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| 1 | Liver transplantation and alcoholic liver disease:History,controversies,and considerations显示文摘Alcohol consumption accounts for 3.8% of annual global mortality worldwide, and the majority of these deaths are due to alcoholic liver disease(ALD), mainly alcoholic cirrhosis. ALD is one of the most common indications for liver transplantation(LT). However, it remains a complicated topic on both medical and ethical grounds, as it is seen by many as a 'self-inflicted disease'. One of the strongest ethical arguments against LT for ALD is the probability of relapse. However, ALD remains a common indication for LT worldwide. For a patient to be placed on an LT waiting list, 6 mo of abstinence must have been achieved for most LT centers. However, this '6-mo rule' is an arbitrary threshold and has never been shown to affect survival, sobriety, or other outcomes. Recent studies have shown similar survival rates among individuals who undergo LT for ALD and those who undergo LT for other chronic causes of end-stage liver disease. There are specific factors that should be addressed when evaluating LT patients with ALD because these patients commonly have a high prevalence of multisystem alcohol-related changes. Risk factors for relapse include the presence of anxiety or depressive disorders, short pre-LT duration of sobriety, and lack of social support. Identification of risk factors and strengthening of the social support system may decrease relapse among these patients. Family counseling for LT candidates is highly encouraged to prevent alcohol consumption relapse. Relapse has been associated with unique histopathological changes, graft damage, graft loss, and even decreased survival in some studies. Research has demonstrated the importance of a multidisciplinary evaluation of LT candidates. Complete abstinence should be attempted to overcome addiction issues and to allow spontaneous liver recovery. Abstinence is the cornerstone of ALD therapy. Psychotherapies, including 12-step facilitation therapy, cognitive-behavioral therapy, and motivational enhancement therapy, help support abstinence. Nutritional therapy helps to reverse muscle wasting, weight loss, vitamin deficiencies, and trace element deficiencies associated with ALD. For muscular recovery, supervised physical activity has been shown to lead to a gain in muscle mass and improvement of functional activity. Early LT for acute alcoholic hepatitis has been the subject of recent clinical studies, with encouraging results in highly selected patients. The survival rates after LT for ALD are comparable to those of patients who underwent LT for other indications. Patients that undergo LT for ALD and survive over 5 years have a higher risk of cardiorespiratory disease, cerebrovascular events, and de novo malignancy. | Claudio Augusto Marroni Alfeu de Medeiros Fleck Jr Sabrina Alves Fernandes Lucas Homercher Galant Marcos Mucenic Mario Henrique de Mattos Meine Guilherme Mariante-Neto Ajacio Bandeira de Mello Brandao | 2018 | World Journal of Gastroenterology2018,24,26: | 7 |
| 2 | Association between Helicobacterpylori, Epstein-Barr virus, human papillomavirus and gastric adenocarcinomas显示文摘AIM To correlate Helicobacter pylori(H. pylori), Epstein-Barr virus(EBV) and human papillomavirus(HPV) with gastric cancer(GC) cases in Pará State, Brazil.METHODS Tissue samples were obtained from 302 gastric adenocarcinomas. A rapid urease test was used to detect the presence of H. pylori, and the presence of the cagA gene in the HP-positive samples was confirmed by PCR. An RNA in situ hybridization test designed to complement Eber1 RNA was used to detect the presence of EBV in the samples, and the L1 region of HPV was detected using nested PCR. Positive HPV samples were genotyped and analyzed for E6 and E7 viral gene expression. Infections were also correlated with the clinical and pathological characteristics of the patients.RESULTS The majority of the 302 samples analyzed were obtained from men(65%) aged 55 years or older(67%) and were classified as the intestinal subtype(55%). All three pathogens were found in the samples analyzed in the present study(H. pylori : 87%, EBV: 20%, HPV: 3%). Overall, 78% of the H. pylori-positive(H. pylori+) samples were cag A +(H. pylori-cag A+), and there was an association between the cytotoxic product of this gene and EBV. Coinfections of H. pylori-cagA+ and EBV were correlated with the most advanced tumor stages. Although only 20% of the tumors were positive for EBV, infection with this virus was associated with distant metastasis. Only the HPV 16 and 18 strains were found in the samples, although no expression of the E6 and E7 oncoproteins was detected. The fundus of the stomach was the region least affected by the pathogens.CONCLUSION HPV was not involved in gastric tumorigenesis. Prophylactic and therapeutic measures against H. pylori and EBV may prevent the development of GC, especially the more aggressive forms. | Carolina Rosal Teixeira de Souza Marcelli Carolini Alves Almeida Andre Salim Khayat Emerson Lucena da Silva Paulo Cardoso Soares Luiz Claudio Chaves Rommel Mario Rodriguez Burbano | 2018 | World Journal of Gastroenterology2018,24,43: | 6 |
| 3 | Identification of patients at-risk for Lynch syndrome in a hospital-based colorectal surgery clinic显示文摘AIM:To determine the prevalence of a family history suggestive of Lynch syndrome (LS) among patients with colorectal cancer (CRC) followed in a coloproctology outpatient clinic in Southern Brazil.METHODS:A consecutive sample of patients with CRC were interviewed regarding personal and family histories of cancer.Clinical data and pathology features of the tumor were obtained from chart review.RESULTS:Of the 212 CRC patients recruited,61 (29%) reported a family history of CRC,45 (21.2%) were diagnosed under age 50 years and 11 (5.2%) had more than one primary CRC.Family histories consistent with Amsterdam and revised Bethesda criteria for LS were identified in 22 (10.4%) and 100 (47.2%) patients,respectively.Twenty percent of the colorectal tumors had features of the high microsatellite instability phenotype,which was associated with younger age at CRC diagnosis and with Bethesda criteria (P < 0.001).Only 5.3% of the patients above age 50 years had been previously submitted for CRC screening and only 4% of patients with suspected LS were referred for genetic risk assessment.CONCLUSION:A significant proportion of patients with CRC were at high risk for LS.Education and training of health care professionals are essential to ensure proper management. | Patrícia Koehler-Santos Patricia Izetti Jamile Abud Carlos Eduardo Pitroski Silvia Liliana Cossio Suzi Alves Camey Cláudio Tarta Daniel C Damin Paulo Carvalho Contu Mario Antonello Rosito Patricia Ashton-Prolla Joāo Carlos Prolla | 2011 | World Journal of Gastroenterology2011,17,6: | 2 |
| 4 | PM_(2.5) chemical composition and health risks by inhalation near a chemical complex显示文摘Particulate matter(PM_(2.5))samples were collected in the vicinity of an industrial chemical pole and analysed for organic and elemental carbon(OC and EC),47 trace elements and around 150 organic constituents.On average,OC and EC accounted for 25.2% and 11.4% of the PM_(2.5) mass,respectively.Organic compounds comprised polycyclic aromatic hydrocarbons(PAHs),alkylated PAHs,anhydrosugars,phenolics,aromatic ketones,glycerol derivatives,aliphatic alcohols,sterols,and carboxyl groups,including aromatic,carboxylic and dicarboxylic acids.Enrichment factors>100 were obtained for Pb,Cd,Zn,Cu,Sn,B,Se,Bi,Sb and Mo,showing the contribution of industrial emissions and nearby major roads.Principal component analysis revealed that vehicle,industrial and biomass burning emissions accounted for 66%,11% and 9%,respectively,of the total PM_(2.5)-bound PAHs.Some of the detected organic constituents are likely associated with plasticiser ingredients and thermal stabilisers used in the manufacture of PVC and other plastics in the industrial complex.Photooxidation products of both anthropogenic(e.g.,toluene)and biogenic(e.g.,isoprene and pinenes)precursors were also observed.It was estimated that biomass burning accounted for 13.8%of the PM_(2.5) concentrations and that secondary OC represented 37.6% of the total OC.The lifetime cancer risk from inhalation exposure to PM_(2.5)-bound PAHs was found to be negligible,but it exceeded the threshold of 10−6 for metal(loi)s,mainly due to Cr and As. | Celia Alves Margarita Evtyugina Estela Vicente Ana Vicente Ismael Casotti Rienda Ana Sanchez de la Campa Mario Tome Iola Duarte | 2023 | Journal of Environmental Sciences2023,,2: | 2 |
| 5 | Ultra-broadband near-infrared NOPAs based on the nonlinear crystals Bi BO and YCOB显示文摘We evaluate and demonstrate ultra-broadband near-infrared noncollinear optical parametric amplification in two nonlinear crystals,bismuth borate(Bi BO)and yttrium calcium oxyborate(YCOB),which are not commonly used for this application.The spectral bandwidth is of the microjoule level;the amplified signal is≥200 nm,capable of supporting sub-10 fs pulses.These results,supported by numerical simulations,show that these crystals have a great potential as nonlinear media in both low-energy,few-cycle systems and high peak power amplifiers for terawatt to petawatt systems based on noncollinear optical parametric chirped pulse amplification(NOPCPA)or a hybrid. | Mario Galletti Hugo Pires Victor Hariton Joana Alves Pedro Oliveira Marco Galimberti Goncalo Figueira | 2020 | High Power Laser Science and Engineering2020,8,3: | 1 |
| 6 | 气功对学习横笛儿童焦虑和心理应激功能的影响(英文)显示文摘目的:基于病例治疗,对气功疗效是否可以用生理测量指标和心理评分量化这一命题进行研究。方法:研究设计为前瞻性干预对照研究。气功组纳入8名儿童,接受为期7周的'白球'气功训练,每周2次,每次30min。对照组纳入8名儿童不接受气功训练。使用针对儿童的'抑郁、焦虑和压力量表'衡量焦虑的主观感受。此外,在研究开始和结束时分别测量两组儿童的唾液中皮质醇水平、心率变化、血压、斜方肌肌电图、反应时间等指标。结果:与对照组比较,气功组在心率指标方面显著降低。虽然在其他指标方面两组之间无显著差异,但是气功组在唾液中皮质醇水平、斜方肌肌电图及血压等指标方面的效应量更大。在焦虑主观感受、唾液中皮质醇水平和心率指标方面,气功组相对较低。结论:'白球'气功可以显著降低学习乐器表演的儿童的心率。基于本研究8/8的样本量,气功也有减轻焦虑和降低血压的作用。对于今后将要开展的量化气功疗效的研究,可以增大样本量,研究其他焦虑感增加的环境下年轻人的情况,设置合理的对照干预措施,解决设盲的问题,测量其他可能会受到气功治疗影响的指标,以及比较气功与其他可以降低焦虑的方法的疗效。 | Claudia Maria Sousa Mario Gonalves Jorge Machado Thomas Efferth Tobias Greten Petra Froeschen Henry J. Greten | 2012 | 中西医结合学报2012,10,8: | 1 |
| 7 | Defect - determined regeneration options for treating periodontal intrabony defects in baboons 显示文摘 | BLUMENTHAL NEIL M ALVES MARIO E A F AL- HUVAIS SALAH | 2003 | J Periodontol2003,74,1: | 1 |
| 8 | ContribuIion of multispectral and multitemporal information from MODIS im ages to land cover classification 显示文摘 | Hugo Carro Paulo Gon alves Mario Caetano | 2008 | Remote Sensing of Envi ronment2008,112,98: | 1 |
| 9 | TDBS:A Time Di- Vision Beacon Scheduling Mechanism for Zigbee Cluster-Tree Wireless Sensor Networks 显示文摘 | Anis Koubaa Andre Cunha Mario Alves | 2008 | Real- Time Systems2008,40,3: | 1 |
| 10 | In vitro显示文摘 | Loreto S Ev Alves D Mario Nv | 2011 | Antimicrob Agent Chernother2011,55,7: | 1 |
| 11 | TDBS: a Time Division Beacon Scheduling Mechanism for Zigbee Cluster-Tree Wireless Sensor Networks 显示文摘 | Anis Koubaa Andre Cunha Mario Alves | 2008 | Real-Time Systems2008,40,3: | 1 |
| 12 | A multi-integrated approach on toxicity effects of engineered TiO2 nanoparticles显示文摘设计 nanoparticles 的新性质在有机体和生态系统上在安全,命运,行为和这些粒子的生物学的效果上为新知识驾驶需要。钛二氧化物 nanoparticles 为大量应用广泛地被使用了,例如,自我清洗的表面涂层,太阳能电池,水处理代理人,热门 sunscreens。在这种情形以内,增加的环境暴露能被期望,但是 nanoparticles 的 ecotoxicological 评估上的数据仍然是少见的。这个工作的主要目的是在几个有机体的 TiO 2 nanoparticles 的效果的评估,盖住不同营养的层次,用一组水的试金。也用组织学的脊椎动物模型有机体纸巾和 ultrastructural 观察和压力酶活动是的鱼学习了。TiO 2 nanoparticles (Aeroxide?P25 ) ,锐钛矿(65%) 的二篇阶段作文和有一个平均粒子的金红石(35%) 缩放 27.6 | Ana PICADO Susana M. PAIXAO Liliana MOITA Luis SILVA Mario S. DINIZ Joana LOURENCO Isabel PERES Luisa CASTRO Jose Brito CORREIA Joana PEREIRA Isabel FERREIRA Antonio Pedro Alves MATOS Pedro BARQUINHA Elsa MENDONCA | 2015 | Frontiers of Environmental Science & Engineering2015,9,5: | 1 |
| 13 | Preemptive endoluminal vacuum therapy after pancreaticoduodenectomy: A case report显示文摘BACKGROUND Pancreaticoduodenectomy is a technically demanding operation,with reported morbidity rates of approximately 40%-50%.A novel idea is to use endoscopic vacuum therapy(EVT)in a preemptive setting to prevent anastomotic leakage and pancreatic fistulas.In a recent case series,EVT was proven to be effective in preventing leaks in patients with anastomotic ischemia.There have been no previous reports on preemptive EVT after pancreaticoduodenectomy.CASE SUMMARY We describe the case of a 71-year-old woman with hypertension and diabetes who was admitted to the emergency room with jaundice,choluria,fecal acholia,abdominal pain,and fever.Admission examinations revealed leukocytosis and hyperbilirubinemia(total:13 mg/dL;conjugated:12.1 mg/dL).Abdominal ultrasound showed cholelithiasis and dilation of the common bile duct.Magnetic resonance imaging demonstrated a stenotic area,and a biopsy confirmed cholangiocarcinoma. Considering the high risk of leaks after pancreaticoduodenectomy,preemptive endoluminal vacuum therapy was performed.The system comprised a nasogastric tube,gauze,and an antimicrobial incise drape.The negative pressure was 125 mmHg,and no adverse events occurred.The patient was discharged on postoperative day 5 without any symptoms.CONCLUSION Preemptive endoluminal vacuum therapy may be a safe and feasible technique to reduce leaks after pancreaticoduodenectomy. | Flaubert Sena de Medeiros Epifanio Silvino do Monte Junior Romero de Lima França Heli Clóvis de Medeiros Neto Juliany Medeiros Santos Eligio Alves Almeida Júnior Samuel Oliveira da Silva Júnior Mario Herman Santos Moura Pedreira Tavares Eduardo Guimarães Hourneaux de Moura | 2020 | World Journal of Gastrointestinal Endoscopy2020,12,11: | 0 |
| 14 | Robotic4all project:Results of a hands-on robotic surgery training program显示文摘Objective Although robotic surgery adoption and its indications are growing worldwide,for multiple factors,including costs,there is a lack of training and experience.Our aim was to study the impact of a robotic introduction training program on gesture performance,such as suturing,in robot-naive individuals.Methods Using the DaVinci robot,a 2-hour program was based on virtual reality and anatomical model exercises.All participants performed 3 repetitions of virtual reality exercises on the virtual simulator,and then performed and were assessed on 2 tests,ie robot and laparoscopic training box.After the course,the participants were surveyed for this training program.Results Twenty-seven residents and surgeons were enrolled in the training program.With only 2 hours of training,all of the participants were able to complete the training program,thus learning generic and specific skills in robotic surgery.In virtual reality exercise,the scores of the 3 exercises increased significantly with every repetition(p<0.001)and the size of the increase was large.The completion time on the robot platform was 2.6 times faster(169.33±28.28 s vs.447.96±156.55 s,p<0.001)than that in the laparoscopic box,and the difference between both types of tests was large(pη2=0.797).The centralization and passage of the needle were significantly better on the robot platform(5 vs.3,p<0.001,r=0.47;5 vs.4,p<0.001,r=0.59)than in the laparoscopic box.For the intracorporeal stitch+knot test,every participant was able to perform the exercise on the robot but only 85.2%(23/27)in the laparoscopic box.Twenty-one participants answered the survey,and 13(61.9%)of them considered robotic performance independent of laparoscopic experience.Conclusions Surgeons are interested and seek training in robotic surgery.We implemented the first hands-on robotic surgery training program in Portugal and participants considered it was important and adequate for its purpose.All participants,even without robotic experience,learned quicker,performed better,faster and more precisely on the robot over laparoscopy. | Mario Rui Gonçalves Jose Novo de Matos Antonio Oliveira Ricardo Marinho Irene Cadime Palmira Carlos Alves Salvador Morales-Conde Miguel Castelo-Branco | 2023 | Laparoscopic, Endoscopic and Robotic Surgery2023,6,1: | 0 |