the performance of auscultation of the chest for screening of disease and for predicting the presence of abnormalities in the other domains of the chest examination. Methods: Patients with COPD, atelectasis, pleural effusion, pneumonia and controls were evaluated by two examiners in the absence of any clinical information, initially only with pulmonary auscultation, and then in the other domains of chest examination. Results: 192 physical examinations were performed in 104 patients. An abnormal pulmonary auscultation had a sensitivity of 85.2%, positive predictive value (PPV) of 84.1%, positive likelihood reason (LR) of 1.53 (95% CI;1.16 to 2.01) and negative LR of 0.33 (95% CI;0.2 to 0.56) to identify the presence of any disease, and also a positive LR of 2.23 (95% CI;1.02 to 4.9) and a negative LR of 0.3 (95% CI;0.17 to 0.51) to predict additional abnormalities. A normal auscultation showed low accuracy to identify healthy individuals, with sensitivity, specificity, NPV and PPV, respectively, of 44%, 43%, 41% and 46%. The agreement between the examiners considering normal versus abnormal findings showed kappa = 0.76 for any changes in the physical examination present (p Conclusions: Auscultation of the chest alone, may not be a sufficient strategy to track diseases or establish whether continuity of the examination is necessary or not.

关键词： Physical Examination Pulmonary Auscultation Clinical Diagnosis

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Influence of Saliva and Mucin on the Adhesion of <i>Candida</i>Oral Clinical Isolates

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Journal of Encapsulation and Adsorption Sciences 2015年第4期5卷 217-227页

作者： Catarina L. Seabra Cláudia M. Botelho ana C. N. oliveira Mariana Henriques Instituto de investigação e Inovação em Saúde University of Porto Porto Portugal Instituto de Engenharia Biomédica University of Porto Porto Portugal Instituto de Patologia e Imunologia Molecular da Universidade do Porto University of Porto Porto Portugal Instituto de Ciências Biomédicas Abel Salazar University of Porto Porto Portugal Centre of Biological Engineering (CEB) Laboratório de Investiga&ccedil&atildeo em Biofilmes Rosário Oliveira University of Minho Braga Portugal Centre of Physics (CFUM) Department of Physics University of Minho Braga Portugal Centre of Molecular and Environmental Biology (CBMA) Department of Biology University of Minho Braga Portugal

Objectives: This research work intends to clarify the role of artificial saliva, in particularly the role of mucin, a salivary protein, on the surface properties and adhesion ability of Candida spp. oral clinical isolates to abiotic surfaces. Methods: Four oral clinical isolates of Candida spp. were used: two Candida albicans strains (AC;AM) and two Candida parapsilosis strains (AD;AM2). The strains were isolated from patients using oral prosthesis. The microorganisms were cultured in the absence or presence of mucin and artificial saliva, and their adhesion to an abiotic surface (coated with mucin and artificial saliva) was evaluated. Results: The presence of mucin per se onto the abiotic surface decreased the adhesion of all strains, although the combination of mucin with artificial saliva had reduced this effect. No direct correlation between adhesion and the surface free energies of adhesion of the microorganisms was found. Significance: Candida spp. were human commensal microorganisms that became pathogenic when the host immune defenses were compromised. Medical devices were colonized by Candida spp. particularly, oral prostheses, which might lead to the degradation of the prostheses and systemic infections. The salivary secretions that constantly cover the oral cavity influenced Candida spp. adhesion process. Therefore, it was important to understand the interactions between Candida spp., salivary proteins and the characteristic of oral prosthesis when developing materials for oral prostheses.

关键词： Candida Artificial Saliva Mucin Oral Adhesion Surface Properties

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Assessing Cleaner Energy Alternatives for Bus Transit in Rio de Janeiro:A Life Cycle Inventory analysis

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Journal of Environmental Protection 2015年第11期6卷 1197-1218页

作者： Marcio de Almeida D’Agosto Cintia Machado de oliveira Fabiana do Couto Assumpcao ana Carolina Peixoto Deveza Programa de Engenharia de Transportes Instituto Alberto Luiz Coimbra de Pos-Graduacao e Pesquisa em Engenharia(COPPE)Universidade Federal do Rio de JaneiroRio de JaneiroBrazil Centro Federal de Educacao Tecnologica Celso Suckow da Fonseca Engenharia Industrial MecanicaUnedItaguaiBrazil

From 2003 to 2009 in Brazilian municipalities of over 60,000 inhabitants, buses accounted for more than 25% of urban trips. This trend is not expected to change in the medium term. Worldwide, buses rely on petroleum diesel as fuel. In Brazil, alternative fuels such as biodiesel, natural gas and ethanol are available and the choice among them should depend on the assessment of the entire life cycle of such fuels. This paper uses a Life Cycle Inventory, which is essential to the implementation of a Life Cycle Assessment, to assess six energy alternatives: petroleum diesel, biodiesel, petroleum diesel with 5% of biodiesel, compressed natural gas, additivated hydrous ethanol and dual-fuel system composed by petroleum diesel with 5% of biodiesel and compressed natural gas. In saving total energy consumption, pure petroleum diesel or mixed with 5% biodiesel and dual-fuel systems stand out, in that order. If renewable energy use and net carbon dioxide emissions reduction are the goals, ethanol and biodiesel should be given preference. The addition of 5% of biodiesel in petroleum diesel increases the share of renewable energy in the supply chain of petroleum diesel by 47.5% with an increase of 0.58% in total energy consumption and a reduction of 3.8% in net CO2 emissions during the life cycle. In the case of biodiesel, the addition of 5% of biodiesel in petroleum diesel increases the share of renewable energy in the supply chain by 51.15% with an increase of 0.03% in the total energy consumption and a decrease of 7% in net CO2 emissions in the life cycle. The use of 5% of biodiesel in petroleum diesel does not significantly affect the use of renewable energy (+0.69%) or total energy consumption (+0.04%) in ethanol supply chain, which already shows a great use of renewable energy input. However, a decrease of 9.29% in the net CO2 emissions in the supply chain occurs, which reaches 5.28% in the life cycle.

关键词： Renewable Energy Total Energy Public Transportation Biofuels Life Cycle

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Environmental Exposure Associated with Oxidative Stress Biomarkers in Children and Adolescents Residents in Brazilian Western Amazon

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Journal of Environmental Protection 2018年第4期9卷 347-367页

作者： Beatriz Fatima Alves de oliveira Leandro Vargas Barreto de Carvalho Dennys de Souza Mourao Rita de Cassia oliveira da Costa Mattos Hermano Albuquerque de Castro Paulo Artaxo Washington leite Junger Sandra Hacon National School of Public Health Oswaldo Cruz FoundationRio de JaneiroBrazil Center for Studies of Worker’s Health and Human Ecology Oswaldo Cruz FoundationRio de JaneiroBrazil Institute of Physics University of Sao PauloSao PauloBrazil Departament of Epidemiology/Social Medicine Institute State University of Rio de JaneiroRio de JaneiroBrazil

Oxidative stress is a biological process that occurs in response to an imbalance between prooxidant and antioxidant substances and has been described in the pathophysiology of more than 200 clinical disorders. In this study, we evaluate the relationship between genetic, demographic, social, environmental, and health factors and redox imbalance biomarkers in a group of children and adolescents environmentally exposed to atmospheric pollutants and mercury in the Brazilian Western Amazon. This is a cross-sectional study of the relationship between demographic, genetic, and socioenvironmental factors and serum concentrations of redox imbalance biomarkers (thiol groups, malondialdehyde, and glutathione S-transferase [GST]) in children and adolescents living in the municipality of Porto Velho, Rond?nia. The investigated factors were hierarchically organized into groups of variables and their relationship with redox imbalance biomarkers was estimated by a multiple linear regression model. Children and adolescents with asthma, with C-reactive protein values, with the polymorphic variant GSTP1, and exposed to indoor air pollution presented lower thiol serum concentrations when compared to those categorized in their respective reference groups. GST activity and malondialdehyde serum concentrations were positively related to weekly fish consumption and exposure to PM2.5. This study showed that enzymatic GST activity and malondialdehyde serum concentrations are positively associated with environmental factors, especially air pollution (β = 8.64 U/L for GST and β = 0.244 μmol/L for MDA in high exposure group;p-value < 0.01);while serum thiol concentrations presented an inversely proportional relationship with markers of general health status, such asthma (median: 0.45 mmol/L vs. 0.48 mmol/L;p-value < 0.05), acute inflammation (β = -0.25 mmol/L;p-value < 0.01), and positively with genetic factor (β = 0.12 mmol/L for Val/Val;p-value < 0.05).

关键词： Redox Imbalance Glutathione S-Transferase Thiol Groups Malondialdehyde Brazilian Amazon

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Each Epiphyte on Its Branch: A Comparative Study between Different Phorophytes

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Agricultural Sciences 2023年第5期14卷 636-644页

作者： Johnatan Jair De Paula Marchiori Vinicius De Souza oliveira Eduarda Carriço ana Clara Bayer Bernabé Anderson Mathias Holtz Ronilda Lana Aguiar ana Beatriz Mamedes Piffer Gilcéa Teixeira Fontana Boone Lusiane De Sousa Ferreira Bruna De oliveira Magnani Federal University Rural of Rio de Janeiro Seropédica Brazil Center for Agricultural Sciences and Engineering Federal University of Espírito Santo Alegre Brazil Federal Institute of Espírito Santo Campus Itapina Colatina Brazil State University Paulista “Júlio de Mesquita Filho” Botucatu Brazil

Epiphytes are plants that use the mechanical support provided by a host tree, called phorophytes, without emitting haustorial structures. Constituting an important component of the flora, playing an important role in the maintenance of ecosystems, such as water and nutrient cycling, in addition to providing resources, sometimes unique, such as food and shelter, for the canopy fauna. However, the epiphytic flora may show high beta diversity, even when compared with different phorophytes, possibly as a response to the dendromorphological characteristics of the phorophyte. Thus, this work aims to: 1) compare whether the species richness of epiphytes differs in trees with different morphological characteristics, and 2) compare species composition among three tree species. For this, 10 individuals of three tree species were selected: Guaria guidonia, Ficus sp., and Roystonea oleracea. In each individual, the number of species (richness) of vascular epiphytes was recorded and obtained from the species composition. To test differences in richness values between the three trees, we used analysis of variance (ANOVA) followed by Tukey’s test. To understand whether the epiphyte community formed separate groups according to the tree species used, we used the available non-metric multidimensional scaling method (NMDS). Thirty-four species of epiphytes were found in the 30 phorophytes surveyed. The three tree species showed significantly different richness, with the highest found in Guarea guidonea and the lowest in Roystonea oleraceae. The NMDS showed that epiphytes group the three tree species into distinct groups, although Ficus sp individuals present a transitional community between the two other species. Thus, the results suggest that the differences in the richness and composition of the epiphytic flora of the different phorophytes are influenced by their distinct morphological characteristics.

关键词： Atlantic Forest Ecological Reserve Tree Species

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Effects of quantitative feed restriction and sex on carcass traits,meat quality and meat lipid profile of Morada Nova lambs

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Journal of Animal Science and Biotechnology 2017年第4期8卷 992-1003页

作者： Thiago L.A.C.de Araújo Elzania S.Pereira Ivone Y.Mizubuti ana C.N.Campos Marília W.F.Pereira Eduardo L.Heinzen Hilton C.R.Magalhaes Leilson R.Bezerra Luciano P da Silva Ronaldo L.oliveira Department of Animal Science Federal University of CearaFortaleza 60356001CearaBrazil Department of Animal Science State University of LondrinaLondrina 86051990ParanáBrazil Laboratory of Sensory analysis Agency for Agricultural Research(EMBRAPA-Tropical Agroindustry)Fortaleza 60511110CearáBrazil Department of Animal Science Campus Professora Cinobelina ElvasFederal University of PiauíBom Jesus 64900000PiauiBrazil Department of Animal Science School of Veterinary Medicine and Animal Science/Federal University of BahiaSalvador CityBahia State 40.170-110Brazil

Background: An experiment was conducted to evaluate the effects of feed restriction(FR) and sex on the quantitative and qualitative carcass traits of Morada Nova lambs. Thirty-five animals with an initial body weight of 14.5 ± 0.89 kg and age of 120 d were used in a completely randomized study with a 3 × 3 factorial scheme consisting of three sexes(11 entire males, 12 castrated males and 12 females) and three levels of feeding(ad libitum – AL and 30% and 60% FR).Results: Entire males presented greater hot and cold carcass weights(P 0.05) concentrations, and the concentrations of palmitic acid, palmitoleic acid, stearic acid, oleic acid and conjugated linoleic acid were higher(P < 0.05) than those of animals with 60% FR. The meat of females had a higher ω6/ω3 ratio and lower h/H ratio, and females had greater levels of feeding. The meat of animals on the 60% FR diet had a greater ω6/ω3 ratio, lower h/H ratio and lower concentration of desirable fatty acids in addition to a greater atherogenicity index(AI) and thrombogenicity index(TI).Conclusion: Lambs of different sexes had carcasses with different quantitative traits without total influence on the chemical and physical meat characteristics. The lipid profile of the meat was less favorable to consumer health when the animals were female or submitted to 60% feed restriction.

关键词： Dietary restriction Fatty acid Hair sheep Lean meat Semi-arid condition

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Reduced paraoxonase 1 activities may explain the comorbidities between temporal lobe epilepsy and depression,anxiety and psychosis

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World Journal of Psychiatry 2022年第2期12卷 308-322页

作者： ana Paula Michelin Michael H J Maes Thitiporn Supasitthumrong Chusak Limotai Andressa Keiko Matsumoto Laura de oliveira Semeão João Victor de Lima Pedrão Estefânia Gastaldello Moreira Buranee Kanchanatawan Décio Sabbatini Barbosa Health Sciences Center State University of LondrinaLondrina 86038-440Brazil Department of Psychiatry Faculty of MedicineChulalongkorn UniversityBangkok 10330Thailand Department of Psychiatry Medical University of PlovdivPlovdiv 4004Bulgaria IMPACT Strategic Research Center Deakin UniversityGeelong 3220Australia Chulalongkorn Comprehensive Epilepsy Center of Excellence King Chulalongkorn Memorial HospitalThe Thai Red Cross SocietyBangkok 10330Thailand Division of Neurology Department of MedicineFaculty of MedicineChulalongkorn UniversityBangkok 10330Thailand

BACKGROUND Temporal lobe epilepsy(TLE)is the most common focal epilepsy subtype in adults and is frequently accompanied by depression,anxiety and *** in total paraoxonase 1(PON1)status may occur in TLE and these psychiatric *** To examine PON1 status,namely Q192R PON1 genotypes and PON1 enzymatic activities,in *** We recruited 40 normal controls and 104 TLE patients,27 without comorbidities and 77 with comorbidities including mood disorders(n=25),anxiety disorders(n=27)and psychosis(n=25).RESULTS Four-(chloromethyl)phenyl acetate hydrolysis(CMPAase)and arylesterase activities were significantly lower in TLE and mesial temporal sclerosis(MTS)with and without psychiatric comorbidities than those in normal *** areas under the receiver operating characteristic curve of CMPAase were 0.893(0.037)for TLE and 0.895(±0.037)for *** least squares path analysis showed that there were specific indirect effects of PON1 genotype on TLE severity(P<0.0001)and psychopathology(P<0.0001),which were both mediated by lowered CMPAase activity,while arylesterase activity was not *** severity of TLE was significantly associated with psychopathology ***,PON1 CMPAase activity was inversely associated with Mini Mental State Examination *** The severity of TLE and comorbidities are to a large extent explained by reduced PON1 enzyme activities and by effects of the Q192R genotype,which are mediated by reduced CMPAase *** PON1 status plays a key role in the pathophysiology of TLE,MTS and psychiatric comorbidities by increasing the risk of oxidative ***1 enzyme activities are new drug targets in TLE to treat seizure frequency and psychiatric comorbidities.

关键词： Antioxidants Oxidative stress Neuroimmune Major depression Mood disorders Affective disorders

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Deformation analysis Due to Early Loading of Concrete Buildings

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Journal of Civil Engineering and Architecture 2016年第6期10卷 690-695页

作者： Romildo Alves Berenguer Fernando Artur Nogueira Silva Joao Luiz de Melo Ramos Fabio Cameiro Lourenco Pryscylla Femanda Silva Chaves ana Cecilia Ferreira leite Department of Civil Engineering Catholic University of Pernambuco Recife 51110-200 Brazil

The building industry has experienced in recent years a strong growth in demand in general and in the case of reinforced concrete buildings this increase has been more marked. This fact has also contributed to accelerate all stages of the production process of these constructions with more pronounced effects on the methodologies used in the constructive steps that influence directly the structural design of the building. Structures loaded at ever earlier ages, in which the strength and deformation properties of materials are not yet sufficiently mature. It is a variable that needs to be taken into account already in the design phase so that the concrete structure behaves within acceptable level of reliability taking into account design code recommendations for service life. To understand the importance of constructive effects and to assess its magnitude in the execution of reinforced concrete buildings, this paper presents result from nonlinear analyses using finite element method adopting an approach commonly referred as staged construction applied to a typical building found in the practice. The effects of creep and shrinkage were considered and the results obtained demonstrate that the strains due to constructive effects can, in certain cases, assume representative values which, if ignored, can lead to important pathologies in the building.

关键词： Reinforced concrete buildings constructive effects staged construction creep shrinkage.

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